Benthopectinidae is a family of sea stars containing at least 75 species in eight genera. It is the only family in the monotypic order Notomyotida.
These asteroids are deep-sea dwelling and have flexible arms. The inner dorso-lateral surface of the arms contain characteristic longitudinal muscle bands. Eight genera of deep-water species make up the majority of the family benthopectinidae, and many of its members are expected to have a greater range than is currently recognized. Shin. (2015). A New Record of Sea Star Genus Nearchaster (Asteroidea: Notomyotida: Benthopectinidae) from East Sea, Korea. Animal Systematics, Evolution and Diversity, 31(2), 135–138. https://doi.org/10.5635/ASED.2015.31.2.135
Taxonomy Nine genera are recognized: Acontiaster Döderlein, 1921 Benthopecten Verrill, 1884 Cheiraster Studer, 1883 Gaussaster Ludwig, 1910 Myonotus Fisher, 1911 Nearchaster Fisher, 1911 Pectinaster Perrier, 1885 † Plesiastropecten Peyer, 1944 Pontaster Sladen, 1885
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