Definition of Tetrapygus. Meaning of Tetrapygus. Synonyms of Tetrapygus

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Definition of Tetrapygus

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Meaning of Tetrapygus from wikipedia

- Tetrapygus is a genus of sea urchins in the family Arbaciidae. It is a monotypic genus and the only species is Tetrapygus niger which was first described...
- Podocidaris Ag****iz, 1869 Pygmaeocidaris Döderlein, 1905 ****pyga Shigei, 1975 Tetrapygus Ag****iz, 1841b Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphia...
- Its diet includes brittle stars such as Ophiactis, sea urchins such as Tetrapygus niger and starfish such as Patiria. In the subtidal zone of temperate...
- algae. Echinoids occurring in this zone include Loxechinus albus and Tetrapygus niger, and starfish include Stichaster striatus, Meyenaster gelatinosus...
- be a wide diversity of molluscs and crustaceans, with the sea urchin Tetrapygus niger and the gastropod Tegula tridentata being dominant. The most common...
- 1778) Needle urchin Echinothrix calamaris (Pallas, 1774) Banded urchin Tetrapygus niger (Molina, 1782) Black urchin Echinus gilchristi Bell, 1904 Deep water...