St. Croix Echinoderms

Echinoderms have five body segments arranged around a central axis. Most have tube feet. Sea stars, sea urchins, and sea cucumbers are echinoderms.

Six-keyhole Sand Dollar, Mellita sexiesperforata

sand dollar sand dollar test sand dollar

West Indian Sea Egg, Tripneustes ventricosus

urchin

Variegated Urchin, Lytechinus variegatus

urchin

Golden Crinoid, Davidaster rubiginosa

crinoid

Sponge Brittle Star, Ophiothrix suensonii

brittle star

Beaded Sea Cucumber, Euapta lappa

sea cucumber

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Last modified 10 February 2009