Astrometis

Astrometis sertulifera, the fragile rainbow star, is the only species of sea star in the monotypic genus Astrometis. It is found from Santa Barbara to the Gulf of California.

== Appearance == The common name comes from the often brilliant coloration of the species. The spines on the top side can be purple, orange, or blue with red tips, and the tube feet often have several colors as well. The species grows to 8.1 cm, and almost always is found with 5 symmetric arms.