Astriclypeus Pitouensis
''Astriclypeus'' is a genus of echinoderms belonging to the family Astriclypeidae. The species of this genus are found in Japan. Species: *''Astriclypeus elegans'' *'' Astriclypeus mannii'' *''Astriclypeus miaoliensis ''Astriclypeus'' is a genus of echinoderms belonging to the family Astriclypeidae. The species of this genus are found in Japan. Species: *''Astriclypeus elegans ''Astriclypeus'' is a genus of echinoderms belonging to the family Astriclypei ...'' *'' Astriclypeus pitouensis'' *'' Astriclypeus waiwulunemsis'' *'' Astriclypeus yeliuensis'' References Astriclypeidae Echinoidea genera {{echinoidea-stub ...
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Echinoderms
An echinoderm () is any member of the phylum Echinodermata (). The adults are recognisable by their (usually five-point) radial symmetry, and include starfish, brittle stars, sea urchins, sand dollars, and sea cucumbers, as well as the sea lilies or "stone lilies". Adult echinoderms are found on the sea bed at every ocean depth, from the intertidal zone to the abyssal zone. The phylum contains about 7,000 living species, making it the second-largest grouping of deuterostomes, after the chordates. Echinoderms are the largest entirely marine phylum. The first definitive echinoderms appeared near the start of the Cambrian. The echinoderms are important both ecologically and geologically. Ecologically, there are few other groupings so abundant in the biotic desert of the deep sea, as well as shallower oceans. Most echinoderms are able to re