The Oreasteridae are a family of sea stars in the class Asteroidea. Description and characteristics This family contains many species of regular starfishes with usually 5 arms around a stiff, convex and often brightly colored body. Whereas some species are very easy to identify, like the "pincushion seastars" (Culcita sp.), some other can be difficult to tell apart. Selected genera List source : genus Acheronaster H.E.S. Clark, 1982 -- 1 species genus Anthaster Döderlein, 1915 -- 1 species genus Anthenea Gray, 1840 -- 22 species genus Astrosarkus Mah, 2003 -- 1 species genus Bothriaster Döderlein, 1916 -- 1 species genus Choriaster Lutken, 1869 -- 1 species genus Culcita Agassiz, 1836 -- 3 species genus Goniodiscaster H.L. Clark, 1909 -- 14 species genus Gymnanthenea H.L. Clark, 1938 -- 2 species genus Halityle Fisher, 1913 -- 1 species genus Monachaster Döderlein, 1916 -- 1 species genus Nectriaster H.L. Clark, 1946 -- 1 species genus Nidorellia Gray, 1840 -- 1 species genus Oreaster Müller & Troschel, 1842 -- 2 species genus Pentaceraster Döderlein, 1916 -- 14 species genus Pentaster Döderlein, 1935 -- 2 species genus Poraster Döderlein, 1916 -- 1 species genus Protoreaster Döderlein, 1916 -- 3 species genus Pseudanthenea Döderlein, 1915 -- 1 species genus Pseudoreaster Verrill, 1899 -- 1 species References External links . Echinoderm families