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a

X X X I . A tabular Viem of the eaternal Characters of Four Classes

of Animals, which

LiltnE crrrmged uiicler 1

N

s

E C T A

; with

the

Distribution

of

the

Geiimz

composiig l’lrree

of

these

Clas s e s

into

Orders, &. and Descriptions of seuerul New Genera and Species .

By William Eyord Leach,

Ad. D.

Read

April 19,

M a 9 3, and June 1

1814.

THEbject of this paper

is

chiefly

to

call the attention of

Entomologists to examine into the propriety of constituting

a new class to comprehend the

Syngnatha

and

C h i l o p a t h a of

Fabricius,

which Latreille and Larnarck have arranged with the

A

raclr

11ides.

As the leading characters of the classes which were considered

by

Linn6 as liisecta are very obvious, I

shall i n

the first place

content myself with submitting to t h e Society the external cha-

racters, through the medium of a table,

and

shall then consider

three of thc classcs separately.

All the aiiiiiials i n question agree

i n

having articulated limbs

for motion, a i i d they

all

have their spinal

mass

of nervcs

com-

1)osed of ganglia, which are formed as i t were on a cord ; or, in

other words, are brought into communication with each other.

By the following table the most obvious points of distinction

may

readily

be learnt.

A. 13ru1r-



308

D11

L E A C

L’S

Armiigement

of

the

Crirstacecr,

4c..

a n d altliougli

f i w n

the i n f a n t state of o u r

knowledge I

cannot

v e n t u r e

to proposc rianied divis ions, y e t I shal l cndeavou r to dis-

pose

the geiiera

i n t o

what

appear

to be

n a t u r a l

groups.

A.

Abdomen

mnris

5 -articulntum articulo medio longiore, f t e m i n c e

7-articdatum. Pedes

2

untici didactSli. Genera.

Drvrsro I. Test a subrhomboidalis. Pedes duo antici longissirni, di- 1.

LAMBRUS.

gitis deflexis.

DIVISIO1. Test a postice truncata. Pedes duo antici xnaris elon-

Szilrdivisio

1.

longiore.

palpi geniini est erni caulis interni articulo secu ndo breviore.

gemini estern i caulis interni articulo secu ndo longiorc.

gati, foernina niediocres.

Antennaz elongataz utrinque ciliatz.

Test a elorigato-ovata. Pedipalpi gemini externi wticulo secundo 2. CORYSTES.

Testa subcircularis ; orbita integra. Ungues acuti, f lexuosi. Pedi-

Testa subcircularis j orbiti fis.suris

2 .

Lrngues recti. Pedipalpi

4.

ATELECYCLUS.

3.

THIA.

Szildiuisio 2. An ten nc medioeres simplices. Pedes postici unguibus

eompressis, natatoriis.

Orbita integra. Ungues omnes compressi. 5. PORTUMNUS.

Orbita superne fissura

1. Ungues

postici subeompressi, acuti.

6.

CARCINUS.

Orbita superne fissiiris 2. Ungues postici valde conipressi. Ped cs 7.

POKTUKUS.

Orbi ta superne fissuris

2.

Ung ucs postici valde compressi. Pede s S. LUPA.

2 antici inaquales .

2 antici aequales.

Subdiuisio 3. An ten nz mediocres simplices. Pedes 8 postici natatorii.

Subdiuisio

4. An tt iin s simplices, breves, Pedes S postici consiniiles,

Antennae ex tern z inter

oculo-

10. CANCER.

Antenna: in oculorum cantho 11.

XAXTHO.

12.

CALAPPA.

9.MATUTA.

simplices.

Pedes

2

antici simplices, inaequales.

rum cantliuni et frontem insert*.

Pec es

2

antic i simplices, inazqudes.

interrio insert=.

Pedes

2

aiitici cristati, cqua les.

B. A6domen in

utroque

sexu

i’-ar~iculatum.

Pedes duo ant ic i di-

dacty

Ei.

DIVISIO



Drvrsro

111.

SuCdiuisio

1,

Pedcs S postic i simplices, consini les.

Testa antice arcuata, lateribus in angulum convergcii-

tibus. (Ped es duo antic i inaecpales).

Genera.

Pedipalpi gemini externi caulis interni articulo secuntlo ad Rpicem

13.

Prwxrxvs.

internuin palpigero.

Pedipalpi gemini externi caulis interni articulo s e c d o subtus pal-

1-1. G E C . \ R C I ~ ~.

pigero. Ungu cs et tibia: spinosa.

Ungiies et tibiae incrmes.

Siddioisio 2 . Tes ta quad rata aut subquadrata. Oculi fronte inserti.

* Tes ta sub quatlrata oculi pediinculo brevi.

**

Testa quadrata oculi pedunculo elongato.

Pedipalpi gemini externi cadi iriterno uninrticulato.

15. PIKFOTHERBS.

Oculi pedunculo ultra illoium apicem pro du cto . I’cdes

2

antici in- 16. OCYPODE.

Oculi pedunculo ultra illorum apicem

11011

producto.

Pedes 2

antici 17.

~ J c A .

Oculi peduncu lo ultra illorum apicem no11 producto. Pedes 2 antici 19. GONBPLAX.

aequales.

inaxpal

cs.

aequales.

SuZdiuisio

3.

Testa subquadrata. Oculi ad angulos onticos inserti. 19. GRAPSUS.

Drvrsro

IV.

Sultdii~isio

1.

lato.

Pedes duo postici saltem dorsales.

Pedes duo postici dorsales.

O cd i pedunculo biart icu- 20. I ~ oM o L . ~ .

SuZ&i\io

2 .

Pedes

quatuor postici tlorwlc

..

OcuIi

pethnculo uiii-

articulato.

Pecks quatuor poctici ninnodactyli.

I’eties quatuor postici didactyli.

21.

DORIPPE.

22. D K O M I A .

D ~ V I S I O

.

Tes ta antice rostrata. Petlcs S postici simplices, consi-

Siihdiuisio 1. Digiti deflexi. 23. EURYNOMR.

Szitd:visio

2 .

Digiti haud cleflexi.

miles.

Antennae esterriae articulo primo e ster ne ha ud dilatato.

a.

Pedrim par anticum aliis vis crassius.

AntenriE ester nie ar ticulis ciiiobus primis subrrqualilius. Te sta spino-

24. hfara.

sissimb.

b.

Pedum

par

anticum aliis distincte crassius.

Ungues interne dentir ulati, Tes ta villosa. 2.5,

~ ’ J S A .

2 9 2

Antenna



310

Dr.

LEACH'S

rrangement

of

the Crustacea,

c.

**

Antexme externae articulo primo externe dilatato.

Genera.

Testa subtuber culata, lateribus

pone

oculos hastato-productis.

26.

HYAS.

C . Abdomen

in

utroque s e m 6-art iculatum.

DIVISIOI.

SuErdivisio 1

OcuIi retractiles. 27.

INACHUS.

Subdivisio

2.

Pedes 2 antici didactyl i.

Pedes parium

2 ,3 ,4

et 5 consimiles, grades.

Oculi nudi haud retractiles.

Rostro fisso.

28.

MACROPODIA.

Rostro integro.

29. LEITOPODIA.

DIVISIOII. Pedurn par quintum minuturn, spurium.

30. LITHODES.

D.

Abdomen fcernina: (marisque?)5-arliculutum. (Testa antice ro-

31.

PACTOLUS.

strata.)

E. Abdomen

in

utroque s e m 4-articulatum. Pedes 2 antici didactyli.

Testa rotundata aut subrhomboidalis.

Testa transversissirna, cylindrica.

32. LEUCOSIA.

33.

IXA.

D I V I S I O I .

Abdomen M A

R I S

5-articulatum articulo riredio longiore

;

r a % f I N z

7-articulatum.

Tes t a

rhomboidalis.

Anteniice

ex teriorcs sim-

plices. Pedipalpi gemini externi caulis interni articulo

secundo

latere interno emarginato pro insertione palporum. Pedes duo

antici didactyli longissimi

;

digitis deflexis ; pedes alii siin-

plices, consimiles.

M A J ,

Bosc,

Latrei l le .

Gen.

1. LAMBBUS.

Spec. 1 .

Lai nbr us longirnanus,

Maja longimana, Bosc Hist.

N a t .

des Crust.

i. 250.

D I V I S I O 11.

Abdomen

N A R I S 5-articulatum articulo medio longiore :

F C E M I N I E

7-articulatum.

Testa

postice truncata

:

Antenna erteriores

triarticulata



D r ,

LEACII'S

rrangement

o f

the

Crnstacea,

&.

311

t r iar t iculatE art ic ulo ul t imo e segmen

tis

plurimis min utis effor-

inato.

PedipnZpi g e m h i e st er ni

cau l i s in te rn i a r t i cu lo secundo

latere in terno ema rgina to

aut

ap ice in te rno t runca to .

Pedes duo

an

ic i

did a

c y

1 ,

m r

is 1

on

g

ore

s.

S U B D J V I S I O 1 .

Antenna longissimce u t r i q u e cil iate.

Peclum paria 2, 3,4 t 5 coil-

sirnilin

;

ar. anticum

digitis

defEesis.

Gen .

2. C O R T S T E S ,atreille.

A L B U h ' E - 4 ,

Fu6r.

Antenim esterioi*es corpore longiorcs, segniento tertio articulis

elongatis, cylindricis.

Pedipnlyi gemini eaterni

caul is in terni

*

art iculo secundo (primo longiore) angusto apice angust iore

rotundato , la tere in terno late ernarginato .

Y e d u in par ant i -

cum

R I A R I S

corpore

duplo

longius,

su

bcyiindricuni, inanu gra-

dat in i subcrassiore, s u bconipress&;

Fmni i

N:E corporis longi-

tud ine i n a n u coinpressa :

pnria reliqzra

ti

hiis

tarsisclue

lon-

g i t u d i n e

subaeyua ibus,

unguibus clong:rntis, rectis,

acutis

lon-

gitudinal i ter sulcat is ins tructa.

Abclouieii

31 A

II

I s ar t icu lo

pr i m o

l ineari transverso, secu nd o longiore

\ i t

rinq lie postice pro-

ducto , ter t io aqualiter s u b q a a d r a t o , q u a r t o

przec'e:dt.utc

an-

gust iore t ransverso, qui nto angust iore subtr iangu lari

apic-e

ro-

t u n d a t o ;

~ ~ M I K ~ L

rrticulis sex

priiuis

transvcrsis

antic*(. r c u -

atis, quin to t r iangulari

apice

ro tundato . Tes ta o tdoligo-ovata

an t ice subros t ra ta , pos t ice marg ina ta . Ocitli pedunciilo reclivi

ha ud crass iores

;

orLila sup ern c fissura

una .

Spec. 1 . C o r y : e s

Cassiuelnuitus.

C.

tes th granulari post ice subcrenulat i i

;

frorite bifido

;

a ter ibus

Cancer Cassivelaunus.

Penn. B r i t . Xool. iv.

6.

t. 7 . 8 s

.

Herbst 1.

19.5. t . 14.f 2.

d .

t r identat is .

Cancer



312

Dr.

EACI~'S

rrangement

o

the Cr+stacetr, +c.

Can cer personatus . Herbst I . 193.

. 12.

f. 71. ? .

Albunea, dentata.

J'ubr. Sup. El i t

Syst. 39s.

Corystes dentntus . Loti..

Ce l l

Crirst.

e t

Iris. 1. 40.

Hnbitat

i n

Europeo mari.

Gen. 3.

T H I A .

Antemce elcteriores

corpore longiores segniento tertio articulis

elongatis cylindricis.

Pe d +a lp i

gemini

es terni

caulis interni

art iculo secu ndo primo mu1 to breviore

a d

apicem interiium

truncato-subemarginato .

Pedirin p a r anticrtin R I A I L I

corpore

paululuin longius nianu comprcssa

; p u r in

alia tarsis tibiis

d u

plo b re 7

i

or bu s, u n

g

u b us ac11

is

,

flexu

os s

1

on

g

tu

d in

a1 ter

sulcat is . I 1 bdorncn RI A R i s ar t icu lo yrirrio transverso arcuato,

I i n ea r , ec

u

i d o

pa

u

1

ul

u

ni 1

on

g o

re

:in

t i c

e arc

i

a 0-su 11pro f 11c o,

t

er o v

a1

d e el

on

g

a o a pi

c

:ni v

e

I'S u s

pa

111 i

1

1ii 1 ii n g ti s t iore

apice

6ub

e

niarg

i

n

at0

q u a r t o

Y

u b q 11a I

ra t

o

a p

ce

su

I

Ic' iii a

rg

11 a

o,

qui nto t r iangulari.

Tes ta

subc ircula ris later ibu s sensiin postice

in anguluui convergent ibus , post ice granulari-subinarginata,

f ron te subproducta . Oculi ininimi

v i s

prominul i

;

orhita pos-

t i ce haud

fissa.

Spec . 1.

Thia

polita.

T. testa convex$. polith sparse puncta t i i ; orbits postice eniar-

ginat

a ter ibus u t r inyue obscure quadr ip l ica t i s ; ronte inte-

gr%

arcuatA.

Ca ncer residuus.

H c r b s t 3. 53.

.

4s.

,f. 1 2

Gen .

4. A T E L E C Y C L U S .

C A N C E R

Nippa),

Montagu.

Anteiiiie

exteriores

corporis ad diinidiurn longitudinis, segineiito

tert io art icul is

cylindricis

elongatis. Pedipalpi gemini

esterni

ca.ulis intern i art icu lo primo breviore ad apiceiii internuin pro-

d u c t o

e t ad

la tu s in ternurn apicei ii versus einargir iato

ad pal-

p

u 111



Dr.

LEACH’S

wangement

o f

the

Crustacea,

#c.

3

13

poruiii insei.tionem.

Pecluiii p a r anticrun

nrn

R I S

corpore

1011-

gius nianu compressa

;

F ~ Z N N X corporis longi tudine inanu

compressa

;

pariu

rel iyua tars is t ib i isque lon gi tudine zqiialibus,

unguibus rectis, eloilgatis,

qua d r a t

is, Iongi tudinal i ter sulca-

tis,

acu t i s

ad

apices terct ibus

n u d i s

(pubticis obscure sub-

conipressis) . Abt loi ) ie i i M A K I S ar t icu lo p r i m o t rmsvcrso, l ine-

ari , secunclo du pl o longiore, tertio

valde

elongato

wpicem

ver-

sus angus t io re ap ice su brecto , quarto subqt iadrnto angul is

ant icis product is , qui t i to lageniformi apice acut iss i rno

;

FG-

M I N E art icul is 1 , 8 ,

3,

4 e t 5 transversis longitudine

v i s

di-

vers s, a r t c i 1o

ses

c)

transv1

rs o-

1

iia tl rato

a n i

c

c

c

n

a rg n a 0,

a r t c i

o

ii 1 i r i io el

o

nga

t

0-s

u

b

t I’

i ang i1ar

i

post ce s ii tI 1)

rod

u c

t

0.

Testu sii bcircularis latc ribus sensini postice i n augiilurn conver-

gent ibus post ice t runcata et granulari -niargi i iata . Oculi

pe-

dun cu lo angust io res ; orbitn pos t ice ex terne

fissuris duabus,

in-

fernc

e x

erne fissuril unh.

S U J J D I V I S I O

2.

A n t c n m simplices, inccliocres. Pedicin parin 2,

3

e t

4

consirnilin, ~ 1 -

gtiibics crctitis

;

a r

quintuiri

compressiina,

nata torium.

Gen .

5.

P O R T U M N U S .

C A N C E R , lanci,

Penn., IIerbst.

Oculi

p ed u n cu l o

liaud

crassiores

; orbitn

integra.

Pedum

par

an-

ticuiii

q u a l e

;

paria.

2,

3

e t

4

unguibus

coinpressis in te rne que

basin versus dilatatis

;

par quirituin un gue foliaceo, coiiipresso,

lanceolato . Abdomen nrsnIs ar t icu lo qua r to e longato . Testa

diametro transverso longitudinalem tsequante.

Spec. 1.



314

Dr.

LEA C H ’S

4rrangenie?it

of

the Crustacea,

c.

Spec. 1.

Porturnnus

uariegatus.

P.

tes ta obscure subgranulatA, u tr in que 5-dentatA dent ibus 2 et 3

subobsoletioribus ; ronte 3-den tat&; nrpis in ter ne unidentatis.

Por tu rnnus ra r iega tus . Leach,

E din . E n cy l .

vii.

391.

--,

2lIulac. Podopli th.

B r i t. t .

iv. d e t $ ,

Cancer latipes variegatus. Planc. de Conch. min. notis, p . 34.

tab. jij.3g.

7.

B.

C.

8.

Ca ncer lat ipes .

C an ce r

Lysianassa.

Habita t

in l i t toribus arenosis B ritannia= vulgatissime.

P e n n . Bri t . XooE.

iv.

p . 3. tub. 1. jig. 4.

? .

Herbs t

54.

j ig .

ti?

Spec .

2 .

Porturnnus monodon.

P . test$ obscure subgranulatA, lateribus u trinque unidentatis

;

frontc t r idcntat i i ; carpis in terne unidentat is .

H a b i t a t

Mus. Brit.

pert inere videtur.

Ad hoc

genus

Cance r l a t ipes Merbst (i.

267. ab.

xxi.

j g . 126.)

G e n .

6. C A R C I N U S .

C A N C E R

uctoruna.

Ocrcli pedunculo angust iores ;

orbita

postice e t inferne unifissa.

P e d u m par

anticu iii inaequale niani bus ext ern e glabris

;

par

post icuni conipressuni , subnatatorium. Abdomen M A R I S arti-

culo

qu ar to t ransverso pra xede i i te v ix angust iore.

Tes t a

(dia-

met ro t ra ns verso

s

u bniajore) u t rin qiie 5 -d en ta

a.

Spec.

I. Carcinus

Manas .

C.

test4 granulari

;

f ron te t r iden ta t%

;

ateribus 5-dentatis.

Ca ncer Maenas

auctorum.

Gen. 7.



D r .

L E A C H ’ S

rrangement

o f

the Crrtstacea,

&.

3

15

Cen. 7.

POI’LTUNUS,abr., Latr . , Bosc, 2jc.

Octtli ycduirculis multo crassiores ; orbitn postice fissuris duabus,

inferne e st erne fissura unicA.

Abdorrie7~

M A I C I S articulo quarto

transverso. Pedrinz pa r anticum subinzequale, manibus e x t e r n c

elevato-lineatis, brachiis szepius incrmibus ; par posticum conr-

pressum, natatoriu111 foliaceuin.

Testu

(d atrietrc) transverso

submajore) utrinque 5- (rarius 6-) dentata.

*

Ungzies

postici lined elevatd longit

udinali

;

alporum geminorion

esternorum caulis iiiteriii articuliis secundus ad apicem internurn

t r m c a t us.

a . Orbita interne ad oculorum insertionem imperfecta ; arpis

Spec. 1. Portunus puber.

