8, see text Benthopectinidae is a family of sea stars containing at least 75 species in eight genera.

[1] 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.

[2] 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.