The mottled sea star, Evasterias troschelii,  ranges from the Pribilof Islands in the Bering Sea to central California. It occurs from the intertidal zone down to 10 meters and beyond, on most subtrate types. They often form dense aggregations. E. troschelii  can be confused with P. ochraceus.

Scientific name: Greek  Ev (true, nice), asterias (starred).

Digital photo by Jan Haaga. References (a complete list) in the text include: Kessler (1985) or Barr (1983).

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