P.

antennis corporis dimidio Iongioribus, test%pubescente, fronte

Cancer pu ber. Liiin. Cancer

velu

tinus. Peiiii Portunus pu-

Habitat

i n

ocean0 Europze.

bidentatis.

ni

u l tiden a 0.

her. Latr.

b. Orbita interne subimperfecta ; carpis unidentatis.

Spec. 2.

Portuntts

corrugatus.

Y. es t & convex&, ineis transversis serrato-granulatis ciliatis utrin-

que 5-dentatis

:

dentibus tribus posticis acutioribus, fronte tri-

lobo,

lobis subgranulato-serratis: medio majore subacuminato,

mani bus supra unidentatis, unguibus posticis apice acutis.

Cancer corrugatus. l ’ e ma n t ,

Herbst,

Portunus corrugatus.

L e a c h ,

Edin.

Encycl.

v i i .

390.

Hubitut i n Britannia rarissime.

M u s .

Montagu, Nost.

V O L . XI. 2 r

Mr.



316 Dr.

L E ACII ’S

?wmgernent

of

the Crnstacea,

c .

RIr.

C. Prideaus sent me the young of tliis species f rom the Ply-

moil

th Sound.

The

fissure

in the under part

of

tlic orbit is wide enough to ad-

mit a knife ;

n

the

two

following species

the

sides of the fissure

touch

each other.

Spec.

3. Portunu s emarginatus.

P.

testA convexiore lineis abbreviatis e granulis conipositis, den-

tibus tribus utrinque : penultimo minore, fronte emarginato,

manibus supra unidentatis, unguibus posticis acutis.

Portunus emarginatus.

Habitat ad Danmoniae littora, semel obvius.

Mus.

Nostr. 9 .

Abdomen

F ~ M I N Xatum, tenuk ciliaturn, angustius q u a m in

P. Depuratore,

articulo penultimo minus arcuato, ultimo

an-

gustiore, acutiore, secundo tertioque minus carinatis, quarto

vix carinato.

Spec. 4.

Portzinus arcuatus.

P. test& convexiore lineis abbreviatis e granulis con1 positis, denti-

bus utrinque tribus

;

penultimo minore, fronte arcuato integro,

manitus supra unidentatis, unguibus posticis acutis.

Leach, Eclin.Encycl. vii. 390.

Portunus arcuatus.

Test;e fronte arcuato iutegro,

a

Portuno emargiriato tantum

dif-

Habitat

i n A n g l i z

mari rarihs.

Rlus. Sowerby, Leach. 8.

** Ung ues postici ecostati; pa lporum geminorurn externorurn ca di s

interni articulus seczcndus ad latzrs internurn ernarginatus; rbitu

in t ern2 sub a nte nn a externa insertioile inzperfecta.

Leach,

Eclin.

&ncycZ. vii. 390.

fert ; forte varietas

?

Spec. 5 . Portunus marmoreus.

I?. test%convex%obsoleti: t e n d granulata, utrinque dentibus quin-

ciue



Dr.

L E

C II 'S

Ar~angernent

f

the

Crustacea,

4.c.

317

que

subaequalibus, fronte del i t ibus t r ibus aq ua l ib us apice

rotundat is , m anibu s glabris sup ra unidentat is , tars is posticis

apice acut ioribus .

Cancer

p i m a t u s

marmoreus. IVIontagu,

Mss.

Por tunus

marmoreus.

Habitat ad Dannionize Australis l i t tora frequens.-Detesit Mon-

Abdominis articuli

2

e t

3

ransversitn carinati .

Leach,

Edin.

Eiicycl.

vii.

390.

__I Malac.

Pocloplitli. Brit.

tub. vi i i .

t a p .

Spec .

6.

Portmiis

Depuratos..

P. tes t$ subc onipla nat& ineis elevat is obl iquis e t t rai isversis ab-

breviatis e granul is composi tis , u tr in que dent ibu s quin qu e

:

se-

cundo breviore :post ico subremotiore, fronte dent ib us t r ibus

:

medio su bacu t iore sub long io re , man ibus s upr a un iden ta t i s ,

tarsis posticis api ce acutioribus s z p e

su

hemarginatis.

Cancer D epura to r .

Cancer depurator ,

var.

Yorturius depurator.

Fab.

Sup. Ent. Syst.

Habita t

in ocean0 Europceo freyuentissime.

Ab d o me n

N A R I S

t r iangulare ;

F G A I I N Z

Iatum, lat e ci l ia turn , ar t i-

culis

3,

4, e t

6

basi1arit)us latioribus, pen ultitno laterib us ar-

cuat is , u l t im o przccedcnte a br up tc angust iore.-Abdominis ar-

t iculi

2-3 in

utroclue sexu (maris praesertim) transversini ac ut e

car n a s.

Linii. Syst. Nat. xii. 1043.

23.

Pub.

Ent. S p t . i i . 451.

44.

I e i i i i . Brit. Xool. iv. tab. iv.jg. 6.

A.

Spec .

7. Portuiius lividus.

P. testt i cornplanat&

enu i :

s u b g ran u la t 2 u t r i n q u e d en t i b u s q u i n -

q u e

:

secuiido subbreviore : post ico remotiore, fronte dent ibus

t r ibus acu t i s

:

nedio longiore, man ibus sup ra unidentat is , tar-

s is posticis apic e ab ru pte producto .

2.1.2

Cancer



320

Dr. Le

A C I I ' S

Arrangernewt

o

t h e

Crmtacea,

l j c .

plicia.

urc11a

t0.

Tes ta

transversa, mnrgiiie un

tic0 in

lineam semiellipticam

Gcn. 10.

C A X C C I : .mtoruin.

A n t e i m e esterna breves, inter oculornin cantliuni internum

et

frontem insert= ; nterne clypei niedio in foveolis receptze, pe-

dunculo s u blunari. PaZpi gemini cxterni caulis interni articulo

secundo ad apicein in ternuni emarginato. Testcr postice

mar-

ginata : orbitn postice fissurb unic& est ern e uniplicat%, sub-

tus fissurh unicb et externe uniplicata.

Pedunz

par anticum

i

n

;equ

a1 e

.

Spec. 1. Cancer Pngurus.

C.

testb granulat ii utrinque novernplicatti, fronte trilobo.

Cancer pagurus auctorum.

Gen.

11. S A N T I I O .

C A N C E R ,l fontagzi , (I ler bst ?)

Aiitesaiza ea . te i* i iebrevissimae, in oculorum can tho interno insert= ;

i n t e rne sub clypei prominentis margine ant ico foveolis receptse,

pedunculo sublineari. Pedipalpi gemini externi caulis interni

articulo secundo ad apicem internuin emarginato. Testa

pos-

tite subniarginata. Orbita supra integra inferne externe

fis-

sura unich.

Peclirin

par

anticum ini~ quale .

Spec. 1.

.Xan tho jo r i c la .

X .

carpis supra bituberculatis, test& utrinclue dentibus quatuor

ohtusis

:

interstitiis escisis, digitis

nigris.

Canccr floridus. ,WontagzL, Trans. Liiris. SOC.s. p. 85. t. 2. jg. 1.

l'ar.

p.

Digi tis concolori

bus.

Habi tat in Danrnoniae Australis littora passim.

Mr. RIontagu has considered this species to be

t he CancerJo-

ridus of

L i n n 6 ; but an exaniination

of the

characters in the

Amanitates



594

Dr.

LEACH’S

r rangement

of

the Crustacea,

4 c ;

D I V I S I O

IV.

Abdomen in utroque sexu 7-articulatuin.

Peclum par anticum &-

dactylurn : ar quinturn saltem dorsale.

S U B D I V I S I O 1.

Pedum p a r

quinturn

dorsale.

Oculi

yedunciclo biart

iculato.

Gen.

80.

H O M O L A .

Testu elongato-quadrata, fronte sub-producto.

Oculi

niagni

sub-

globosi,

pedunculo

eloiigato

biarticulato, articulo secundo

bre-

vissimo pritno abrupte crassiore. Antennce e x l e r n a i n fra oculos

insertae, articulis duobus primis valde elongatis pr iu io crassiore;

interna intra orbitas insertae, et in oculorurn cantho interno re-

poneadz.

Ped ipn lp i gernini e x t e mi

caule

i n

terno

articulis duo-

bus angustis, elongatis, articulo secundo

ad

apiceni palpigero;

palpi

triarticulati utrinque hirsuti, articulo p r i m o breviore.

Pe-

durn paria 2, 3 t 4 consirnilia, unguibus compressis, acutis in-

terne spinosis instructa

;

par

quintuni

do~sale

nonodactylum

ungue spinuloso breviore,

tarso

brevi interne spinuloso.

Spec.

1 . Hcmoltr spinijrorrs.

11. test$. antice spinoss, lateribus antice spinulosis, femoribus

Hu

bitat

Mus.

britann.

Pedutn

paria

4

et

5

dorsalia.

posticis interne trispinosis.

S U B D I V I S I O

2.

Oczcli

peclui tcdo simplici.

Gen. 21.

DO~CIPPE.

Ped+aZp* gcmini

esterni articulo primo interno

dilatato,

articulo

secundo



D r .

L E A C H ' S

rrafigetaewt

sf

the

Crwtacch,

&.

925

secundo angusto et ad apicem palpigeri. Testa s ubtriangu-

tari antice truncata. P e d u m paria 2 et

3

consimilia, unguibus

elongatis subquadratis, simplicibus acutis: paria

3 et 4 breviora,

dorsalia, monoclactyla. Antenne

esteriores

supra et intra

oc-*ilos

insert=, articulis duobus

primis

longioribus ; nteriores in tra e l

infra

oculos insert=.

Spec. 1.

Dorippe quadridens, Latr .

Gem

22..

DROMIA.

Pedipalpi geiniwi es teru i

biarticulati articulo secundo sublatiore.,

breviore

ad apiceni

internum palpigeruni. P e d u m paria

et

3

simplicia

;

4

et 5 didactyla, breviora. Antenng eateriorw in-

fra

oculos insert=

;

articulis duobus primis majoribus, reliquis

abrupte crassioriblcls; nteriores i n f r a oculos internuin

versus

inser

ae.

S4VISIO v.*

Abdomen

in

utroque sexu 7-articulatum.

Pedum

par

anticurn

didactylum

;

paria

2,3 ,4

et

5

siniplicia, consimilia.

Testa tri-

angularis, antice rostra ta (Antennae interiores

in

fossulis

$08

sostro

reponendce.)

S U B D J V I S I O

1.

Digiti dejleni.

CANC R, Pennunt.

Anteniace ex tern= articulo primo secundo breviore.

GCn. 23. E U I t Y N O i .

Testa

verru-

cosa,

rostro laciniis divaricatis.

Pedes

antici maris valde

elonga .

Spec. 1. Eiirynome aspera.

E.

pedibus anticis femoribusque tuberculatis, testa dorso tuber-

* haU merely treat of

t he

indigmous

genera

of tliis

division.

2 u 2 CUIHS



588

Dr.

LEACH ^

Arrangement

of

the Crusfasca,

&z.

Spec. 2. Pi sa nodipes.

Leach,

Zool.

Miscet .

uol. i i .

t ab .

78.

1’.

rostro horieontali, femoriim apice brachiisq

ue n o d o h

Pisa nodipes.

Mus. Britan.

I I d i t u t ?

+f-

Tes t a

villosa

later ibus spz’nosis.

Spec.

3.

Pi sa Te t raodon .

P.

test% ateribus utrinque 6-spinosis

:

spinis d u a b u s

minoribus;

Cancer tetraodon.

Cancer

Praedo.

Maja tetraodon.

Blastus tetraodon.

H a b i t a t

in Angliae australi-occidentalis mar;.

q u

at

1or

m

a jori

bus

.

Penn.

Brit. 2’001. iv. 7.

tab .

viii. j ig. 25.

Herbs t ,

t a b .

xlii.

jig. 2 ?

BOSC,i s t . N a t . d es Crust .

i. 254.

Leach, Edita. En cycl.

vi i .

431.

Ad hanc sectionem forte pertinet

Maja

armata, L a t r e i l k .

**

Antennae externce articulo

primo

externe dilatato.

Gen. 26. H Y A S .

C A N C E R , erbs t .

INACIIUS,abr.

T e s t a

elongate-subtriangularis,

subtuberculata, lateribus pone

oculos hastato-productis ; rastro

fisso

laciniis approsimatis.

An te nn a externce articulo primo dilatato secundo longiore. Ye-

dipaZpi

gemini externi articulo secundo ad apicerri in te rnurn

emarginato.

Sp e c . 2. IIy as araueus.

h i A J A , B O S C , L a i r .

H. testa processu hastiformi postice tuberculato.

Cancer araneus.

Lha. spt. N u t . 1044.-Fn. Sv. 493. 2030.

Cancer



DP.

EA

11's

Arrmgement

of

the Crustaceit,

&.

329

@acer Bufo. Herbs t ,

i.

242. tab.

xvii. j ig .

59.

Inachus

araneus. Tabr. Sup.

E n t . S y s t .

356.

Hyas araneus.

Leach,

Eclin.

E q c l .

vii.

431.

Habitat in niari Scotico vulgatissime, i n mari Angli3e rarior.

Cancer araneus. Peizn. B r i t . Xool. iv.

tab.

ix.$g.

16. an distincta

species ?

Spec. 2. H y a s

coarctntus.

H. test% uberculatti lateribus coarctatis, processu hastiformi pos-

Habitat i n riiari Uritannico; apucl Frith of Forth, Plymouth

tice valde dilatato inermi.

Sound et Salcombe.

D I V E S 1 0

VI.

Abdomei, in

utroque

sexu

6-articulaturn. Pedes

duo antici di-

dactyli; paria 2,

3, 4 e t 5

consindia, gracillima, simplicia.

Testa

triangularis ant ice rostrata.

A n t e n n a interna in

€ossulis.

sub clypeo receptae.

S U B D I Y I S I O 3.

Oculi retractiles.

Gen. 27.

J N ACHU S ,Fabr.

C A N C E R ,

erbs t ,

P e n n .

M A J A ,

B O S C , atr .

Testa parce spinosa, spin6 utrinque ad latera oculos retractos pro-

tegente.

Ocltli

distantes pedunculo

vix

crassiores.

Pedipalpi

gernini externi

caulis interni articulo srcundo ad

apicem

inter-

num truncato. A n t e m a e x t e rm articulis t r ibus basilaribus

crassiori

bus. Yedurn par secundum sequentibus crassius,

Un-

gues curvati.

Spec.

1.

Inachtiu Dor settem is.

1. rostro

brevi

eimrginato, clypeo infra i n spinam product0

testa



testc‘l antice tubesculis quatuor parvis aqualibus transversia

tlisposi

t i3 : deinde spinis

t r i b u s (antick

dorsali

validiore);

postea

spinis t r i h u s validis acutis

(niedi&. zepius

majore acutiow)

lineam subrecurvam dc.linicntibus, niargitie postico tuberculi8

d

u

obt s 1 istan

i

h

u6 ob s o k is.

Penn.

Bri t . Zool.

iv.

p .

8. p l . i x .

A. .fig.

18.

ancer Dorsettensis.

Cancer Scorpio.

I‘czbr.

Sp.

Ins.

i.

504

,Gmcl

rS:I/st.

N at . i.

2978.

IIet*bst , .

937 , 130.

I n a c h u s

Scorpio.

Fabr. Ei i t . Syst. Sizppl.

558.

3l; lcropi is

Scorpio. Lufr.

i’ist. Nut c/es Crust . cf cles 111s.i 11.

1m

X l a j a S c o r p i o .

I<osc, IJist.

Nut .

des Crust .

Tnaclius Dorsettensjs. L e a c h ,

Edin .

Encycl.

vii . 431.

H u b i t a t

i n

Britaiinix

niari.

- - 9 &falac.Po$oplith.Bri/. t.xxii.f. 1-6.

Spec.

2.

Inncliiis

D o r i ~ t ~c h u s .

I. rostro hastiformi fisso, testa antice spinis tribus t r iangulum

de l in icn t ibus

:

posticii majore

;

deiiide tuberculo utrinquo

;

po-

s

eit t u

i,erc u l s q u

n

q i ie

t

ri

1,

us

rned

ii

s appro s 111ii t s ob u s iori-

bus i n triaiiguluiii

dispositis ponc lateralia et cuin illis liiieam

re rorsu 111 i i r c ~ i a t i i d el t i

ie

11

ti b

us, m argi tie

post

ico t u bercul is

d

uo

11 u s d

is t

antib

us

ohsolet s.

Cancer Plialangium.

Inachus Doryiichus.

Fubr.

Ent .

Sysf.

ii.

4-63,8 i ?

Leach,

l c lh i .

Ericycl.

v i i .

431.

I_ , Maine.

Podophth.

Bri t .

t .

xxii.f. 7,8.



Dr.

L E A C

i's

Arrangement

of

the

Crustacea,

$c.

331

G e n . 28.

R ~ A C R O P ~ D I A .

l \ i l A c RoP u

S

Lat r .

T N A C N U S , Fubr.

M A J A ,

Bosc.

C A N C E R , enn., IIerbsl.

Testu

parce spinosa, rostro lougo fisso. Ociili distantes su breni-

formes pedunculo multa crassiores. iliztennce ezterne corporis

dimidio longiores, art iculo secundo primo triplo longiore. Z'edi-

p l y i

gemini externi

tenues, caule interno biarticulato, articulis

longitudine subzqualibus. Palpi hirsutissimi, articulo inedio

breviore, tertio primo paululum longiore. Ungues 4 antici

ad

apicem arcuati, 4 postici ad basin abrupte curvati.

Spec. 1 . Macropodia

Plhalangium.

R1. rostro acurninato antennis multo breviore, test% pone rostrum

tu berculis duobus triangulum delinientibus : postico majore,

brachiis interne subscabrosis hirsu tis.

Cancer phalangium.

Macropus longirostris.

Macropodia longirostris.

Habit a t i 1 es

t

u ar is

I3

ita n

n

i

~

v u

1

gat ss ne

.

Pem. Brit.

ZZboZ

iv.

Latr.

Gew.

Crust .

c t

Ins .

i.

39.

Leach, Ediii. Encycl. vii.

395.

Zool. Miscell .

ii. 18.

Spec. 2.

ilfacropodin tenuirostris.

11.

rostro longissirno tenui, antennis rostro vix longioribus, testb

pone rostrum tiiberculis duobus spin%queunicA in triangulum

dispositis, brachiis interne spinulosis.

l lnbi ta t in Angliae occidentalis niari profiindo vulgatissirne.

Cfen.

29.

LEPTOPODI-4.

I N A C I Z T S , h .

M A A , .Latr.,

Bosc.

cA N I R ,

fIWbSt.

VOL.

XI.

2

x

Tevtu



D r .

