Echinoderms
Seastars (Class Asteroidea), brittle stars (Class Ophiuroidea), urchins (Class Echinoidea), and sea cucumbers (Class Holothuroidea) all belong to Phylum Echinodermata. Echinoderms are plentiful, with many species occurring at Axial Seamount.
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Related Stories
Brittle Stars
Brittle stars belong to Class Ophiuroidea, and have radial symmetry, with five skinny arms extending from their central disc, or body. ...
Sea Urchins
Sea Urchins belong to Class Echinoidea (Phylum Echinodermata). ...
Sea Cucumbers
Class Holothuria consists of the somewhat humorous Sea Cucumbers ...
Echinoderms at Axial Video
HD Video of seastars, brittle stars, sea cucumbers, and urchins on Axial Seamount. ...
