Evasterias troschelii

Mottled star: for more photos, see Sitka Nature Photo Gallery for Evasterias troschellii

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.

Local Notes

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References

Weblinks

• WoRMS page for Evasterias troschelii

• WoRMS Page for Evasterias troschelii
• Search Arctos Database for Evasterias troschelii (Southeast only)
• Search Arctos Database for Evasterias troschelii (entire database)
• Encyclopedia of Life search for Evasterias troschellii
• iNaturalist Observations for Evasterias troschellii in Southeast Alaska

Other References

• Lamb Hanby 2005
• Lambert 2000

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  Mottled star (Evasterias troscheli)

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  Mottled star (Evasterias troscheli)

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