LE

CI I 'S

Arrangement

of

the

Crustacea,

4 c

333

D I V I S I O VIII.

n l b t l u r i ~ e u

( in

ut roque sexu ?) 5-art iculatutn .

T e s t a triangularis

antice rostrata.

Gen .

31.

PACTOLUS,

each.

I N A C I I U S , d r .

?

Testa ha ud spinosa, ro stro longissirno integro.

Yedes

mediocres ;

paria 1 , Z

(e t 3 ?)ung ue s implici ins tructa, p aria 4 e t 5 didactyla.

(Abdomen

FCERIINIE 5-art iculatuni , ar t icu lo pri ino angusto ,

2, 3

e t

4

transverso-linearibus,

5

amplissiriio, subrotundato.)

Spec . 1. Pactolus

Boscii.

P.

rostro utrinque spinuloso, pedibus ciliato-punctatis.

Hubitat

?

M.us. Britain.

An

sit

Yabricii

Ina ch i sag i tt a r ii

sexus

a l te r

?

D I V I S I O

IX

Abdomen

in u t roqu e sexu c luadr ia r t icu la tum.

Antennce externz

minutiss ini~e.Pedipalpi

gerniui esterizi

cau le in te rno acum inato .

C e n .

32. L E U C O S I A ~ .

L E U C O S I A ,

Fubr., Lair . ,

uosc.

C A N C E R ,Lim., Herbst,

&font.

Testa ro tund ata a u t rhon ibo ida l is an t ice subprod ucta . Pedipalyi

genlini

e s t e m i

caulis

i n

terni ar t icu lo sec undo s implici .

Pedurn

par anticurn dliis dis tinc te crassius.

O h . 1-Iocgenus

claborandurn.

L Ad hoc gncniis pertinent species indigence Cancer tuberosus Penn. Brit.

Zool.

vol. iv.

et C'nucer

tumefactus,

Montugzi, Trans. Linn. SOC. ol.

ix.

2 x 9 * Pedipni'pi



334

Dr.

LEACH' S

rrnngeinent

qf

the Crtrstacen,

&.

*

Pedipalpi gemini eztelrni

c a d i s

externi articulo secicndo

externe

dila

t a

0.

Spec.

1.

Leucosia anatunz.

Herbs t ,

i . 93.

t ab .

ii.

jig.

19.ancer anatum.

%*

Pe dip alp i gemi ni est ern i caulis externi artic ulo secicntlo

s u b l i n e a k

Spec.

2 .

Leucosia cmniolflris.

Cancer craiolaris.

I l e rbs t ,

i.

90. t ab .

ii . j g . 17.

Gen.

3%

I X A .

C A N C E R ,

erbs t .

LEU o s A ,

Latre i l l e .

Testa transversissinia, su bcylindrica, multo latior q u a n l longa.

Pedipalpi

gemini externi

caulis interni articulo secundo exca-

vato. Pedum par anticum aliis vix crassius.

Spec.'

1.

Ix a cy l indrus .

I. test% icanaliculatti lateri bus scabris spin& terminat&

Leucosia cylindrus.

L a t r . H i s t .

Nut.

des C rus t . e t des Ins .

vi. 119.

Cancer cylindricus.

H a b i t a t

in

mari Indico.

Herbs t , i.

108.

ab. ;;.Jig.

29.

30.

31. d .

Ordo 11.



Dr.

LE

C

11’s

Arraigemeii t

cf

the

Crustacea,

&.

335

Ordo 11. ~ ~ A C R O U R A .

This order contains

t h e

families P q i i r i i , Palinurini, Asfacini ,

and Sqetillnres of Latreille.

S Y N O P S I S G E N E R U M .

A.

Cauda utrinque appendiczdis simplicibus nec nd ut ori is nec ol iaceis.

DIVISIO .

Pedes

10,

pari antico majore didactylo.

Genera.

1. PAGTJRTJS.

2.

BIRGUS.

Abdomen membranaceuni ; auda triart iculata.

Abdomen crustaceum

;

auda biarticulata.

B.

Cauda utrinque appendicibus oliaceiv, pinn amj abe llro rm em effor-

a. An te nn a inlcriores pedunndis

longissimis.

DIVISIO1. Antennae exteriores squamiformes. Pedes

10

consimiles,

rnan t ihs .

simplices.

Pedes pos tici tars o infra

in

indicem producto.

nas exteriores inserti, haud marginales.

Pedes postici tarso simplici.

serti.

Oculi pone anten-

3. SCYLLARUG.

Oculi

ad

thoracis angulos anticos in- 4.

THENUS.

DIVISIO

11. Antennae exte riores setaceae, longissimae. Ped es 10 5.

I’ALIXWJRUS.

Divrsro

IV. Anteniiae exteriores setaceae longissima. Pedes 10, pari

Pedipalpi gemini externi caulis interni articulo primo interne dila-

Pedipalpi gemini exteriii caulis interni articulo primo simplici. Testa

consiniiles, simplices.

3IlticO didactylo, pari quin to spur io-

tato. Tes ta orbiculato-rjuadrata.

ovata.

6. PORCRLLANA.

7. GALA THE^.

b. An te nn a interiores pe d un di s mediocrilrus.

Dlvlsro V .

Caud a lamell$ exteriore simplici. Antennae in eadem

line& horizontali insertae, interiores setis duabus, exteriores sim-

plices. Pedes

10.

Pedes duo antici didactyli pollice abbreviato.

Pedes quatuor antici didactyli, pari te rtio monodactylo.

Pedes quatu or antici didactyli, pari tert io simplici.

S. GEBIA.

9.

CALLIANASSA,

10.

Axrus.

Dlvls lo VI.

Caud a lamellb exteriore bipartith. Antennae in eadem

lin el horizon tali insertae, interio res setis duabus, exteriores pe-

dunculi



D r .

L E A C H ’ S

rrangement

of

the

Crustacea,

c .

337

Ordo

11. M A C R O U R A .

D I V I S I O I .

Cauda

utrinque appendiculata, appendiculis nec foliaceis

n c c

Pedes 10, par anticum inajus didactylum ; pariaatatoriis.

2 et 3 ungue valido instructa.

Gen. 1. P A G U R U S ,d r . ,

Lcrtr.,

4 c .

GANCER ,

Linn . , Gmel .

A S T A C U S ,Y e n n .

Aiitenizce

articulo secundo

ad

apicem

sup r a spinA niobili

instructo.

Abdomen njembranaceum. Cauda triarticulata crustacea, arti-

culo secundo utrinque appendiculato.

Pedes

quatuor postici

spurii, breves, didactyli.

Spec.

1 . Pagurtts Bernlinrclus.

Pagurus Bernhardus

auctorum.

Gen. 2. B I R G U S ,

P A G U R U S ,abr.

C A N C E R ,

Linn .

Antenna

articulo secundo cristato.

Abdomen

crustaceum, C w d a

biarticulata crustacea, articulo primo utrinque appendiculato.

Peduila

par

quartuin didacty um

;

par quintum (didactylurn ?).

Spec.

1.

Birgris

Latro.

B.

testh antice

rostro

acuminato simplici.

Cancer Latro.

Cancer

(as tncus)

Latro.

Herbs t ,

ii.

34. tab. xxiv.

Pagurus Latro.

L h n .

Syst.

Arat.. 1049.

Lntr.

Gen.

Crust. e t Ins.

i.

46.

D I V I S L O



335

Dr.

L E

C

TI ’ S

Arrangement

n f

the

Crtrsirrcen,

&.

D I V I S I O 11.

Cauda utrinque lainellis duabus foliaceis pinnani flabelliformem

efformantibus. Oculi distantes. A n te iz m ii iteriores peduiiculis

longissimis ; steriores squamiforines. Pedes decem consiiniles

ungue simplici instructi.

Gen. 3.

SCPLLARUS,abr., Latr . , &.

C A N C E R ,

Linn.

Pedes

postici tarso infra in pollicem producto. Tf i oras

convexus,

su

blinearis. OcuZi pone antennas exteriores inserti.

Spec. 1 .

Scyllarus arctus.

L n t r .

G e n .

Crust . e t Iiis. i .

47.

Cancer arctus.

Scyllarus arctus.

Linn.S’st. N o t . 1053.

Gen. 4. T H E N U S .

Pedes postici tarsis aliis consimilibus. Thorax subdcpressus

an-

tice latior.

Oculi

ad

tlioracis angulos anticos inserti.

Spec. I. Thenus Indicus.

T.

antennis serratis, thorace granulato cariliato trispinoso,

ab-

Habi ta t

in niari Indico.

domine granulato : granulis transversiin digestis.

D I V I S I O 111.

Cauda

utrinque lamellis duabus foliaceis flabellurn eff‘ornian ibus.

Antennce interiores

pedunculis lon-

Pecks decein consi-

O c d i

basi approximati.

gissitnis ; xterioves setaceae, longissimx.

miles, ungue siinplici instructi.

Gea. 5.



Dr.

LEACH’S

rrangement

of

ihe

Crustacea,

c.

339

Gen. 5. PALINURUS,ald., Fabr., $c.

CANCER,

Linn.

ASTACs,

Pennant.

Spec. 1. Pnlinurzts

Hornarus.

Astacus homarus.

Pennant, Br i t . Zool. iv.

D I V I S I O

IV.

Cazicla

utrinque lamellis

duabus

foliaceis

Aabellum efformantibus.

An telin& interiores pedunculo longissirno

;

xteriores longissimae,

setacex.

P e c k s

decem ; par

anticum

majus

didactyluni

:

par

quintum spuriuin.

G en.

6.

PORCELLANA,

am., Latr. ,

BOSC,

c.

CANCER,

inn.

PedipaZpi

gemini externi caulis in terni articulo primo interne dila-

t a t a Testa orhiculato-subquadrata

Spec. I.

Yorcellana

platycheles.

Cancer platycheles.

Porcellana platycheles.

Yennai i t, B r i t . Zool.

iv.

6.p l . 6. and

12.

Latr . Gen.

Crust.

et Ins. i.

49.

Gen. 7.

G A L A T I I E A ,abr.,

Latr. ,

&c.

C A N C E R , inn.

AST c s, P e n

nai l

t.

I’edipaZpigei~ziiiz’

.z.fer.ni

caulis

interni articuh

prinio

interne haud

dilatato. Testa ovata.

*

rLostrii?a

t i c i iminutzu~ , c i i tu in ,

ut rin qw 4-spinosum.

Pedes antici

compressi.

Abdonieii

segmentis luteraliter obtusis.

Cauda lame112

in le imedid triangzdari apice emarginata laciniis apice rotundatis.

Antet ine

iiiteriores ped unculi articulo primo trispinoso.

V O t . XI. 2 Y

a. Pedi-



340

Dr.

LEACH'S

rrangement

of

the

Crustacea,

(5.c.

a. Pedipalpi gemini exte rni caulis interni articulo secuiido primo longiore.

Spec. I. Gakrthen

s q t i r im i jk w .

G .

pedibus anticis graiiulato-squaniosis, iiiaiiibus externe carpis

Cancer

(astaczrs) s q

u a

m i

fer.

Galatliea

squani i fera.

L c ~ i c l i ,

clin.

Encycl. vii. 39s.

I I d i t a t

in

A i i g l k

occidcn talis inari vulgatissi~ne.

brachiisque interne spinosis.

Mo i i t

agii,

JJss.

-- ,M a l a c .

Podophth.

Bri t .

tab.

xxviii.

A.

Spec. 2.

Gakitheu Fabricii,

G . pedibus anticis gr.anulato-squamosis, m an i b u s estctriie sub-

serratis,

carpis

brachiisque iiitcrnis spinosis.

Habitat

M U ~ .rit.

sq uamijera.

T h e fingers of

tlic

fore-feet are more bent than

in

Galathen

b .

Pedipalpi gemini ex terni caulis interni articulo primo secund o longiore.

Spec.

3.

Galatiien spinigcr~i.

0 .

pedibus anticis subgl .anulato-sclunmosis

supra

et utriiique spi-

Astacus strigosus-f-.

nosis, brachiis externe i n e r m i b u s .

Pcnn.

Brit.

2001 . iv. 18. pE.

14.

H e i - b s t ,

tub. s s v i . j ig.

2.

?. Alia

el distincta

species

est Cancer slrigoszis

LinntPi, 211 hmc

indicant u e r h .

''Tho-

r a s

obovatus margiiie utrinque spinis octo aeuminatis a n t r o r > um porrectis ciliatis, dorao

rugis iiunierosis antrorsum iiiihricatis. Cl iel z oblongae, de pre s i s , ninrgine aciileatae, supra

scabrc, subtus

quasi scliianiosE; pedes apice rubri."- Fn. Sv.

036.

''

Brnch ia introrsum

aculeata

; l ielz oblongae, margiiie aculea tz, latere superiore

antrorsuin

imbr icata scaliritie

ci1inri. -Syst.

Nit.

1053.

G

i\ 1 1 t 11C i t



Galathea strigosa.

Fob,.. Eiit. Syst. ii. 471.-Suppk.

414.

La t r . G e n .

Crust.

e t I n s . i . 49.

L e a c h ,

Eclin. Encjcl.

vii.

398.

,Malac . Podophtii. Brit. t.

xxviii .

B.

Hubitat

in mar i Europxo vu lga te .

*

Rostrum

elongat

um spiniforme, basi ntrinque bispiiaoso.

Pedcs

antici

siibcylinch*ici.

,.dbdornen

segmentis late?*alite?*cutis. Caiicla

lainelld intemeclid

transverso-quaclratd apice

subemarginatd.

An-

t e m e i nt eri ore s

peclunculi articulo primo

-spinoso.

(Pedipalyi

gemini e ,c t e tx i

cwulis

i i i t e r i i i urticrrlo pr imo secunclo longiore.)

Spec .

4.

Gulatliea rugosa.

G. pedibus ant icis in trorsum prz ser t im spinosis, ahd om ine

seg-

Astacus

Bamffius. Penn. Brit . 2’001.

iv. t.

27.

Ga lathea rugosa.

Fabr.

Siqip.

Brit. Syst.

415.

Uosc ,

I l i s t . A-at.

clcs

Crust.

La tr . I l i s t .

\ ( i t . cles

Crust. e t cles Ins.

v i .

199.2.

r i iento secundo ant ice

6-

tertio 4-spinosis.

Cancer

rugosus.

Gi i i c l .

S’st.

Xut.

Calatliea longipeda.

Gal a t h ea Eanifia. f m d i , Erlin.

Eticycl.

v i i . 398.

Gal a t h ea rugoja. L e a c h , Mul ac . firitan. tub. xxix .

f-lubitctt i n i n a r i b u s Eul-opi-coct Rteditcrraneo.

I . a m Syst.

cles

A I I ~ M .

iins Vert .

15s.

D I V I S I O V.

Cacida u

r i n q u e

laniellis

tluabas

foliaccis

f l sbc l lum

efformanti

bus,

lamellii estcriorc siiiii)Iici. i lnteiince i n e t d cn i fere lineA hori-

zontali i n s c r t x

;

i n t e r i o i ~ s etis

duabi is

; ezteriores

siriiplices.

P e

lcs

de

c

e

111.

A ninialia su bterranea, pedihus

variis

saepissiine spuriis,

C O I I I -

2 Y 2 Cen. 8.

pressi s.



Spec.

1 . Calliaiiassa subferranea.

C.

processu rostriformi unicarinato apice rotundato.

Canccr (astacus) subterraneus.

Callianassa

su

bterranea.

Habitnt s u b

aren% d littora iiiaris ; n Danmoniti australi Iiaud

Cen.

10.

ASIUS.

Moontap , Lim. Trails. is.

.Leach,

Eth. Elicycl. vii.

400.

va 1d c iii frc 1u e n s.

dipa

p

ae 1u a1

lari.

A.

rostro

Pedes q m t u o r antici tlidactyli

;

a r

a?itic:iim

majus subinaequale ;

ynriu

S,4

et

5

coinpressa, ungue compresso instructa . Aiitenvza

in er o r es

p

ed u 11

cu lo t

r ar

c

u 1

at

0

art c

u 1o

pr

ino 1

o n g

ore.

Ye-

geniini

ext twii

articulis d u o b u s priinis s~blongioribus,

)us . Cazida lata , IaoiellR intcrmedih elongato-triangu-

Spec. 1 . Axius Stirynchus.

marginato medio carinato, thorace pone rostrum lineis

Habita t

in Danmonia: mari rarihs ;

apud

Sidmouth et prope

Ply-

d

u a h u s

elewtis

ab

breviatis postick eiilarginato.

niou t i his ohvius.

D I V I S I O VI.

Coircln utrinque

l amel l i s

dua bus foliaceis

flabellum

efhrmantibus,

IamellS, esteriore bipartits.

Antenvie

in e h d e m fere lineti Inori-

zontali inscrtx

;

interiores

setis

duabus

;

exteriores

pedunculo

articulo priruo a d apicern squaiiiA acu tQ iistructo.

I'etles

de-

cem, par anticutn i n o m n i b u s I I I ~ ~ I I S ,nwlua lc, <lidactylutn.

Ge n . 11.

Asr rAcus ,

F d r . , (fc.

Q c d i suhglobosi pedunculo l iaud crassiores.

.4nfci i , ice

e,zteriorzs

ped

u

n

c

u

1

i

a r t

c

u

1o

p

ri m

o s

q

11

a

in

A s

pi

n

form

i

ad

pc

d

ii

n

c

u

1

a

1)

i-

cern

h a u d

attingente.

I'edurn

c o re paris t er t i i

I.'(ZJI

I h - z ,

N A R I S quinti paris perforatz.

'* rf tdouiiiic



344

Dr.

LEA C H ’S

rrangement

of

the

Crustnoeu,

8 c

* Abdomine segmentovum

lateribus obtusis.

Spec. 1 .

Astacrts

Gnmmarus.

Liiin. Syst. N u t . i . 1050.

Penn. Brit. Zool. iv.

Fabr. Suppl. Ent .

Syst. 406.

Latr .

Gen. Crust . et Im. i. 51.

Cancer Gam m aru s .

As tacus Gammarus .

Astacus marinus.

**

Abclomine segineiitorunz lateribus acut is.

Spec .

2.

A s t a c w

Jai iv id i l i s .

Liian. Syst. Nut. i .

1051.

Penn . Brit.

Xool.

iv.

Cancer astacus.

Astacus as tacus .

Astacus fluviatil is .

Fnbr. Sirppl. E n t . Sy t .

406.

Latr. Gen. Critst. et

h i s . i, 51.

Gen. 12 .

hTxprl

1 ~ 0 1 ~ s .

A S T A C U S ,ubr.,

&.

Oculi

ren i fom cs , peduncu lo abr up t e e t n iu lto c rassiores .

dntenrircc

esteriorcs

peduncu l i a r t i cu lo p r imo

sqnandi

ultra pctlunculi

apiceni

prodcunte.

Pedii in

co.z’a

F ~ : B I I N I L

aris

tertii,

M A R I S

par is qu in t i per fo ra tz .

