''Heliaster microbrachius'' is a species of
Asteroidea (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 Ameri ...
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Smithsonian National Museum of Natural History
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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.