Evasterias troschelii

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Mottled star (Evasterias troschellii): This common starfish looks somewhat like the even more common Ochre star (Pisaster ochraceus), but its arms taper a little as they near the central disk. Also, Evasterias is less heavily calcified than Pisaster (it is smoother and less rigid), and it lives deeper in the intertidal zone. In the frost-free months, Evasterias troschelli is regularly found several feet above the zero level, but never quite as high as Pisaster. It is also more tolerant of soft substrates than Pisaster, and tends to be more green, brown, or ochre (ironically) than the normally orange, purple, or mixed orange-purple Pisaster.

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