Sp

:

c. 1.

A-ep

It

r o p Nor

v

cg c

i s .

Ca ncer n’orwcgicus.

Astacus Xorwcgicus .

Neplirops Sorvegicus.

L i i i i i .

Syst.

3

crt. i.

1055.

~ ’ c ~ I L .

r i t . Z o o l . i v .

Lurch, Etlin. E~licycl. ii.

D I V I S I O

VII.

Ca udci u t ‘

i 11

1 u e

1

a

11

cl is

t

1 11abu s fol

a

c e s A abell

u

ni eRor 11 1 ant i

ti

us.

AbcIonien

art i -

Pecks dccew.

rlnteniice

e~

tcriorcs

SquiiniA

niagn2 ad basin .

culo

sccuiiclo

iiifern2:

a n t i c k e t pos t icb producto .

S U B D K V I S I O



D r .

LEACH’S

iu.nngenierit

o f t h e

Crustacea,

&.

345

S U B D I V I S I O 1.

Antenne esteriores

infra inferiores insert=

;

hteriores

setis

2

in

ea de ni IineA horizon tali inser t=.

Cauda

lamell$ exteriore

bi-

partitA.

G e n . 13. A T Y S .

Peclcs

q u a t u o r an t i c i z q u a l e s , art iculo ul t imo

fisso ; par

tertiunz

niajus, inrequale, adac tyluni , ungu e s in iplici ins tructuni ; ariir

4 et 5

siniplicia, ungue siruplici terminata.

Cauda

la ta ,

la-

m el k i n te rm ed ia ap i ce s u b acu m i n a t a , ro tu n d a t &

Sp ec .

1.

A t y s

scuber.

A.

rostro carinato t r i f ido:

dentc medio longiorc, pedibi is

sex

Habi ta t

M u s . Britann.

013s.

po

s c

s

s

cabr

is,

Pedes q u a t u o r an t i ci a r t i cu l o fisso pilosissimo.

S U T Z D I V I S I O

2.

Anteiziice

i n e& d em fere

l ine&

horizontali insert=

: interiores setis

d u a b u s

i n

e%dem l ine2 horizontal i.

Caudu

lamell8 exteriore

i in ipart i A .

AS T ACUS , em.

C A N C E R ,

Linn.

I’edmi par an t i c

u

m m

i

s,

i i i

a n

u

coni pressa

in

onod ac y A

a u

e

i r id ice spurio ins truct& paria 2

ct

3 tenuiora, d i n simplicia,

u n g u e terni inata ; par ia 4 t

5

subrobust iora.

Gen . 14.

C R A N G O N ,a h . , Latr . , cfc.

Spec .

1. Crangon uulgaris.

C .

thorace

pone

rostrum e t u tr inq ue unispinoso.

Cancer



346 Dr.

L E A 11'sArrmigei~iei i t

f

the Crustacea,

&c.

Ca nce r crangoi i . Lilt?&.yst. N a t . i . 1052.

Astac us c rangon .

Peitnurlt, Brit. Zool. iv.

Cran gon vulgaris.

Fubr.,

Lrrtr., Bosc.

Leach, Edin. E i i c p l . y l .

921.

j ig.

5.

H u b i t n t in O ceano Europzeo vulgaris .

Spec .

2.

Crangon

sppirmus.

C.

thorace t r i car ina to : car inis trispinosis.

Hubi tu t

in Danmoni;le au str ali rnari.

semel observavi t Don]. C. P r ide a us .

M u s . No s t r .

Apud

Plymouth Sound

S D O D I V I S I O 3.

A n t e i t m

exteriores infra inferiores insert=

;

nteriores setis

duabus

una

super aliam insert$.

Caiictn

lamell& este riore unipart i t l.

* Palpi p e d i j b m c s npice spinulosi.

A Ldonieti

segnwiito tertio

supra

A n t e r i m interiores setd superiore infra escua-

ibboso proclzicto.

vntd.

Uizgues

spin ttlosi.

C e n .

15.

PANDALUS.

Peduin par

an t i cu m ad ac t y l u m ; par secunduin didactylum, in-

P a & pedif'oi*itiesar t icu lo ul tiiiio p cnu ltiino longinre.

quale.

Spec. I .

Paiidnlrrs

unmrlicorii is.

P. rostro niul t ic- leotato ascendente apice emarginato , antennis

Pan

d a1us a n

n

11 1 corn is.

Leuch, i l lu

t r

c. I'odoph t I t .

I it

. ub. xl.

Habitcit

in rnari Britannico.

infer is

1-11bro

annu la t i s in te rn&

spinulosis.

D c t e s i t D.

J.

Pleining.

G e n . 16. H 1 y P P o L w E .

Pedes

quatuo r an t ic i d idac ty li .

penu l ti 1110niul to b r e v i ~ r e .

Polpi pedijbritics ar t icu lo

u1tiir;o

Spec.

1.



348

Dr.

LEA C H ’S

r rangement

of

the

Crustacecr,

&c.

S U B D I V I S I O

4.

Antenna

esteriores

infra

in teriores insertse ; izteriores setis trihus.

Cui ida lamell%exteriore unipartitA.

Gen. 19.

PALAZMON,

cibr., L a t r . , cfc.

A S TA C LTS ,

e n n .

C A N C E E , im.

Pedes

quatuor antici didactyli,

pari

antico minorc.

Palpi

pedi-

formes artic ulo u

1

im o penul tirno breviore.

Spec. 1.

Pal&mon

serratus.

P. rostro ascendente supra 6- 7- aut 8-dentato apice emargi-

Astacus ser ra tus .

Pal~enion

quilla. Latr . G e n . Crust. e t Insect . i.

54.

Habitat i n Mari Britannico.

nato

;

nfra 4- 5- vel 6-dentato.

Peiin. B d . 2‘001.

iv. 19.

p l . 16. Ji3” 28.

Spec.

2.

Palamon

Squilla.

P.

rostro recto apice emarginato

s u p r a

7-

aut

8-

infra

2-

vel

3-dentato.

Cancer Squilla.

U a b i t a t ciini przcedente i n Daniiioniii australi vulgate.

L i n n e u s , in the second edition of Fauna

Szcecicu,

thus describes

the above species :

“

Thorace l s e v i rostro supra serrato ;

s u b t u s

3-d

en

tat0 , man u u

m

d i

g

is it‘

q iia1i

h ii

s

. -‘ ‘ llos

u i n 1a

ncco a tu n

perpendiciilare, acutum,

s u p r a

octo-crenis, infra tri

bus sc r r a tu in

;

inanus, quze tertio pedum pari insident, digitis suut

q u a l i b u s . ”

In the

last

edition

of Systeinn

N u t r i m

tliis

cliaracter

is

again

re-

peated ; and :is it

appl icb

csactly tc; tlic most freqi‘ent variety

of

this species,

tlicrc

caiiiwt Ix llie

least

doubt a 5 to the correct-

Liiin

Syst.

Nat . i.

1051.

ness



ncss

of the quotation. I may observe (although I scarcely coil-

ceiw

it to be

nccessary) that

when

Linnzeus made use

of

the

term “ the fiiigcrs

of the third pair

of

feet” in the above charac-

ter, he included the pediforin palpi as a pair of feet. Unless the

Iar~guage

be faiui l iar to

the reader,

lie

inight conceive that

the

Liniieaii species wa s not cven rcferable to this genus, as the two

in ter ior pair

of

f ke t

only have

fingers.

Spec. 3. Yoiizrnoi cariaiis.

1’.

rostro

recto supra

4-

5- aut 6-dentuto apice iiitegro; infra

IInbiln

t i

n

Da

17 111on z N o r fo c

2

a 1a ri v u Ig

a

ss ni

e.

bidentato.

A n sit llstacus

Syuilla Pennant?

Gen. 20.

A T H A N A S .

P e c k s quatuor antici

didactyli,

pari antico majore.

Palpi pedi-

fornzes

articulo ul t i rno

p e n u l t i m o

longiore.

Spec. 1.

Athanas

nitesceiis.

A .

rostro recto inermi.

Cancer astacus) nitescens. M o n t a g 2 ~ , h .

Hubi ta t

i n

Danmoniae australis mari.

D V

I

S I 0 VI I I .

C‘u

uda

u

rin

q

ue

iai

iiellis

d u

abus

foIiaceis

fla

bef lu rn efforman

ibus.

Antennce exteriores squamil magn$. ad basin.

Pedes

sexdecim.

Gen. 21.

~ U Y S I S ,

atr . ,

Leccch.

C A K C E R ,

t h .

Fabr.

Pits

u

N

u

s,

Leach .

Pedes

bifidi parium

4

anticorum articulo ultimo lacin& interiore

uniarticulato,

ovato,

compresso, pedum aliorum multiarticu-

2 2 2 lato.



350

Dr.

L E A C

L' S

Arrangement

of

the Crustacea.,

&.

iato.

primo brevissimo.

Pa l p i p e d ifo r mes %articulati, articulo Iiiedio longiore,

A d

fEmi?ice

abdominis basin

est titerus esterrius

e

meinbranis

duobus

concavis

valvulijornzibus

e fo r ma tu s , quo

y d l i

nzcpcr e s o v o erclusi

vivunt, crescuiit.

* Cat&

lamelld

intermedid eiirargiilntd.

Spec.

1.

ilfpsis

spiiiiclosus.

M. caudd lamell& nternledid externe spinulosA apice acutP einar-

Praunus flexuosus.

Le a c h , Ed in . En c y c l .

vi i .

401.

H a b i t a t in mari Scotico apud the Frith of Forth.

ginat$ : lamellis exterioribus acuminutis latissime ciliatis.

Spec.

2.

Mysis

Fahricii.

31. caudd lamellA intermedig apice obtusk emarginata : lamellis

Habitat in mari Graenlandico.

exterioribus apice rotundatis.

**

Cnucla

lamell& ntermedid i iz tegrd.

Spec. 3. Bfyois

in teger .

Praunus integer.

Leach,

Ecliii. Encycl. vii.

401.

H a b i t a t

apud Loch Ranza in Arran insulil., freyuentissime.

Length one-third of an inch. Coloiir pellucid cinereous spotted

with black and reddish-brown. Eye s black. Females more abun-

dant than the males.

A t

low

tide near Loch Itanza the pools were full of this

spc-

cies, swimming with its head uppermost and its eyes spread;

making

a most

grotesque

appearance.

DIVISIO



D I V I S I O IX.

C a u d a

sctis

dua bus te rn iina ta .

Pecles

duodecini .

G e n .

22. K E B A L I A .

M P S L S ,

Lutr.

M

s c u

L

c:

s, Ill

ontc1gn.

C A N C E R ,

t h . Fuhr. , Tlerbst.

TJioivs

a n

tice

rostro mobi l i instructus.

Pedim

par ariticuni

101;-

gius,

sitnplcs

;

paria

alia

q u a l i a ,

approsimata,

ar t icu lv

u l t i -

nio

bifido. Anteillice

c l t i i ~ '

upra

oculos

inser t=, articulo ult i -

rno bi

fi

d0 II u

1

i it

r

t i

c

u

1 a t

0

Spec. 1 . Nebalia Herbstii.

0 t h .

Fubr.

Gram. no. 223. j g . 2.

H e r b s t , ii. t a b . x x iv . j g . 7.

N . grisca

a u t

cinereo-flavicans, oculis nigris.

Cancer bipes.

Alonoculus

rostratus.

Nebalia

klerhstii.

€labitat

i n

oceaim

Europzo.

M o i i t . T r m s .

Liwz. SOC.i . 14. tab. i i .

f i 5 .

J,cuch,

Xool.

U i ~ c r l . .

100. t r d .

44.

Legio 11.



Legio

IT

E D R I

0 P H

T II A L ’i\iA .

J,atrcille considered the

a n i m a l s wliicli compose

the first atid

part

of the

second section of

this

Legion

:is

it

fami ly

of the

MA -

C R O L J I ~ A b u t h a d l i e been acquainted wit11 the following new

and

curious

genera,

lie would d o u btlcss Iiavc fornied a very different

opinion.

Genera.

S x m o I . Corpus late ralit er coniprevsuin. Prde s 14. A n t e i i i i e 2 1 . P m o w r n A .

in‘_‘rontern insertcz, unci 7itrinque. (Cuuda s t y h ins lwc ta . )

SECTIOI.

Corpus

lateraliter compressurn. Prdes 1 1 coxis lamelli-

f o r m ; b u s . A n t e m a ? 4 er

puria

insert@. (Cuudu stylis instructu.)

DI VI S I O

.

Aiite nnz 4-articulatae, articulo ultiiiio e segm entis plurimis

Ant eiinz superiores articulis duol)us inferiorum basilaribus breviores.

AntennE superiores articulis

duobus

basilaribus inferioruni haud lon-

A ntennr e 4- a r t i c u la t~ , a rt i cu lo

ultimo

e segmentis plu-

efformato ; superiores brevissima

giores.

DIVISIO1.

rimis efformato

;

superiores subbreviores.

l’edes

4

antici monodactyli, man u parvul; compressh.

D I V I S I O11. A iite iinz 3- a r t i c i i l a t~ ,articulo ultimo e segmciitis plu-

riniis

efforniato

; superiores longiores.

Pedes 4

antici

sul);rcp.~ales

noiiodnct li, tnanu coinpressd.

I’crlum par anticu ni didactylum polliee biarticula to, par secund um

monodactylum.

D I V I S I OV. Antennae . l-articulatz, articulo ultimo e segmentis pluriniis

Snldivirio 1. Pede s quatu or antici tnonotlactyli, pa r secuiiduirl m;uiu

efforinato ; superiores longiores.

valtlk

tlilatatri, corn~pressA.

l’etluni par

seciintluni

&giro in

pnlmam

inflectendo.

l’ctluni

p a r

secuntluiii tligito

i l l

latris

aliticu1i1 inflecten tlum.

Suidivisio

2.

Pedum parin thio znticn liloll oda ct~la oiiforinio.

An tcn nz superiores ad I&ii nrticiili cltiarti wt u li instructre.

2.

TALITRUS.

3.

ORCHESTL4.

4.

ATYLUS.

5 .

DEXAbflh’E.

6 . LEUCOTHOE.

-

d .

MELITA.

8.

MERA.

9. G A M M A R U S .

Anteiiiile



Genera.

Antem= superiores simplices. Manus ovata .

10. AMPITHOE.

Antennae sup erior es simplices.

Manus

filiformes.

11. PHERUSA.

D~vrsroV.

Antennae 4-a rtic ulat 2, inferiores longiores, ped iformes.

(Pedes quatuor antici moiiodacty1i.j

Sul idiuis io 1.

Pedum par secunduin ilianu inagii'i.

Oculi proniinuli.

Oculi

Iiaud

prorniiiuli.

Szilitliuisio 2.

Pedum par secundum m a n u haud

magn2.

(Oculi Iiaud prom inentes.

Antennae inferiores maximze:.)

SECTIO11.

Corpus

deprcsolm. Anrenrire

4 . Pedes 14.

A. Cuiida

iTiermis.

DIVISIO

.

Subdiui3io

1.

Corpus

lineare.

Pedes omnes validi ungu icdati , paria 3

et

4 basi appendiculata.

Pedum paria

3

e t 4 puria.

Subdiyisio

2. Corpus latum.

DIVISIO1.

Corpus

segmentis omnibus haud pedigeris. '

Corpus se gmentis omnibus pedigeris.

12.

P O D O C E R U S .

13.

JASSA.

14. COROPHIUM.

15. PROTO.

16. CAPRBLLA.

17. LARUNDA.

Antennae esteriores articulis tertio quartoque aequalibus.

Aiiteiiim exterio res articu lo tertio qua rto longiore.

Corpus

1 s . IDOTEA.

ora tum.

19.

S T E N O S O M A .

B. Cauda lamelki I u u t 2 utrinque

inslructa.

Drvrsro 111.

Antennae in eidem fere linei horizootali insert*.

Antennae inter iores sublongiores. Ped es 2 antici submoiiodactyli. 20. ANTHURA.

D ~ V I S I O

F'.

Stllrdivisio 1.

Aiitennae per paria uiio super alium positae.

Cauda laniell,i unic.1 utrinque.

Cauda appendice curvato, coinpresro.

21. CAMPECOPrEA.

Cau da appeitdice recto, subconiprcCbo.

Cauda

lainellis 2 utrinque.

22. N r ~ s ~ .

Sllbdiuisio

2 .

*

Ante

1

lice stipei

iot es

petlzi icii

lo u

niplissimo.

Caudrt

emargiiiata in teijecti

IamellA,

appendicibus

haud

foliaceis.

Cauda

eniarginata, appeudicibu s comp res4s foliaceis.

Cauda

i s

egra, appe ndic ibus compressis foliaceis.

Uiipes liijidi.

23.

CYMODICE.

24.

DYNAMEBE.

25,

S PH XRO MA.

**

Aii lenno



354

Dr.

LEACH'S

wwitgertierrt

of

the

Crrrstacta,

4 c

**

A n t e n n a siiperiores pedunciilo amplissimo. Utigues simplices.

Genera.

Oculi granulati, magni, laterales. 26.

BGA.

*** A n t e n n a superiores pedunculo mediocri.

Oculi distincti, non granulati. Cap ut segmenti corporis aritici lati- 27. EURYDICB.

Ocuii granulati . Capu t segmenti corporis antici latitudine.

28. LIMNORIA.

Oculi obscuri. Cap ut segment0 corporis antico angustius.

29.

CYMOTHOA.

tudine.

C. Cauda setis h a h i s terminata.

DIVISIO

.

- 30. APSEUDES.

- - -

D.

Cauda

styLy

era.

DIVISIO

I.

Antennce interiores distinct=.

SuZdivisio 1.

Sty li caud ales exserti. I'edes a ntic i mono dactyli.

Uiigues bifidi. 31 .

JAN IRA .

Ungues simplices.

3

2.

AS

ELLUS.

Sulldivisio 2. Styli caudales hau d esserti. Pedes antici simplices. 33.

JBRA .

DIVISIOII.

Subdivisio

1.

Antennaz interiores haud diztinctae.

Styli caudales bini, caule duplici.

Styli

caudales

quatuor, lateralibu s biarticulatis.

Antennae articulo ultimo multiarticulato.

34.

LIGIA.

Subdivisio 2.

*

Corpus

in

globurn haud

contractendurn.

a. A n t e n n E externe articulis octo.

Antennae e xte rnz basi

nudaz.

Caudn abrupte corpore angustior. 35. PHILOSCIA.

Aiiteniw es te rn z sub capitis niargirie antico insert=.

Antennae exteriiae sub capitis margine antico insertae.

Antennae edernae 7-art iculatq in capitis cavitate marginibus in- 38. ARMADILLO.

36.

0~isr;us.

37. PORCULIO.

b. An te nn a extel-na? w l i c u l i s septem.

