''Heliaster microbrachius'' is a species of
Asteroidea
Starfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea (). Common usage frequently finds these names being also applied to ophiuroids, which are correctly referred to as brittle stars or basket stars. Starfish ...
(sea stars) in the family
Heliasteridae
The Heliasteridae are a family of Asteroidea (sea stars) in the order Forcipulatida. It includes two genera: ''Heliaster'' from the East Pacific (California to Chile, including offshore islands), and ''Labidiaster'' from southernmost South Americ ...
.
Description
''Heliaster microbrachius'' can reach a diameter of . The body consists of a disc with several rays. At the bottom of the body there is a mouth opening. These sea stars have a very large disc, somewhat elevated, with more or less flattened rays.