| Echinodermata | <marine biology> Phylum of exclusively marine animals. The phylum is divided into 5 classes: the Asteroidea (starfish), the Echinoidea (sea urchins), the Ophiuroidea (brittle stars and basket stars), the Holothuroidea (the sea cucumbers) and the Crinoidea (sea lilies and feather stars). (19 Jan 1998) |
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Synonyms :
| Echinodermata |
a phylum of the animal kingdom, including starfishes, sea urchins, and related groups.
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| Echinodermata | radially symmetrical marine invertebrates including e.g. starfish and sea urchins and sea cucumbers |
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