** Corpus

in

globum contraclile.

scrtz .

S E C ' l ' I O

I.

Corpiis

lateraliter

conipre~s~i t~i .

e d e s 14.

dirteniice 2

i n fron-

tern insertis, unci u t r i n q u e .

(Cauda

stylis

instructa.)

Gen.

1.



Dr.

L E A C I I ' S

rrangement

of

the Crustacea,

&.

3.j.5

Cen.

I .

P H R O N I M A ,a t r .

Caput

magnum, n u tans

;

ant enna biarticulatae, articulo prinio

parvo.

Thorax

7-articulatus, segmentis omnibus pedigeris.

Pedes compressi ; paria duo antica articulo antepenultimo

a d

apicem processu foliaceo instructa ; articulo penultimo apice

bifido, ungue niiriuto tcmiiinato

:

paria

3

ct

4

simplicia longiora,

subcrassiora ungue arcuato t.erininata : par quintum magnum

1ongiss 111u m , crass us, d

ic1

ac y 1u

111,

ar ticu lo pri111o ad ap cein

gradatini subincrassato

;

secundo subtrigono

;

tertio ovato

ad

basin subahrupte angustato ; ultinio acl basin angustato digi-

tis curvatis interne unidentatis ;

paria. 6

et

7

simplicia, uiigue

su brecto termina ta.

A bdornen

triarticulatum, seginento

si

ngulo

utrinque a ppendice duplici pedunculo insistente instructo.

C n u d a biarticulata ; rticulo

prirno

infra utrinque processu bi-

articulato stylis duobus terminilto ; articulo secundo processi-

bus quatuor stylis duobus instructis, processu inferiore biarti-

culato, superiore triarticulato.

Spec.

1.

Phroiziiiiu

sedentaria.

€'.perlibus quintis pollice apice indiceque basi internedenticulatis.

Phronima sedentaria.

Cancer

ganimarellrts

serlcntarius.

Cancer sedentarius.

ming, qui summA cum henipnitate rnihi communicavit.

L a t r . G e n . Crust. et Insect . i, 57.

Leach , E d i n . E ncyc l .

vii. 403-433.

Herbs t , ii. 136. tab . 37.

ig.

8.

Forsk.

Fn. A r a b .

95.

Apud Burray in ZetlandiA, Nov. 3,

1809,

detexit Rev. Dr. Fle-

S E C T 1 0

11.

Corpzts

lateralikr compressum. Cauda stylis plurimis. Pedes

quatuordecini ; coxa lamelliforines. Antennce quatuor per paria

insertae.

VOL.

XI. 3 A

D I V I S I O



356

Dr.

L E ACH’S

rrangement

of

the Crustacea,

4 c .

D I V I S I O I .

rl1iteni2a

&a rt icu la tx , a r t i cu lo u l t imo

e

plurim is segm entis minutis

efformato ;

superiores

breviss imz, infcriorum pedunculo bre-

viores.

Gen.

2.

TALITRUS

ntr., Bosc.

Pedes q u a t u o r

an t ic i in u t roqu e sexu

s u

tmqualcs ,

monodactyli.

Antenna superiores articulis

d u o b u s

inf‘erioruln hasilaribu s bre-

viores.

Spec .

1. T a l i t r ~ s

ocus tu .

T.

antennis snbtestaceo-rufis maris corpore longioribus

foeminae

Oniscus Locus ta .

Y n l l a s

?

Tal i t rus Locus ta .

C an ce r g a r m a r i t s saltator.

Astacus Locusta.

H a b i t a t in arenosis maritimis passim.

brevioribus , corpore cinereo : colore saturat iore vario.

L a t r .

Gen. Crust. e t

Insec t . i .

58.

LeacJt,

Edin. Encycl . vii.

402.

Perm. Brit. Zool. iv. 21.

J fo n ta g u ,

Trans. Lima.

SOC.

x.

94.

Talitrus l i t toralis, L e a c h ,

Edin.

Eizcycl.

vii. 401. cemina.

Gc n .

3.

O R C I I E S T I A .

T A L I TU S ,

.LLatr.

Pedztiiz

par ia qua tuo r an tica .

N A R I S

monodacty la , par i secundo

manu coniprcssii magnli ;

FU C N IN X

pari ant ico nionodactylo ,

sec

und

o

did

ac y lo.

d

I tenit

ce

su

periores

art iculis d

uob

u s

hasi-

1a

ri

11 ii

s i II fkr or

u

tn h

au

d

1on

giores.

Spec. 1 .

Orclirstia littoreri.

ca nc er ( li tto reus )

G a i ? i ~ ~ m r u s .

P u l c s

niar inus .

‘l’alitrus ganitnarcllus.

Orchestin li t torea.

l f o h i t a t

ad

l i t tora

niaris pass im,

rejectanientis, cadaveribus victi-

&g cn tn g zi , l ’ r n ~ i s .Linn. soc . is.

96.

Lhst . Opztsc. subs .

ii.

31 2

Lntr .

G e n .

Crus t .

e t

I t i s .

i.

57

?

. Le td l ,

Edln,

Encycl.

vii. 402.

ta 1

s.

1)I

v I S 0



D I V I S I O

11.

Aiitenim

quadriarticulatE, articulo ultimo e segmentis

pluriinis

a1i

is

d

is

t in c s eAio rin ato

;

s peri ori

h

1s s

u

b brev io b u

s

.

Gen. 4. A T E - L U S .

Anteiiiza superiores articulo secundo tertio longiore ; qfwiores

a

ticulo secundo tertio subbreviore. Oczili snbproniinentes, ro-

tundati, inter antennas

i n

capi tis processurn utrinque inserti.

Cartdn

utrinque stylis duplicibus tribus, et supcrne stylulo

utrin-

que

niobil i

instructa.

OBS.

Gcneri Dexamini

valtle

aiXne est

lioc

genus.

Spcc. 1. A t y h

curinatus .

A .

capite rostro descendente, abdorninc segmentis quinque iilti-

Gamrnarus carinatus.

Atylus carinatus.

Habi ta t

Mus.

Rritan.

mis carinatis posticeque acu te productis.

Fabt..

Ent .

Syst. ii. 515.

3.

Leach, Zool.

nil iscell. ii.

22.

tab. 69.

D I V I S I O

111.

Antciina triarticula tx, articulo ultimo e plurimis aliis distinctis

conf'ecto, superioribus longiori

bus.

G e n . 5.

DBXAMINE.

Y e d e s

qua tuor antici subaequales, monodactyli,

manu

compress%

filifornii-subovat A, armati. Antema: segment0 primo secundo

hreviore.

Ocrili

oblongi, haud prominentes,

pone

antennas su-

pcriores inserti. Cnt ic lu utrinyue stylis duplicibus tribus, super-

I q u e stylo utrinque mobili instructa.

3 n 2 Spec. 1.



358

Dr.

L E A c I r ’ s

Arrangement

of‘

t he

Criistacect,

4 c .

Spec.

1.

Desamine spinosa.

D.

segmentis ahdotninis posticis in spinis productis.

Cancer Gaminartis spinosus.

Dexaniine spinosa.

Habitat

i n Angliae

occidentali niari rarior.

Montagu, I h 1 .

T r a m z d . xi. 3.

LeacJr, Edin. Encycl. v i i . 433.

--, z o o l . fiIisceEl.

ii.

24.

Gen. G . L E U C O T I I ~ ~ K .

I’edum par an ti cum

d i 1

ac gl

u ni, pollice lt

iart

iculato, a r t u l o

h i -

lari subovato

;

par secundum inanu

d i l a t a t h ,

compress&,

o l l i c e

curvato instruct$.

Spec.

1.

Leucoth’de articulosa.

Cancer articulosus.

Leucothoe articulosa.

Habitat

in

mari Britannico, rarissime.

Moiztagzc,

Linn. Trans .

vii.

71.

t.

6.$

6.

Leach,

Edii2.

EmycZ.

vii. 403.

D I V I S I O IV.

A12tenn~4-articulat~,rticulo ultimo

e

plurimis articulis efforma-

to

;

uperiores longiores.

S U B D I V I S J O 1 .

Yct lum

par

secundiinz maris

manic

clilatatd

coinpressd.

Gen.

7.

M E L I T A .

Pedum

paria duo antica monodactyla

;

par secundum

tligito

i n

palniam inflexo.

Cauda

lamell& utrinque elongat& foliaceii.

Spec.

1.

Melita palmata.

hI.

corpore nigrican te, antennis pedibusque pallido annulatis.

Cancer

palmatus.

Montagu ,

Linn.

Trans. vii. 69.

Melita palmata.

Hal i ta t niaris Danmoniae

littora s u b lapidibus passim.

Leach, Edin.

Encycl.

vii.

403.

Gen. 8.



(;en.

8.

R ~ I E R A .

Pedirm

paria

d u o

aritica

inonodactyla, par

secundum

digito

i n

fatus inflexo.

Cazida

stjlis

nullis loliaceis.

Spec.

I .

J l e r a

g1.ossstmffna.

Cancer

Gammnrus

grossiwanus. LVIontogtc,

‘I>

.

SOC.

x. 97.

t.

4.J 5.

M;wa grossimana.

IInDitcit

a d Dmiiioiiie littora

scopulosa

sub lapidihus

vulgatis-

I,ccicfi, Ediii. E i i c j c l . vi i . 403.

G e n .

9.

G A M M A R C J S .

Ante i i i i r e

superiores ad basin articuli quarti set&parvuk articulatd

*

Cazrda

stylis geminatis stiperioribus stylo supero breuissimo.

S

pcc.

1 .

Gaminartis

aquaticus.

instruct=.

Cauda

superne fasciculato-spinosa.

G. processu

i n t e r antennas obtuso rotundato.

Gaiii inarus

Yulex.

77nbitot in rivulis et stagnis vulgatissime.

Lenclr,

Etlili.

Ericycl.

vii.

402-432.

Spec. 2 .

Cam ma rus marinus.

($.

processu inter antennas subacurninato.

I l nbit

a t i

11 Dan nio11 ~ea

us

t

l a 1 s mar .

Spec. 3. G a n m a m s Locmtcl.

G .

oculis lunatis.

Cancer

Gainniurus

Lccusta.

(fanmarus Locusta.

l lnhi tn t in Rritanniz mari

vulgatissime.

& - o n t a p ,

Linn.

Trans.

ix.

92.

Leach, Edin. Encgcl. vii. 403.

Spec.

4.



Dr.

L E A

:

11’s

A r w i g e m e n t

of

the

Crustacea,

&c.

361

Spec.

1 .

Podocerus uariegntus.

P.

albo rufoquc variegato.

Podocerus variegatus.

Habi ta t inter confervas marinas.

Lench, Edin. Encyc l . vii.

4.53.

Ccn.

13.

J A S S A .

Pedes quatuor antici monodactyli, rnani-

bus ovxtis ; par secundum majus latere interno armato aut sub-

rc

c

to

d

en t

bus

i n

s

r

u

c t

0.

Ocrtli liaud proniinuli.

S p c .

1.

J a m yulciielln.

J. pollice sccundo

latere interno ad basin emarginato.

Var. a. inaiiii

secuncl&

dente elongato, obtuso ad interni lateris

Var. p manu secund& atere interno tridentat&.

Jassa

pulchella.

Leach , Edii2. Eircycl.

vii.

433.

IZtrLitnt inter fucos in Dannion iz australis mari. Color albicans,

rufo pictus.

basin.

’

Spcc . 2. Jussn yelagica.

.J .

m

an

ti secu n

d

A

1

atere i

n

t e

m

o 1

1n

(z

to-e

m arg nat0.

Corpus

cinereo-subpellucidum fusco variegatum.

Tfabitat in inari Scotico apud the Bell

Rock.

Cum

copia ani-

ina1 11 I I

co 11

11 I

t i 11

ca.v i

t ani ic

u

s R. Stephenson.

O B S . (;ainuiarus t’alcatus, Moit tc igu, Truiis. Lima.

SOC.

x.

ad I IOC

genus pertinere videtur.

Ge n .

14. C O J W P F I I U M ,citr.

C A N C E R ,

inn.

A S T A C U S ,e m .



362

Dr.

LEA

IS 'S

A r r a n y e i n e t ~ t

f

t h e

Crustacca,

&.

Spec. 1 .

Coropliium

l o n g i c om e

Cancer grossipes.

Astacus grossipes.

P e n n .

Bri t .

Zool.

iv. pl. 16.

j:

31.

Corophiuni longicorne.

Lim. Syst.

N a t .

i. 1055.

Latr.

Gew Crus t . e t Itis. i.

59.

Leach , Edin.

E ncyd .

vii. 403-433,

S E C T 1 0 111.

A . Caitda i i ier inis

Corpus depressum.

D I V I S I O I .

Corpus

6-articulatum, seginentis oninihus cum capitis

basi pedi-

geris.

Y e d e s 14

;

crria

duo

antica

urigue mobili, (pollice) in-

structa

;

pn r an t i c ttm

minus, a d caput annexum,

carpo

articu-

lato ;

pni*icr

tcrtiuin

et quart i t in

szp ius spuria

; nr i a

sesposteriora

coxis a l i q u o t productis, uiigiiibiis validis armata. Aritennce

yua-

tuor, s i i periores longiores. 0 s palpis duohus apice ungulatis.

Anus

tuberculis parvis obscuris.

Bursa (uterus ex ternus)

valvu-

lis imbricata inter fceminae peduni yaria tertiuni e t quartum sita

est, quii

ova

pullique

post exclusioneni educantur.

A N I M A L I A

arasitica

in

Oceaiio degentia, Fucis, Cetaceis (Pis-

cibusyue

?)arcte

affigentia.

S U B D T V I S I O

1.

Corpus lineare.

Oculi poiie

aiitennas superiores

siti.

Aiitetince

4-

articulatce

:

sityeriores seg mento itltitno alioruin loiigitzidiiie,

e

p h i -

riinis ciliis corn

posit

is :

nferiores subcompressce,

szrperioribrts diniidio

mi?iores. Pedi t in yrrr a i i t i c i r i n

(Palp i

Rlontagu)

0s

p o p e s i tu m ;

s e c i ~ i i d u i i i

nnnu stepiits iiitris cleiitatd.

Gen . 15.

1'1%

o'ro.

P e d u m

paria secunduni, tertium et quar tum basi

appendiculata .

Ad

Pedes

oinnes valid&unguiculati.



A d I)oc q e n u s pertinet

Sqiiilla

p d a t a , forte etiam vefifricosa

hJ iilleri.

Pedrrm pa

r a sec

11n d

11ni

,

c r

i

11 i i i c t q i

a

1 t 11m

ha

11 d a ppen

d

i

c t i

1a ta

ad

Iwsin

; p i r i 1 ~ 1 1 ~

ertio

ct q t i a r t o s pu r i i s , globosis, subgelat i-

nos s.

Ad Iioc genus Asttrciis citomos Pennant, Squilla Zobuta bItiIkr, c:t

G c n . 16.

C A P I t T : T , L A *

Cmcw

Plicrsnia

X4o

11

tag 1

pert lien t

.

I Iab i ta t

in

mari

inter

fiicos,

geoiiietrick

niovens.

The specific characters riiay be taken from the number aiid

situation of spines

i n

the

head

and back,

for111

of the second pa i r

of feet, &c. The

syi ionynis

are a t this time so coiifirsed t h a t

I

cannot

venture to describe or nanic

those

in

my collection,amouiit-

iiig to

four

indigenous species,

S U I I D I V I S I O 2.

Corpus

latunt. Ociili i i i ve rti ce m siti. ATiteiiiice 4-articulatcc,

s u p -

riores

longiores,

articirlo basilari paulo

rnqjore,

secuiido tertioque

cequulibus bnsilcrri puu lu lum minoribus,

ultimo

vi inuto penul t imo

q uadruplo

minore ; nfe rio res crrticzilo basilari sup erior

urn

Lreviores

nrticcilo

i i l t i i i lo

ntiiiuto. I’cdes conipressi valide utiguiculati ; a-

ri(i

d i r o

nn t i cn pollice i i i s t ri tctn : a r a n t i c u m niinimum ad capitis

busiii crdrrea t i in ,

ccityo

ar fi ci il nt o, seciriiclitnz iiiajiis manu iirttrs den-

tat(?, tei-tiriita e t qtiurtrun cot’iaceo-?ne)ii~7’nllacea, ylindrica, clon-

gutu, spirriu.

Anus

yrocliictiis,

t

uberc ulis obscrtris

parvis,

U r i i w (u t erus ex t ern ts> v a t v d i s q iiat iior imbri cata.

G e n .

17.

L A R U N D A .

C s n n i u s , Latrei l le, Lumnrck .

I’n NO E Leach.

V O L .

X I .

3rt

Spec. 1 .



Spec. I . Idcirri/itla ‘eti.

Oniscus Ceti.

Squille

de

la Baleine.

Pycnogonuni Ceti.

Cyarnus Ceti.

Panope Ceti.

Habitat

in balzeiiis (etiain i i i sco1ri6ris, Latreillc).

Linii. Sjlst. A7(it. i . 1Oo’O.

IItJ

Geer, M h i . i w

Zes

Tm.

ii.

P I

42.

$6.7,

k’tibr. Sit11111.

Elit. Syst . 670.

Ltitr. Gel). Crust. e t

Ins. i. 60.

Leacli,

& c h . Eizcycl. vi i . 404.

D I V I S I O

11.

Corpus segmentis oinnibus h a u d pedigeris ; scgiiieii tuin ii1tini:iiii

c

a

u

d ae maxim u ni . A 11t en i ce f i I i fornies, 111e

d

ie

b

rev is s mZP, ex-

teriores ad corporis dimidium longitudinis et ultra. Uirgrtes

valid

i.

Gen. 18. I D O T E A .

A t

e ri

11ce e x

e

riores

d m d i 11

in

a

i

t

ini

nu

s

corpo

ri

s 1o ig

t

u d i n

s

zequantes, articulis tertio quar toque xqualibus. Corpus ovatum.

Spec. 1 . Idotea Entomon.

1.

corpore elongato-ovato, caudh apice tridentatA

:

dente inter-

medio m

a j

ore,

a

n e

n n

s cl i mid u n~ corporis longi u

d n e

ni fcrc

z quan i bu s.

Ii/iiz

Syst . Nut .

i . 1OciO.

Yeiui.

B i i t .

2001.v .

pl.

18.

j ig . 5.

Oniscus Entoinon.

HaGitcrt

i n inari Britannic0 passim inter fucos.

C

01

or c inereu s,

fus

co- p u n cta ss in us, z pe cre m ore 111

a

c 11 a t [I s.

This species, which is

very

coiiimon 011 all o u r rocky coasts, va-

ries much in the forni of the extremity of the tail,

uftcn

occurring

without

the

lateral teeth, which

is

ever the case (as far

as

1 have

examined)

in

younger specimens.

Otiiscrls

rnariiztrs

of Pennant,

plate xviii. fig. 3, appears to

be

the variety above mentioned.

