A genus of starfishes of the family Astropectinidae, characterized by five short, tapering arms with spines along each edge; (also astropecten) a starfish of this genus.
Valid publication of the genus name: J. E. Gray 1840, in Ann. & Mag. Nat. Hist. 6 180.
Mid 18th century; earliest use found in New & Complete Dictionary Arts & Science. From post-classical Latin astropecten (J. H. Linck 1733, in De stellis marinis II. 26) from astro- + classical Latin pecten comb.