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Anurans of IdahoFa mil y Genera Species

Ascaphidae Tailed Frog Ascaphus 1

Bufonidae True Toads Bufo 2

Pelobatidae Spadefoots Spea (Scaphiopus) 1

Hylidae Tree frogs Pseudacris 2

Ranidae True Frogs Rana 4

Recent Taxonomic Changes

1983Leiopelmatidae

Ascaphus trueiTailed Frog

HylidaeHyla regilla

Pacific TreefrogPseudacris triseriata

Striped Chorus FrogRanidae

Rana pretiosaSpotted Frog

2002Ascaphidae

Ascaphus montanusRocky Mountain Tailed Frog

HylidaePseudacris regilla

Pacific TreefrogPseudacris maculata

Boreal Chorus FrogRanidae

Rana luteiventrisColumbia Spotted Frog

Frog and Toad Characteristics• Size• Color pattern• Body shape• Head shape • Skin texture• Tympanum • Dorsolateral folds• Eye size and placement• Pupil shape• Glands• Toe shape and length• Tubercles

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Tailed Frog Distribution

Family AscaphidaeTailed Frog (Ascaphus montanus)

• Max length= 2 inches (51 mm)

• brown to gray

• Smooth to warty skin

• tympanum absent

• vertical pupils

• 5th toe wider than others

• male with “tail ”

Tailed Frog Habitat

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Tailed Frog Eggs

Tailed Frog (Ascaphus montanus) Tadpoles

Family PelobatidaeGreat Basin Spadefoot

(Spea intermontana =Scaphiopus intermontanus)

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Family PelobatidaeGreat Basin Spadefoot

• Max length = 2.5 inches (65 mm)

• gray with light stripes

• Relatively smooth skin

• tympanum inconspicuous

• vertical pupils

• black, sharp-edged "spade" on the underside of each

hind foot

Great Basin Spadefoot Habitat

Great Basin Spadefoot Reproduction

Call Eggs

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Great Basin Spadefoot Tadpoles

Bufonidae - True Toads

Western Toad (Bufo boreas)

Woodhouse Toad (Bufo woodhousei)

Western Toad Distribution

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Western ToadBufo boreas

• Max length = 5 inches (125 mm)

• green or brown with light ver tebral strip e

• dry, warty s kin

• horizontal pupils

• conspicuous parotoid glands

• two horny tub ercles on each

hind foot

Western Toad Habitat

Western Toad Reproduction

Call Eggs

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Western Toad Tadpoles

Woodhouse’sToad

Bufo woodhousii

Woodhouse’sToadBufo woodhousei

• Max length = 5 inches (125 mm)

• green or brown with light ver tebral strip e

• cranial crests

• dry, warty s kin

• horizontal pupils

• elongated parotoid glands

• two horny tub ercles on each hind foot

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Woodhouse’sToadBufo woodhousii

Call Eggs

Woodhouse’s Toad Tadpole

Family Hylidae: Tree Frogs

Boreal Chorus Frog (Pseudacris maculata )

Pacific Treefrog (Pseudacris regilla)

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Pacific Treefrog Distribution

Pacific TreefrogPseudacris (= Hyla) regilla

• Max length = 1.9 inches (47 mm)

• color polymorphic

• dark mas k

• moist, smooth skin

• long toes, large toe pads

• intercalar y cartilage

Pacific Treefrog Habitat

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Pacific Treefrog Reproduction

Call Eggs

Tadpole

Boreal Chorus Frog(Pseudacris maculata)

Boreal Chorus Frog

• Max length = 1.5 inches (38 mm)

• color polymorphic

• dark str ipe through e ye

• usually 3 longitudinal dorsal

stripes

• pointed snout

• moist, smooth skin

• small toe pads

• intercalar y cartilage

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Boreal Chorus Frog Habitat

Boreal Chorus Frog Reproduction

Call

Eggs

Tadpole

Family Ranidae: True Frogs

Bullfrog (Rana catesbeiana)

Columbia Spotted Frog (Rana luteiventris)

Northern Leopard Frog (Rana pipiens)

Wood Frog (Rana sylvatica)

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Bullfrog Distribution

American Bullfrog (Rana catesbeiana)

• Max length = 7.9 inches

(200 mm)

• green to dark olive dorsum

• crea m to yellow ventrum

• conspicuous tympanum

(2X in males)

• dorso-lateral ridges

• full webbing on hind fee t

Bullfrog Habitat

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Bullfrog Reproduction

Call Eggs

Bullfrog Tadpoles

Columbia Spotted Frog Distribution

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Columbia Spotted Frog• Max length = 3.5 inches

(89 mm)

• green, tan, or olive dorsum

• dark spots with fuzz y edges

• yello w, orange, or red

ventrum

• upturned e yes

• full webbing on hind feet

• breeding males with nuptial pads, enlarged forearms

Columbia Spotted Frog Habitat

Columbia Spotted Frog Reproduction

Call

Eggs

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Columbia Spotted Frog Tadpoles

Northern Leopard Frog Distribution

Northern Leopard Frog Rana pipiens

• Max length = 4 inches

(100 mm)

• green or brown dorsum

• dark oval spots bordered b y

a light ring

• whi te ventrum

• full webbing on hind feet

• breeding males with nuptial pads

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Northern Leopard Frog Habitat

Northern Leopard Frog Reproduction

Call Eggs

Northern Leopard Frog Tadpoles

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Wood Frog Distribution

Wood Frog (Rana sylvatica)

• Max length = 2 inches

(50 mm)

• gray, green, or brown dorsum

• dark mas k with con trasting

light lip line

• may have light vertebral

stripe

Wood Frog Habitat?

?

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Wood Frog Reproduction

Call Eggs

Wood Frog Tadpoles