Length one iiicli

and a

quar te r .

Spec. 2.



Spec. I . Steiiosom

lineare.

S.

cautlA seginento u timo

h i

uba iigu stat o tipicein versu9

tlila-

Oniscus

linearis.

tat;i:

apice

t ru n ca t o etiinrgiiiato.

Y e n u . B r i t . .Zoo/ . i v . pl.

18.

jig .

Spec. 2. $tei iosoina

aciiinir~atum.

S. caudb s eg m en t o

ultiiiio

a c u mi i ia to .

Stenosoma acuminatuu i .

€I(lbi tgt i n

mari

Danrnoni;e :

semcl

obviuni .

Lecrch,

E d h . Eircycl.

vii. 4-33.

D I V I S I O

111.

Ca

u c h

segtnent u m pen 111

i

ni II

ni

br e vissi tii um

;

u 1 i 111u ni a ng usti us

e longs tum, u t r inque

laiiiellis tluabus clongatis. i l /I te i i i ice sub-

q u a l e s , unA post a l te ram in

line&

fere horizontali insert=.

Gen. 20. A N T I I U R A .

dntennla

breves,

in terioribus paululuni Iongioribiis.

Pedes

ante-

riores

nianu ungue seu

pollice

ins truct i .

Corpus lineare.

CttItd(6

1ainel 1is du

ah

u s fol a c e s u tr

n

q ue i

s

r u c a .

Spec. 1 . A?itlii(r(i rmil is .

Moiitcrgu, Linn. Trcr rs.

i d .

is. tub.

5.

fiq. 6.

Leach ,

Edin.

Encycl . r i i . 404.

I t

is

p r o b a b l e t h a t

0,iiscus cylindricits

of

a l o n t a g u ,

Liiiii ~ r ~ l l l b .

Oniscu s gracilis.

A nthu ra gracil is .

iiol. vii. tab.

6. j i g . S. is referable to this family.

D I V I S I O

IV.

C u u d a seginen

un]

u 1

i n

u 111

in

a s i

11u

ni u rin q u e

a

ppendicu la t

u

111.

A u t e n m per

paria

uiio

super a l iu in posit=.

S U U 1 ) 1 V I S I O



Dr.

L E

C

11’s

Arrnngemeia t

o f

t h e

Crustaceci,

&.

367

Gcn.

21.

C ; \ R l P E C o P F . ’ A .

Cartcla

srgiu

en o ul t i in o a 1)

pc

n l ice c i r v a tti

c o

11

11

rcssfi 11tri n qiie

instr‘iicta.

Corpus

6-articulatum, articulo

iiltiiiio

aliorutn mag-

n i t 11

tl i n e

. r l I

t

eii

?ice

sc

acex, s

u

perE

Ion

g ores

,

pc

d u n c

u o t i ar-

t i c i la t

o.

Ung es (an-

tici salteni) bifidi

;

reliquas haud vidi .

Spnt

iitni

in

te a n

ten

n a s

ampl

i

ssi

m

111.

Spec. 1.

Campecopen

Iiirsuta.

Oniscus

hirsut us.

Campecopea

hirsuta.

Moiitngu, L ~ J U Z .rans. vol.

vii.

tcrb. 6 . j g . 8.

L e a c h , Edin. En c y c l . vii. 405.

Gen.

$2. NIESA.

Cairda segniento

ul t imo

utrinque appendice rectCt subcompressA,

pcdunculo adnexo. Corpus 6-ar ticu latum, articiilo uItimo ma-

jore. A i i t e , i t i c E setace*,

sii

b a q i i a l e s , superiores pedunculo am-

pl

issi

ino

,

hia r

c

u

1

a

to, art

c

i

I

o

bas

a r

i

m

aj

ore.

Siiu

tiism i n

cr

an ten

11

as fic i 1 1

i

m e d isce r 11cn d u m .

Ungues

b f i t i .

Spec . 1. Nasn biden ta tn .

O n i s c u s

bitlentatus.

Nzsa hidcntata.

Jdu i t i . 9 ,

L i n i i . Trails. vol. V. S. tab . 2 . j ig, 3 .

Lecicli, Ediii . E1iqcZ. vii.

405.

S U C D I V I S I O

2.

Caiidce

segmeirtttni

t i l t i m r i n

nppendicibus diiabus

f o l in c e i s , s t y

ove bi-

f d o , i ~ l s t r l ~ c t l l l ~ l .

A ntertna:

srtperiorts

pedtrnculo amnplissimo. Ungiies

bijdi .

(Cuplit

posticc ad ku

f

ern subhilobat urn, lobis ocrrlijeris.)

Gen.

9 3 .



36s

Dr.

TJr;~c

1's

Arrangement

of

the

Critstacetr,

'ye.

G e n . 23. Cr-hrourcr;.

O c i ~ l i

t 1

segmenti attingentcs margineiii antcrioreni antici. Corpiis

7-a

r

t i

c111R t

11m. Cn iidn bas

11

tri 11g

11e R 1)

pe

i 1

c i I)

u

s tl 11all

us

sub-

compressis, h a u d f'oliaceis, exteriori

ius

inajori I ius ; ryex emar-

ginatus, interjcctd

Iamel1, l. U n p e s

bifidi.

S ecieni ind igenam poss deo (0 i sc u s t

ru

n catu ,

41on

tu p , Mss.)

Cyinodyce truiicatn.

Lencl i , Ediji. Zi icycl . vii. 433.

G en . 34. D Y N A B I E N E .

Occili

a d

scgincnti antici niargineni antcrioreni

haurl

attingcntrs.

C o r p s 7-articulatum. Cnricla

basi

utrinque appcndicibus dua-

b

u

s i x 3 q u a1 i bus

fol

iace s

i

11s

t ru

c a ; a p e x e 111itrg i n

i t

t i s, l miell8

nnlli i

interject&. Ungues bifidi.

L y ~ ~ i i t ~ ~ e l l ~ .

Species

tres

Britannicas possideo.

Leach ,

Edin. Eizcycl. vi i . 433.

Gcn.

25.

S p I I x l t o J i A , Latr.

Oculi ad

niarginein anteriorem corporis

seginenti

prinii haucl

at-

tingen tes. Corpus 7-articulatum. Caudn apicc integra, basi

utrinque

appendicibus

d u a b u s foliaceis zqualibus instructa.

Uiigues bifidi.

Spec.

1. Splicrroma s e w n t r r .

S.corpore ltuvi iiicrrrii, cautl9 IievissimCt utrincluc ohliquc

trun-

Oniscus Globator . Prillas

Sp.

Zool. f a x . i x . tab. 4 . jg .

18.

Cymothoa serrata.

Fubr.

Z h t . Syst. i i . 5 10.

Sphterorna cincrca.

Habitnt

ad

oceaiii Eiiropxi littora.

apice nigro.

shire, Kent ,

aiid

Cornwall.

catA, lniiiellis ellipticis acutis

;

esternis externe serratis.

Latr.

Cel l

Crust.

e t Iirs.

i .

65.

'Octrh nigri. Ante~mce ulv;~.

Pedes

ciiierei, unguibus fd v i s ,

This species is very coinmon o n the rocky shores of

Devon-

Spec.

2.

C o r p s cinereuin

vel

albiclum rufo-marmoratum.



Spec. ?. Sphc~roitia i r g iccrtickr.

S. corpore

I z v i

inernii, caudh rugulosA: laterihus ohliyue trunca-

tis,

lainellis cllipticis;

ex

ternis rnargine externo vis tlenticulatis.

S

pliz roni a r ugica

u

d a .

13nbitctt i n occmo .A tluiitico.

RIus. 1,car.h.

Statii1.a et niagnitudo przcedcntis, ct satis distincta, caucli'i

riigosih, l amc~l l i s otundatis nec acutis, antennarutn itiferiorum

pe-

d i i ncu l o longP

ininus crasso.

Color

cinereus, nigro lineatus,

r m -

cula tusque. Oculi nigri.

Lecr

ch

, Etliti . E

/ic. cZ.

v i .

405-433.

I discovered this spccies on

thc

Is le

of Ulva,

one

of

the \Vest-

ern

Isles,

over against

Rlu l l , i n

the month of Angust. I t was

much

more

agile than S. serrarta, which called m y attention to

minute examination.

I

met with several, but owing

to

an ac-

cideii t only one remains.

Spec. 3.

S'limoiiin Hooker i .

S . corpore Izevi, caudzr articulo u l t i m o t u berculis tluobus ob-

Spheroiiia

H ookeri.

Ilcihitat i n SuffolciA ad littora inaris; color cinereus au t rufescens,

punctulis nigris sparsus. Cum copid crustaceorurn benignis-

sinie communicavit amicus \Ir J .

Hooker,

cujiis noiiicn gerit.

1on ga s s iboh sc

u

r is

.

Lectch, Eclin. EncycE.

vii.

433.

** A

n t e n m superiores

yeduncido

amnplissimo. Ungues

sirnylices.

Oculi

magni, graniilati, oblongi, obliqui, marginales.

articulatuni.

utrinque appendicibus duabus foliaceis instructa.

Corpus

7-

C'aiicla

6-articulata7 articulo ul tinlo majore, basi

Spec. 1.



370

Dr.

LEACH’S

rraiigentent

o f the

Crirstacecl,

+c.

Spec. 1 . 2 g a enzarginatn.

A?’ .audA art iculo ul t in io acuni inato

;

pr o t e s s u interiore apice

Hnbitc1t

in te rn6 ob l iyuk t run ca to ex tern&ernarginato .

A n sit Oriiscus Psora. Penn.

B r i t . Zool.

ir.

p l .

18. fig. 1

?

Spcc . 2. A3ga tridens.

2

m u d %art iculo ul t i ino t r icarinato

:

carinis u l t ra apicem in den-

H a b i i a t in h lari Scot ico.

hlus. Sowerby.

t es p roduct i s

;

processu in teriorc t runcato .

*

** A

n

e

1

nce

superior

es pedzr

n

czr lo ??Iediocr

i.

G c n .

27.

EURYDICE.

OciiZi distincti, lafcralcs,

noii

granulat i .

Cuput

segnienti antici

corpo ris lati tudine. Corpus 7-articulatum.

Caudn

6-articulata,

artjculo

ult imo m ajore.

Ungzies

simplices.

Aiitenna

iiferiores

corporis longi tudine.

S p e c. 1

.

E icrydice 1 )

i lcliwi.

FA.

a u d a ar t icu lo u l t iino

semiovali.

Mabitat

i n

inari

apud

Hantharii in D nnnioniA aus trali

vulgatis-

si&, celcrrimi:

natans .

C

010

r c n ere us 1)111cherr i n k 11 gro irrorii tus.

G c n .

26. LInlNoILId .

C a p t

corporis

segxrierito

an tico lati tu dine aequale.

OciiZi

clistincti

granulat i .

Caucln

seguiciitis pluriniis cor por e vix angustioribu s,

ul ti in0 sub o u ii

d

ato,

Antennae



Dr.

L E A C

1's

Arrangemerit

of

the

Crustacea,

&c.

37

Anteiinte infernk per paria insert=,

unA

super alteram posita.

Oculi e granulis ("octo au t septernj effonnati.

Spec. 1. Limnorin

terehrans.

L. corpore cinereo, ocu1i.i subpiceo-atris.

Liuinoria tercbrans.

Long.

Corp . 1 l in . et

1;

a u t

2

liii.

'I'liis new

a n d

highly interesting species I received through tlie

politeness of

m y

attentive and worthy friend R. Stephenson, Esq.

I t occurs in the greatest abundance at the

Bell

Rock, in the

old

wood-work used whilst the tighthouse was building, which it per-

forates

i n a

most alariiiitig manner, entering to the depth of

two

inches or wore, boring

i n

every direction.

'I'hey

seldom or never

deviate from a straight line in their perforations, unless inter-

rupted in their progress by a knot in the wood , when they pass

round

it.

The female is one-third larger than the male, and may be

readily distinguislied by its pouch, which is easily seen, and in

which

the

eggs a n d young ones aftcr their esclusion are carried.

The young ones in those I examined were generally seven

in

num-

ber,

in

some

few nine,

autl

i n

one

instance only

five.

%%en

dive it

can contract nearly into a ball.

I was at first induced to place it

in the genus

Cymothoa,

but a more careful observation clearly

proved it not to

be

referable to that genus.

Lcucl i , Ediu.

Eizcycl .

si i .

433.

Gen.

29.

C X - X O O T H ~ A ,abr., Dald., L a t r .

Cupu t a igustu m, parv

II

in. Segment

z c n i

se c

u

n d u

m a n

icB em argi-

natum

ad

caput recipiendum, angulis anticis porrectis cum

capi te lineain rectain delinientibus. Cauda segmentis plurimis

corpore angustioribus, ultimo niajori transversk subquadrato,

basi utrinque

s tyl i s

duohus pediculo impositis.

Oculi

obscuri.

* I men tion the number with som e doubt; even granules are arranged in

a

circle,

and in

a certain light there seems to

be

another

in

the centre.

V O L . XI. 3 c Spec. 1.



372

Dr.

LEACH'S

rrangement

o f

the

Crustacea,

&.

Spec. 1. Cymothoa CEstrurn.

Cymothoa

G s t r u m .

Tub?-.

Ent. Syst.

ii .

5 0 5 .

L a t r . Gel) .

Crust.

e t

Iiis.

i. 66.

C.

Cauda se t i s duabus terrninata.

D I V I S I O V.

Corpus

sex

a r cul a u ni

. Ca

L

cln sexar cu

at

a , ar t cu o u 1 i

II

o ma-

jore, sets

utrinq ue instructa . Pedes

14 ;

par

anticum

didacty-

lum,

par secundum coinpressuiii dentatuiu, paria tc r t iua i

e t

quartum consimilia, simplicia, par quinturn

ungue

duplici

?

paria sextum

et

sept inium spuria . AntennG quatuor, supe-

riores pedu ncu lo biarticulato apice set%m ul tia rti cu lat i armatae,

inferiores hifurcatae.

Gen .

30.

A P S E U D E S .

Spec.

1.

Apseudes Talpa.

A. test%

antic& acutii rostriformi

lineis

tribus longitudinalibus

Cancer Gammarus Talpa.

fiIontagzc,

Trans.

Lim.

SOC.

x . t . 4.$6.

Apseudes Talpa.

Color

Aavicante-a1bus.

Habi ta t i n ocean0 Britannic0 rarihs.

exarat

s.

Leach, Edh.

E n c ~ c l .

ii. 404.

D. Caudu stylijera.

D I V I S I O

VI.

A 12 t

e

1

?ice qua

u or

,

in t

erio

re

s d ist n

c

ze .

S u B D D v I I S o 1.

Sty l i esser t i .

Pedes

ail tici viajores,

ntaiiic

rnoiaoductylil.

Gen. 31.



Dr.

LI.:Acli’s

Arrangement

of

t he

C‘rristacea,

&.

375

Spec. 1 . Pltiloscia Mrtscorum.

.F(~fk . nt . Sys t .

ii. 397.

Oiiiscus fuscorurn.

Oniscus syl\,estris.

Yhiloscia

Muscoruni .

Hcrbitnt i n GalliA, Ccrm~niA, ueciA, Angliii, s u b

l ap id ibus .

ScopoEi, El i t C a m .

1105.

.Latr . Geii.

Crust .

c t Ins . i .

69.

Lencli,

Editi. Eitcyc l .

rii. 400’.

Gen.

36.

O N I S C U S .

A i i t e n m

externae

s u b

capitis

niargine antico

proniinulo

insert=.

Spec.

1. Onisceis Asellus.

Fabr.

Suppl. Ent. Syst. 300.

Oniscus Asellus azrctorum.

Oniscus mura r ius .

b. Antenna ex t e r m ar ti cu li s septem.

Gen. 37.

PORCELLIO,

a t r .

.4ttten?zce exterm s i ib capi tis

m a r g i n e

antico prominuloque in-

sert=. Styli c a c d a l e s

la terales prominul i , conici.

Spec. 1. Porcell io

scaler.

Fabr .

Suppl. Eizt. Syst.

300.

r,ntr. G Y ~ .

r u s t .

e t

Ins .

i. 70.

Leuclt,

Edin.

E?icycZ.

v j i .

406.

P. corpore scabro.

Oniscus

Asellus.

I’orcellio scaber.

Jclbitat

in Europa sub

ligno

pu t r ido , et sub Iapidibus passim.

Spec. 2. Porcellio levis.

L n t r .

Gen.

Crust . e l Ins. i . 71.

Leach,

Eclin.

Encycl.

vii.

406.

P.

corpore

laevi.

Porcellio I ~ v i s .

Habitat cum praxedente.

Mus. Nostr.

I n BritanniA semel obvius.

*

Corpus



376

Dr.

LE

CII'S

Arrangement

of

t h e

Crustacecc,

4-c.

**

Corpus

in

globurn

contractile.

Gen.

38. A R M A D I L L O ,a t r . O N I S C U S , inn.

An t e n n a externze '/-articulat:e, in cavitn te m argin ibus prominula

insert=.

Stjli

ca u d e la tera les haud prominuli , art iculo apicis

triangulari , cum ultimi segm enti margine connivente. Latr.

Spec. 1. Armadillo culgaris.

Arm adillo vulgaris.

Oniscus

Armadillo.

L a f r . Gen. Crust .

e t Ins . j.

7 1 .

Liiin. Syst. N u t . i.

1062.

Classis 11.

Ordo

I.

C I I I L O G N R T I - I A ,

a i r .

hE Y R

I

A P 0 D A%.

,$laxilke

nullix.

Palyi

indistincti.

Labium

inerme.

Ordo

11.

S Y X G N A T I T A .

MaxiZZle

driae dis tin ctz ,

basi

c o n n a t a Pa@

d u o

niaxillares fili-

formes

; d u o

labialcs ungulA terrninati.

Ordo

I.

C H I L O G N S T I I A .

Fam. 1. G L O M E R I D E S .

C o r p s in

globum

contractile.

insert=. O c d i distincti.

Antenna capitis pagina:

supern=

Gen. 1. G L O M E R I S ,atr.

Pedes

u t r i n q u e

16.

*

This

class

was

arranged

with thc Arachnides by

Latreille.

Spec.

1.



Dr.

LE

C

11’s

Arrangement

of

the

Crustacetr,

&.

377

Spcc. 1 . Glomeris pus t ida ta , Latr .

Habi ta t in LusitaniA frcquens.

Spec. 2. Glomeris marginuta.

I’oit:, Fn.

l a s .

Germ. is. 2 5

Oniscus niarginatus.

Oniscus

zonatus .

Gloniei-is Iimbata.

J u l u s

oniscoides. Torn.

Habi ta t

in EuropA sub lapidibus.

T’ilE. Entom. iv. IS?.

t.

1 1 .

J:

1.3.

L n t r .

Gen. Crust. e t Ins. i. 74.

