Arbacioida

Updated on Dec 12, 2023

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Kingdom Animalia Family ArbaciidaeGray, 1855 Phylum Echinodermata		Superorder Echinacea Scientific name Arbacioida Rank Order

Lower classifications Arbacia lixula, Arbacia punctulata

The Arbacioida are an order of sea urchins, consisting of a single family, the Arbaciidae. They are distinguished from other sea urchins by the presence of five separate plates around the anus. Unlike their close relatives, the Salenioida, all of the tubercles on their tests are of similar size. It contains these genera:

Arbacia Gray, 1835

Arbaciella Mortensen, 1910a

Arbia Cooke, 1948†

Baueria Noetling, 1885†

Codiopsis L. Agassiz, in Agassiz & Desor, 1846†

Coelopleurus L. Agassiz, 1840a

Cottaldia Desor, 1856 †

Dialithocidaris A. Agassiz, 1898

Habrocidaris A. Agassiz & Clark, 1907b

Podocidaris A. Agassiz, 1869

Pygmaeocidaris Döderlein, 1905

Sexpyga Shigei, 1975

Tetrapygus L. Agassiz, 1841b

References

Arbacioida Wikipedia

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