phylum echinodermata - scamit...phylum echinodermata class asteroidea subclass perischoechinoidea...
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Phylum Echinodermata Class Asteroidea
Subclass Perischoechinoidea Superorder Gnathostomata
Order Clypeasteroida Suborder Scutellina
Family Dendrasteridae
Dendraster excentricus
Coloration: Violet black or maroon brown
Type of Urchin: Sanddollar
Defining Characteristics:
Variable in morphology Common in shallow water
- Vertical buttresses w/in shell along the edge, edge thick - Food groove pattern is species specific
Illustration
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