Stem. Elem. Nut. Hist. ii.

I : ~ ~ ~ .r.

J ~ ~ ~ ~ ~

Corpus in globum haud contractile. A n t e n m capitis

pagin=

SII-

pe rnz insertrr.

Oculi

distincti.

Gen.

2.

J U L U S .

COPPUSerpentiforme, cylindricurn.

Antennarum

articulus secun-

dus tertio longior.

Thc

f o l l owi ng

spccies were all describcd from living specimens.

The

principal

cliaractcrs

of

distinctions arc colour,

sizc,

and

the

f o r m

of

the

anal

segment. The number of

legs,

which has been

considercd the most permanent character, is of no value, as it

va-

ries continually i n the same species.

S

pcc. 1. Jdus sabulosus.

J. nigro-cinereus l ineis

duabus

dorsalibus rufescentibus, seg-

.Julus sabulosus. Liim.,

F h . ,

Lafr.

Long. Corp.

1;-

unc.

Hribitcit

i l l

E u r o p x

sabulosis

i n t c r

muscos

et

sub lapidibus

passim.

Corpus 1on

g

i

u

d

i

11a 1 te I ine

01

atu

m

, 1 neis vix sub

u

n d u

1at

is.

Facies flava nigro-punctulata.

This

men o nltimo niucronato, pedibus l u teis.



This species inay readily he distinguished from all the rest by

the thickness of its body, by

the

form of the iiiucro, which resein-

hles

t h e

corniculus of m a n y of the genus

Si res ,

aiicl by its

colour,

which af ter death often changes to a blucisli violet, with testaceous

instead of red lines.

Spec. 2.

Jiilrts

Loiicliiiensis.

J.

briinnco-nigricans segmeiito ultimo subinucronato : nictcrone

Loiig.

Corp.

2 i

uric.

IInbitat i n sylvis Londinum prope inter inuscos liaud infreqnens.

Corpus lineolis longitudinalibus tenuissimis rectis exaratum.

After death it is frequently banded

with

brassy rings.

a n o breviore, pcdibus rufescentibus articulis p ~ ~ l l i d i s .

Spec. 3. Jrtlus fziger.

J. segmento ul tiiiio miicronato, pedibus pallidk rufescentibus.

Long. Corp. I

l in .

Habita t

prope Edinburgum sub lapidibus passim

; n Arran

InsulB

semel

observavi.

Corpus fortihs lineolatum, lineolis inaequalibus.

After death the body assiitnes a blueish t i n t .

Spec. 4.

Julits

t erres t r i s .

J. cinereo-fuscus annulis dilutb brunncis, capite anoque dilu-

tioribus, ventre pedibusque sublutescente-albis, segmento ul-

timo mucronato.

Long. Corp. 1 unc.

J

ulus terrestris.

f l u b i t a t in Europz sabulosis, sylvis.

Linn., F u h . , Latr.

Dorsuni striis longitudinalibus rectis exaratum. Pedes articulis

1 con-

s u

bfuscis.



D r .

L E A C H ' S

lwangement

of

t h e

Crustocea,

4 ~ .

379

I

considered this species formerly but

a

mere variety

of J . ni-

gcr, b u t l a t e r observations have induced nie to consider them as

most decid edly distinct. T he strize are rnuch s t ronger in

this

species, althougli it

is

a

m u c h

smaller animal , and tlic colour is

totally different.

Spec . 5. Jiiltis punctatus .

J.

scgnien to

ultiino niucronitto, corpore suhpellricido

p l l i t l i :

Long. Corp. 10

l in .

Ha b i ta t sub

cort ice arborurn e t in ter

mnscos

passim.

Dorsum et

l a te r a

pallid2: carn ca,line is long itudina li bus teiiui bus

exaratis. La ter a ritrinque lincfi punc torum nigrorum. l 'enter

pallidus.

Z'edes lutcscentcs. Oculi atri .

subcarneo, segm entorum lateribus pust ick punc to nigro .

Spec.

6 .

Jiidits puklie llus .

J.

corpore pallitlissini& lavescente-albido, lateribus

utr i i ique

IiiieA

Long. Corp. 7+ i n .

I iubi la t i n

Caledouike,

Angl iz

muscis.

This beautifii1 spec ies I f irst not iced near E dinbu rgh, and I have

since

tha t t ime found i t

i n

the Highlan ds of Scotland, W ales, and

England, under nioss. I t sometimes

occurs

in gardens. Some of

the segments

ncar

the head want the red spots . Th e back

is

very

sniootli, an d

not

s tr iated.

pu n c O T U in coccin eo u m

sieg

inen to

ul

irno inerm i.

Spec .

7.

Juliis

piisillus.

J.

scgmento u l timo subn iucronato , co rpore c inerasccu t e - n i p

Long.

Corp.

5

ad

0'

lin.

Hn b i tn i p o p e E d i n b u rg u m s u b la pidibus;

in

Battersea fields,

Lon-

d i n u m

prope,

inter graniinum radices. Co pula tione obscrvavi.

V O L .

XI.

3 D 6 . Corpus

aut fusco-brunn co lineis du abu s rufescentibus.



F . C o r p u s ruf‘csccns Iateri hus lineAque longitutlinali dorsali fusco-

Ihrs~11~1

ineis fortiorihus exara t i s , dist;intibus, rectis

subin-

h r i i

n

iicis.

t

I

11

a1

11

1 s

.

A n t

enn

ie

fu

sc

e

art cul s d

il

u i s. l’ed

es

1

11

tescen tes.

Gen. S . Citas P K D O S O I I A +.

Cor.y/is

lineare, dcpressuni, segmentis lateralitel- compressis,

mar-

Aritciiiice

arti culo secuntlo tertio breviore.

inatis.

*

Segtneiitis lateribits

ntedio

prominiilis.

Spec.

1. Craspeclosomn

Rnwlinsi i .

C.

tforso fiisco-brunneo

lineis qiiatuur punctorum all>idorun1,

Long.

Corp.

7 in.

H a b i t a t

inter niuscos ct sub lapidibus

pmpe

Eclinhurgniii

vulga-

Detexit

K.

kimlins, cujus

i io i i ic is

gcrit.

ventre pedihusque rufescentibus.

tissima.

Segmentis lateribus po st id productis .

Spec.

2.

Craspedosonia

polydesnioides.

C. dorso ru fo griseo, rentre pallido, p \ d I ~ u s ufcsceii tibus basi

I lnbi t c i t

i n

I)aiiiiioiii;i p r o p I’lynioutli, s u

>

lapidibus p;issiui.

Dorsuni lineA

lon-

gitutlinaliter impressurn. Segnienta valdi : protninentia, angulo

aiitico rotundato , postico retrorsurn producto , setifero, s e t & conic&

: l l t h .

Facies saturate rufo-grisea. Oculi atri. Antenna: r u b

grisex, suhpi losulE. Venter pall idus, albidus. l’edes rufks-

centes, basi

pallidi.

1 This genus was proposed by

my much

lamented friend Richard Rawlins, Esq. who

pall idis , angulo segnientorum

p o s t

i t . 0 st3tig-ero.

Detexit

I l o n i .

Rfontagu,

Corpus rufo-griseum,

pedi b u s pallidiorihus.

discovered the first species.

Fain. 111.



Dr.

LE

C

1’s

Arrangement

of

the Crustncen,

&c.

.38

1

Fam.

711.

PO YDE ni I D :

s .

Oculi obsoleti.

Gen. 4. P O L Y D E S M U S ,clfr.

Spec.

1.

P o l y l e s m l s

complanrrtirs,

L t r t r

j u l u s cornplanatus.

.Liizu.,

F dw.

OBS.Genus

Pollyxenzis

Don]. Latr.

mi h i

invisunl.

Ordo 11. SPNGNATHA.

Fam. I.

C E R M A T I D E S .

Corporis segnienta tetrapoda.

SCUTIGERA,

atr.

Gen.

5.

C E R M A T I A ,llig.

Fam. 11. S C O L O P E N D R I D E G .

Corporis

segnienta duopoda.

Pedzrrn par posticuin reliquis ma-

nifest?

longius.

St i rps 1.

P e de s u t r in p e

15.

Gen.

6.

L I T H O B I U S .

Antennce

conico-setaceze, articulis (45circiter) subconicis, duobus

Labium inferius latk antick emargina-

asilarihus majoribus.

tum, margine

valdt:

denticulato.

Ocicli granulati.

Spec. 1.

Lithobius fo r jka tus .

L . capite lato, labio inferiore toto profundk impresso-punctato,

pedi bus tes taceo-Aavicantibus.

Scolopendra forficata.

Linn.

Habi ta t in Anglih, Hihernia rarior.

Long. Corp.

1 unc.

2 D 2

Antennz



382

Dr.

I , E , ~ C I ~ ’ S

mangement

of

t h e

Crustacea,

&.

Antennae

sordidi:

estaccae. Mandibula: Lasi

sordid

testacek,

npice piceo-ferruginee. Labium

sordid

testaceurn, line%ongi-

tudinali profundihs impressurn, marginc ant ico dentibus basi

fer-

rugineis, apice piceo-atris. Antennae pilosulz.

Spec.

2. Lithobitis uariegatus.

I,.

capite corpore paulum latiore, labio toto punctis Iaeviter

im-

] l a b i t a t in l>anmoni& ustrali sub lapidibus passim.

Long.

Corp.

S-9

lin.

p un c a

0

ped ibu

sq

u e v a

r

iega s

n

e

c c

o

1

c

o or bus

.

pressis, ped i bus flavo-tes taceo-pallidis fusco-maculatis.

A praecedente differt, capitc angustiore, labio minus c r c l d

Spec. 3. Lititobius Lmilabrirm.

IJ

apite lato (femina? angustiore), labio g1ilh€‘I’l’iITlOpolito an-

tick leviter obscuribs pinctulato, pedi

i u s

testiicco-flark

Iluba’tut in Caledonia et lnsulis adjacenti t~us, ub lapidibus fre-

quens.

Labium glaberrini u m , n ick obscurk pi1nctula turn, laciniis mar-

ginibus

anterioribus rotundatis,dentibus Eerrugineis estrenio apice

piceo-nigris, nied io 1ongi

u d n

a1it&

i

111presso.

11a n d

ti u l

z apice

piceo-atride.

A n t c n n E

pilosule.

Stirps

2. I’rdcs

utr inque 21.

Gen.

7. S C O L O P E N D R A .

-1 rtenna conico-setaceae, 17-articulata., articulis subconicis.

0 s

3

aleis hemisph ~ricis ectum. Palyi exteriores cauli tfuplici,

ultiiiio articulo intern&compresso, apice ungui

b u s

duobus ar-

niata.

M n n d i b u h

val i t l~e ,

orneae,

eden

tulz.

LaGiurn

inferius

tissurii d ivisum , margine antico angustiori, recto, denticulato.

Corporis

segmerita rnarginata.

I’edes

pari antico

minitno,

ul-

timo



D r .

L E A C H ' S

w angement

0, f ' the

Crustacea,

4c .

383

tiino niajore, articulo basilari inths spinoso.

Ocztli

octo,

qna-

tuor

utrinque in capitis margine antico figuram

subrtioxnboi-

dalem delinientibus.

Of this genus we have no indigenous spccies. All the species

(which

T

suspec t to he numerous) have been confounded together

under the title of

Scoloperidra morsitum,

and the character given

as specific applies to

all

the species

of the

geiius.

* Corporis

segmeiita sulaqzcalia.

Spec. 1. Scoloyeiidra Gigaa.

S. segmentis transversa-quadratis

angulis

rotundatis ferrugineo-

brunneis posticb l u teis, antennis palpis

galeis

pedibusque tes-

taceis : pedibus (pari antico excepto) articulo basilari (secun-

doque

nirihs) spinu

losis.

H a l i t a t

Long.

Corp. 96 unc.

AIus. D o m . Janieson.

Totum

corpus

s u b

lente punctulatum.

cco-;I

ri.

Labium ferrugineuni. Mandibultr: basi ferrugineae,apice

nigrtx.

Ungues calcesque

s u

bpi-

*;yI.

Corporis segnientu tramversa alternanlia,

quiti to

e t sexto

si ibceq ua libus.

Spec. 2.

Scolopendra alternans.

S. pedi

bus posticis articulo pritno trreti intern&spinuloso.

Scolopendra alternans. Leach, Edin.

E'ncyct.

vii.

IJaLitat

Spec. 3.

Scolopendra subspinipes.

S.

pedibus posticis articulo primo subtereti supra plano

ad

api-

13a bit

n

t

Rf us. Britan.

ceni intern&pauci-spinoso.

SI'CC.

4.



384

111..

LEACH’S

rrangement

of

the

Crustacea,

&c.

Spec. 4. Scolopendra trigonepodu.

S.~ d i b u s

osticis trigonis articulo

primo

intern&

spinifero.

l l n b i t a t

M us . firitan.

fs* orporis segmeiitn elongata aut snbelongata irregulaiin.

Spec.

5.

Scolopeirdra morsitam.

f l ( i l i t n t

i n Iiidia.

Gen. S.

C I ~ Y P T O P S .

..11iteiri;ct: conico-setacez, 17-articulatae, art iculis globoso-subco-

nicis.

Lubiion

inferius

non

denticulatuin,

margine

antico

vix

ciiiargiiiato.

Pedes

postici articiilo basilari inermi. Ocitli ob-

scull.

Spec. 1. Cryptops horteiasis.

C.

testaceo-fcrru,rrineus dorso saturatiore, antennis

pedibusque

Scolopendra liortciisis.

Habi tut in liortis in coin. Devon. haud infrequens.

pi

1osi s.

Leach,

M s s .

iie

Donovan’s

Brit.

Ins.

Fan].

111.

GEOP I I I LI I I ES.

Corporis

seginenta tluopoda.

I’edes

d u o

postici

h a u d

manifestl:

aliis

longiores.

c;c>17. 9. G E O P I I I L U S .

I’edes

plur imi . Oculi

obscuri. (Lab i um fissuri

divisuni

?) Mai2-

dihctkc

v a l i d z . J t i t e i in n cylindric=, i n his apicem versus sen-

siin subangustiores, in illis 14-a rt ic ul at ~, rticulis omnibus sub-

cylindricis,

basi paululum

angustioribus.

Spec.

1 .

Geopliilw

curpopliagus.

G .

capi te an t cnn i s anoque fulvescenti bus, corpore violascente

p. Corpore

an tic&

flavicante, pcdibus pal l id&

subflavis.



Dr.

LEACII’S

rrcinge)nent

o

t h e

Crustuceu,

4 c .

385

0. Corpore obscur&

su

~)\ , iolascente-testac~~ntic& su btestacco,

Long. Corp. 2--?+ unc.

13ubitat

i n

fi-uctibus Danmonix passim.

Caput flavuni, fuho variuni

; antennir:

fulvescentcs, articulis

apice pallidis

:

niandibulx

fulvesccutcs, pr i nc t i s apiccque a t r i s .

Dorsuni antic& flavicans line; loiigitudinali AavA utrinque v io -

lascente, parte ante mediurn usqae ad segiiientum iiltiinum vio-

lascente, IincEi longitudinali pallid%; atera pallida

l in&

undu-

lath,

sinuoscrl, cincreo-vjolascentc.

Veil

ter

dorsi coloris absque

li-

n

e

s margin a 1 i bus, part e 1 11c Y

o

n scc‘n

e

p u 1

c

Iier

r

m colore sat11

ra-

t ore 111ac 11

1

at5. P t : d cs su I,fltiv i, pa 11 d i, art cul is saturilt io r b ti s,

unguibus nigris.

Variat parte antic& haud flavh, pedibusque posterioribus ma-

gis

elongatis. Fort&sexus alter.

alias as siniillima.

Spec.

2. Geophilus subterraneus.

G.

corpore

flavo,

capi te subferrugineo.

Scol

o

pe

n

1

ra su

h c r

;ine

a.

Shn

a>.

Lo ng Corp. 3 unc.

Dorsum segmentis lateraliter prominulis, lineis duabus longi-

tudinali

bus

ahbreviatis impressis.

Pedes articulis subferrugineo-

t in

c

tis.

I n tile living stat e this species

may at a l l

timcs

bc

disting~iishcd

from the preceding, by its colour, and

by

the longitudinal abbrc-

viated

lines,

which are only to

be

seen whilst

the

aiiimal is alive.

I

observed whilst turning over some garden earth i n the m o n t h

of January, ti female

of

this species i n it cavity, (apparently formed

by

itself,) witti twenty-six young

ones,

which were pale yellow,

with the head a little darker in colour, and the articulations

of

the legs slightly

ferruginous.

U

ngnes iiigiicantes.

Spec. ‘ 3 .



386

Dr.

E

C

11’s

Arrangement

of

the Crirstacea,

4 c .

Spec . 3. Gcopiiiliis acutninattrs.

C;.

corpore to to ferrugineo ant ice sensim angustiore, capite

an-

1,ong.

Corp. 18

unc.

Hnbitcrt in ter muscos rarior.

Mus.

Nostr.

I first.

observcd

this interesting species on Roborougli

Down,

ncar I ’ l ~ n ~ o ~ t l l ,nder a stone, ant1 was aftcrwards faroured by

3 f r .

Sowerby

n-it11

sererill

living

specimens,

wliich

he

received

aloiig

w i t h

sonie

inoss.

I t lias

once occurred i n Battersea

ficlds

t L 11

o

Ig t ni

0s

s.

The ante-

r ior part o f the

head

paler

than

the legs, which are slightly paler

than the hack.

Obseruat iot i .

‘l’o

th is division of

the

g e n u s Geopliilirs, Scolo-

yeiiclra electriccl of authors with two other ind igenous and some

exotic

species belong ;

but

a s

I

have

n o t

had opp or tun i t ies

of ex-

aill ining the l iving animals, I shall

at

present forbear

from

giving

a n y a c c o u n t

of

them.

t ick pe dibu sqa e di lu t ioribus .

'rile a n t e n n ~ ere of

equal

diameter t l iroughou

t.

** Antenncc

articulis

vuZd2

elongatis.

Spec.

4.

Geophilus longicornis.

G . corpo re flavo, c ap ite ferrugineo, ante nnis loiigioribus.

Long. Corp.

24

unc.

Habi ta t prope Ed inburgun i e t Lond inu m su b lap id ibus .

Classis 111.



Classis 111.

A R A C II

X

1

z)

E

S.

From this class I have n o t only removed

the

Tetrcrcei*a

a n d

Myriapoila of Latreillc as bcforc iiieiitioiied,

b u t

also the

Parcrsitu

and

T/iy .~c~~io i i~’cr

f

the same a u t h o r , wliicli consist of

gcnui t ic

INsEcCrs

;

and to the A R A C I I N I D E S

have

a d d e d tlie genus

Nycteribia,

which agrees with t h e m in general structure.

Subclassis

I. C

I3

P €1

A

L 0

S T

0

R4

A

T A .

