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Mossy chiton

Mopalia muscosa


This was a fairly noticeable sea invertebrate, maybe 3-4 inches in size. Its sweeping movement in the water is akin to that of a Roomba's over smooth rocks, with sea snails as onlookers.


Spotted in the rocky Pacific intertidal zone at Tongue Point Marine Sanctuary, close to dusk.


Chitons appear to be a pretty heterogeneous group, but I had a hard time telling this mollusc apart from M. ciliata, the northern hairy chiton. The species are very similar except for their bristles and range.

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mauna Kunzah
Spotted by
mauna Kunzah

Port Angeles, Washington, United States

Spotted on Jun 16, 2019
Submitted on Jun 8, 2020

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