Myxasteridae

Myxasteridae is a family of deep-sea velatid sea stars containing nine species in three genera.

Taxonomy
List of families according to World Register of Marine Species:
 * genus Asthenactis Fisher, 1906
 * Asthenactis australis McKnight, 2006
 * Asthenactis fisheri Alton, 1966
 * Asthenactis papyraceus Fisher, 1906
 * genus Heligmaster Mah, 2022
 * Heligmaster kanaloa Mah, 2022
 * Heligmaster pele Mah, 2022
 * genus Myxaster Perrier, 1885
 * Myxaster medusa (Fisher, 1913)
 * Myxaster perrieri Koehler, 1896
 * Myxaster sol Perrier, 1885
 * genus Pythonaster Sladen in Thomson & Murray, 1885
 * Pythonaster atlantidis A.H. Clark, 1948
 * Pythonaster murrayi Sladen, 1889
 * Pythonaster pacificus Downey, 1979