0 s frontale ail

c a p u t aduexuin .

( P e d e s octo aut sex.)

Pedes cosis, femoribus , tibizs tarsisque form distinctis.

Ordo

I. P O D O S ~ M A T A .

Curl) s 4-ar t c ula

t

ii in, e

t q u a s i e cox ir

u

m

j

u

ii c iolie e f o r

ii

a t

u

rii

.

0 s

tubulosuni.

Ocidi

yuatuor tu berculo

i i n p s i t i .

l’edes

octo.

Ord o I

I.

Po L

Y DI E

R

o

s o

M A

T A .

Corpus

e serie segmentorurn efformatum, abdomine haud

pedun-

c

u l a t o. 0 s

n u

id

i

bul is

d idac

ty lis e

inasill

is

i n s t ruc t u 111.

Ocirli

diio, quatuor, sex aut octo.

f’edes

octo.

Or do

1x1. I ) I M E R O S 0 3 l A T A .

COTus

e

seg i1

en

tis

duo

b us cfformatu

111, abd 0111

inc pccl i~c

iil

a .

0 s

uiandibulis

et

masi l l is

arrni i tum.

Ociili

sex

aut

octo.

Pcdos

oc

to.



**

Pedes

co:lis,fe~~ioribits, ibiis

tars ispie . formA

speciuli ?mud

distimtis.

OrdO I ~ s hT 0 M E

R O

S O RL

A T

A .

Corpus e

segmento unico efformatum.

0 s cepius rostriforme, in

Y e d e s octo

aut

onnuliis maxillis aut inandibulis instructurn.

sex.

Subclassis

11.

N 0 T 0 ST 0

14

A

T A.

0s

dorsale ad dorsuui aff ixum.

(Pedes

sex.)

Subclassis 1.

C E P

H

A

L

0 S T

0 M

A

T

A.

Ordo I. YODOSOMATA.

OBS. CEMNIF.

orga na ovigera palpiforniia, elongata, articulata,

a d

rostri

bas in p o p e inser ta . Pedes coxis triarticulatis

;

femo-

r ibus 1-art iculat is

;

tibiis biarticulatis

;

arsis biarticulatis,

zin-

gziibus

instruct

s.

Fain. I.

Prc n’oGoxIDEs.

Man

dibN nu

1

1

z

Gen.

1.

PYCNOGONUM

uctorurn.

Pedes

subrobusti . Cox@ a r t i c u l i s s u b ~ ~ q u a l i b u stibia articulo

prinio longiore ; arsi articu lo prirno ~ i i i n i i i i o

uiigires

simplices,

validi. acuti .

O R G A N A v I G E R A

10-art iculata , ar t iculo

u l t imo

acutissimo,

~ n g u i f o r n i i ,

d

rostri

basin‘

segmento corporis ant ico annexa.

Spec. 1. Pycnogonum Rakenarum, a uc to r um .

‘IIabitat

in

ocean0

Europaeo,

e t

ad

l i t tora su b lapidibus.

Gen .

2.

YNO XI CNI LUS,a t r .

NYMPHON,ubr. ?

PYCNOGONUM,t h .

Fabr.

I’JI

LA N G

I v

L lllontagrt.

Yerlrs



Pedes gracillimi ;

cox&

articulo medio longiore subclavato

;

i b i t c

articulo

primo

breviore

;

arsi articulo pr imo rninimo ; ungues

duplices, inaequales, acuti.

0 R G A

N A

O V I G E I L A 7-articulata, artiCU10 u~tilllo

u

berculiformi,

i n

segment0 antico ad rostri basin

u n o

u t r i n q u e

subtus

inserta.

A d

hoc

genus pertinent

P p o g o n z c m

spinipes, 0 t h . Fabr.

F t t .

G r m .

2 3 2 , Nymphon

hirtzrm, F a h .

? e t

Phalailgiunz s p i t t o s im ,

Mont agu , Trans .

Linn.SOC.

x.

tab.

5.Cfig.

7.

OES.

Species multas indigenas possideo, at characteres nonduni

Fam. 11.

N Y M P N O N I D E S .

elaboravi.

Mandibrtke du z, biarticulat~e, idactyk.

Gen. 3. A M M O T H E A .

Mandibuke rostro multo breviores, articulis aequalibus, digitis ar-

cuatis apice conniventibus.

Pa@

9-articulati, articulo tertiy

longissinio. Pedes graciles ; cox& articulo niedio longiore ; ibice

articulo primo subbreviore ; arsi articulo primo minimo

;

i n -

Sues

duplices inzquales.

O R G A N A

V I G E R A

9-articulata, pone rostrum

s u b

pedibus

a i l -

ticis fere inserta.

Spec. I. Aininothea carolinensis.

Ammothea carolinensis.

Habitat in Americz mari .

Mus. Britan.

NYMPHON,abr., L a t r .

P Y C N O G O N U M .iiZl., 0 Fabr.

Pi1

A L A

N G

I U M .

.Mandibuke

rostro

longiores articulis aequalibus, digitis curvatis

e t

per

totam

illoruni longitudinem conniventibus, ad apicein ab-

3 ~ 2

ru

ptitis

Leach, ,2002.

Miscell. i. 34. . 13.

Gen.

4. NYMPHON.

Linn., Gmel., M oi t t .



390

Dr.

I.:ncii’s

Arrangement

o

the

Crustaceu,

c.

rup t ihs

aduncis. PaEpi 6-articulati, mticulo secundo

elongate,

sexto minimo. Pecles gracillinii

; coLrce

articulo niedio longiore;

tibicE articulo secundo

su

blongiore

;

cirsi articulo primo sub-

breviore ; uiigiies siniplices.

ORGANAv I GEI LA 10-articulata pone rostrum

sub pedibus

an-

ticis ferk inserta.

Spec. 1. Nynzpiiou femorcrtum.

Nyniphum feinoratum.

l dab i ta t i n rnari Hritannico.

Species adhuc elaborandz.

Leach, Xool. ,Wisccll. i. 45.

t. 19.f

.

OrdO

11.

P O L Y N E R O S O R I A T A .

Pcdes octo.

Ocitli 2, 4, 6

aut

8.

F a m . I.

SIRONIDES.

Palpi simplices. Munclibule didactylz.

Gen.

1.

SIRO,

a t r .

Spec. 1. Siro rubens.

Pam.

11. SCORPIONIDES.

ilfondibzde

didactylae. Pedes conformes. Palpi brachiiformes.

Siro rubens. L a t r .

Stirps

1.

Cnuda

nulla.

Oculi 2 aut

4.

Gen.

2.

O B I S I U M ,

llig.

Thor0 T

u

n par tus.

Cn

E

I

FE

R ,

L a t r .

Corpus cy 1 ndr cum

, fan

dib

u

ZCZ ponec

t

ae

.

Spec.

1.

Oculi 4.



Spcc. I, Obisiirm trombiclioides, L n t r .

Montagu has confounded this species with another, under the

title

of Acaroides*.

Gen.

3.

C I I C L I P E I L ,

eofhy.

Corpus

depressuin.

T?iorax

triparti tus.

J1a)iclibulcz

breves.

O c d i 2*

Spec. 1 . C h e l i f r fasciatus.

C.

inanii ovatA,

abdo min e segmentis margine albidis .

Habitclt sub cort ice arborum.

This

species is mentioned by Gcoffroy (His t . d c s 1 ~ 2 s . i. 61s.)

Stirps

2.

Caud u articulata, elongata, aculeo curva to terrninata. Oculi 6 aut 8.

Gen.

4.

BUTIZUS.

S C O R P I Ozictorism.

OcuZi octo.

Spec.

1.

Butlms occitanus, Latr .

Gen . 5.

SCORPIO,

atr., Fubr.,

4 c .

Oculi sex.

Spec.

1. Scorpio eiiropceus, L n t r .

Fam. 111. T A R A N T U L I D E S .

ikfmadibdcc

m o n o d ac t y l t ~ .

Pedes

duo ant ici antenneformes,

gra-

cillimi ;

ex

postici consimiles. Oczili octo. PaZpi brachiiformes.

*

Yhalangium acaroides,

p. 7 of this volume.

Stirps

1.



392

Dr .

L E A

Ii's

Armngement

o f

the Crustacea,

4.c.

Stirps

1.

Cauda Ji l formis.

Gen. 6. T H E L I P I i R O N U S , La i r .

T

R

ANT

L A ,

Fabr .

Palpi breves, crassi,

didactyli.

Thorax

ovalis.

Corpus oblonguin, cylindricunl.

Stirps

2.

Cauda nulla.

Gen. 7. T A R A N T U L A ,abr.

P I i R Y N u s ,

O h . ,

Latr . , 4 c .

Palpi elongati, monodactyli.

Corpus

breve, depressuni.

Spec.

1.

Tarantula l u n a ta .

T .

lunata.

Fubr. E n t .

Syst. ii.

433.

Ordo

111. DIMEROSOMATA.

Fam. I.

S O L P U G L D E S .

Oculi

quatuor.

Anus

simplex.

Gen. 1. S O L P U G A ,abr.

Spec. 1 .

Solpuga

araneoides, Pabr.

GB L E ODE S,

h t r .

Fam.

11. PHALANGIDES.

Oculi duo. Anus simplex.

Gen.

2.

P U A L A N G I U M ,inn.,

Fabr.,

Latr .

OPILIO,Herbst.

Fam.

111.



Dr.

L E A

11’s

Arra?~genient

f

the

Crustacea,

§ c .

393

Fam.

I I I

A R A N E I D E S ,Latr .

Ocdi sex

au

t octo.

Araneides.

La tr . , Wa lc k .

For the genera of this faniily see

Latreille’s

Geiiera Crustaceorurn

e t Insecioritm ; and

his

Consirli.rutions GPiiPrnles siw

L‘Ordre Natzr-

re1 des Criistacds,

$c.

A ~ Z U Sapillis tenoriis.

Having been favoured with some very valuable and highly

in-

teresting remarks on the growth of the legs of a species

of

this

family, by that learned and indefatigable naturalist Sir Joseph

Banks, 1 take this opportunity of conirnunicating them to the

public.

A s Sir J. Banks

was

writing at Spring Grove, on the

2d

of Sep-

tember, one of the web-spinning species,

of

more than the middle

size,

passed over some papers on the table, holding a fly i n its

mouth. hluch surprised to see a sp ider of this description walk-

ing about

w i t h

its prey, and struck with somewhat unusual

i n the

gait of the animal, lie caught

i t ,

and placed

i t in

a glass f b r exa-

mination ; when instead

of

eight, he perceived that i t had but

three legs, which accounted for the inability of the creature to

spin

its web. But the curious circumstance

of

its having changed

its usua l economy, and having beconie a hunting instead of

a

spinning one, as well as a wish to learn whether its legs would

be

renewed, induced him to keep t he animal

in

the glass, horn

whence it could not escape, and to observe its conduct.

On the following morning tlie animal ate two

flies

given to it,

by sucking

o u t

the juices, but left the carcases whole.

T w o or

three days after it devoured the body a n d head of a’fly, leaving

only the wings

and

legs. After this time it sometimes sucked and

5umetimes a te the fly given

i t .

‘I’hisprobably depentled on the

state



394

Dr.

LEA

11's

Arrangement

of

the

Crustacen,

l j c .

state of the fly. At

first

it consumed two flies in a

day,

afterwards

not more than one

i n

two days. Its excrement, wliich it voided

from the extremity

of

the abdomen, was at first of a

milky-white,

colour; bu t afterwards the mliite had a black spot in the

centre,

of

a

m o r e solid appearance than the surrounding fluid.

Soon

after its confinement it attenipted to form

a web

on

the

side of the vessel, but performed the Iiusiness very slowly and

clumsily, from the want of the proper nuinber

of

legs.

In about a

fortnight i t liad completed a very siiiall web, u p o n which it gene-

rally sat.

A month after having been caught, i t shed its sk in , leaving thc

slough hanging on the web. After this change five new legs a p

peared, not half

as long as

tlie other three legs, and of very

little

use to the aniiiial in ivalking.

Tliesc

new niciii bers, however, ex-

tended theniselves a littlc i n

about

three days, and became half

as long

as

the old ones : the web was now increased,

and

the ani-

mal continued

alniost

immoveably sitting upon it in the

clay-

time, unless drawn from it

or

attracted by

a

fly thrown to it

as

its usual provision.

Twenty-nine d ay s

afterwards

it again lost its skin, leaving the

slough hanging in the web,

i n

front of a liollo~v ell i t tiad woven

50

as

to prevent it from being completely w e n wlien lodged in

i t :

the

legs were now longer than before the change of skin, and

they grew somewhat longer still in three or fou r days , but did

not attain thc

size of

the

old

legs.

The anitiial now increased

i t s

web, and, being put into a s~rlalt

bowl as a more commodious residence, soon renewed a better

web

than the first.

I n

tliis state it

was

left on tlie 1st of

Novem-

ber, in the hope of k i n g found alive i n the next suininer, when

Aies reappear, and being subjected to furtlier obscr~ations.

On observing this animal, it appeared to this acute naturalist,

that



Dr.

LEACH’S

rrangement

9f

the Cms ta c e a ,

4.c.

395

that those organs cal led palp i mere used by the animal in grasp-

ing and changing the position of i ts food whilst applied to the

action of the m andibules , serving in fact th e purposes of hands.

Hence i t occurred

to

Sir Joseph Ban ks tha t these parts were im-

properly named , and tha t they wer’c

really

similar i n funct ion to

the claws of scorpions ; whicli opinion is firmly supported by

analogy, as shal l o n some futu re occasion

be

shown, when the

subject has undergone fiirt l ier esamination.

Clerk

calls

the palp i ,

bracli ia ,

and

asserts that

they

contain

the

organs of generation ; an opinion entertained also by Linnk, who

says

L L Peiaes in pnlp is

gericnt ;” but, as Sir

J.

Banks

obscrves, this

opinion is no where

si ippor tcd

by a s ta tcn ien t

of

facts,

or of

aim

tomical exa mi nati on. ‘l’liat the palpi

of

all male spiders are c7a-

vate at their extremities, every naturalist

well

k n o w s ; but

if

thcy

really

c o nt ai n th e s e s u d organs

of

the male, i t is a circumstancc

of

a most

curious

natu re , a n d

w c l l

wor th the attentivc exaniinatioii

of

the

physiologis t ;

a n d

wc sli;tll feel

m u c h

obliged to a n y natu-

ralist who can givc

any

information as t o the t ru th o r f‘alsity of

h i s anonialous stntemen t.

S E C T 1 0

I .

Pecles anibulatorii.

0s

mandibul is jns tructuin .

r i

Fan). 1.

1

l : o ~ I J 3 r ~ ~ l n ~ s .

Y a l p i

porrecti ad apiceiii a p p w d i c c

St i rps

1.

m o bili instruct

.

Oculi

duo

in ped i in c i~ l t im

iiser

i.

C o r p s lincd

transversd

quasi

b ipar t i tum, par tc antic4

os, ocu Zos,

pedesque

quutuor

aiiticos

gerenfe .

VOL.

XI. 3u G C l l .

1.



396

pr.

L E A C H ’ S

rrangement

of the Crustacea,

&,

Gen. 1.

T R O R I B I D I U M ,

abr. , 4.c.

Pe d e s octo.

C e n . 2.

O C Y P E T E .

Pedes

sex.

Spec.

1.

Ocype te

rubra.

0.

corpore rubro, dorso pilis longis raris pedibusque pilis brevi-

bus plurimis rufo-cinerascen tibus ob tectis, oculis

nigro-fuscis.

H a b i t a t in T ipu larid ibu s frequentissim;.

I

have

t ak en

no less

than sixteen specimens

of

this animal

from

one

gnat .

Stirps 2.

Oculi sessiles.

Corp us lined transversd haud

impressum.

Gen.

3. ERYTIIRXUS,

a t r .

Fam. 1 1 . G A M M A S I D E S .

0 s

mandibulis instructum.

PaZpi

po rrec ti simplices.

Gen.

4.

G A M M A S U S ,

n t r .

Fam. 111. A C A R I D E S .

0 s mand ibulis instructum.

P a l p i simplices brevissimi haud por-

recti.

Gen. 5. O R I B I T A , a t r .

Corpus

coriaceum.

Gen.

6.

A C A R U S ,

inn., Latr .

Fam.

IV.

IXODIDES.

Corpus niolle.

0 s ostro instructum. Ocztli abscondit i aut obscuri.

Stirps

1.



D r .

LEACH’S

rt.angement

of

t he

Cmstacea ,

&.

399

Spec. 6.

I,mdes

Pari .

Is.scuto

elongato-su bhexagono fusco

:

disco

su

bferrugineo-fusco,

rostro ferrugineo-fusco, vaginA fusc$,

pedi

bus fuscis articulis

dilutioribus e t albidis,

Habitat

i n

Paro niajore.

Ros t rum f~r rug i i~co- f i l s cunl .

Vagina fusca. Clypeus utrinque

o

b

sc

u

r

iss

mi:

sub

e

x

cav

a

u

s.

Scu tu ni

el

on

ga 0-su

b 1

ex

agon

u m an-

tic&angustius,

disco

pallidiore. Pedes fusci, articulis pallidis e t

albidis

;

tibiae

articiilis

extirnis

ad

apiceni subferrugineis

;

tarsi

a1bid

i f a r t

ic

u

1is

o

bsc i r8

s

11b f uscis

.

The

d c a r u s iiientioned

by

hrIontagu iu his Paper 011 Rats

(Trtrns. Liii?1.SOC.ol. ix.) belongs to this

genus.

Ten]

pore au u

mnal i ,

vernal

Stirps 2.

Rostrum

e t

palpi

absconditi.

Gen. 8. UROPODA,

atr .

Fam. V. C H E Y L E T I D E S .

0 s

rostro instructum.

Oczili

distincti.

T l k

tribe still requires to be examined ; it contains t h e

genera

9, Cheyletus, 10.

Smcrris,

11 . Bdella, a n d

12.

Sarcoptes of Latreille.

S E C T 1 0

II.

Y e d e s

na

a

tori .

Fain. I. EYLAIDES.

0 s niandibu l i s inst ructurn.

..

G e n .

13.

EYLAIS,

utr..

Fain. 11. H Y D R A C I I N I D E S .

0 s niandibulis nullis.

Gen.

14.



400

D r .

LEACH’S

rrangement

of

the

Cnistacea,

8 c

Gen. 14. H Y D R A C I I N A ,U Lair .

9 n l l ) i porrecti, appendice mobili instructi.

Gen.

15. LIM

NOCHARES, h t r .

Palpi

incurvati,

simplices.

Subclassis 11.

N 0 T 0 ST0 h.1

A

T A.

To this subclass belongs the genus Nycteribia

of Latreille

and Montagu ,

which

I

suspect

will

be

found

to constitute

two

very

distinct genera.

a tabular view of the external characters of four classes of animals, which linné arranged under...

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