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Hermissenda crassicornis (Opalescent nudibranch)
Copyright ©
2005 Mary Jo Adams
This
nudibranch can be found in rocky areas, mudflats, eelgrass beds,
and on floats. Its fringe-like cerata are tipped white and may have
an orange band just below the tip. Color of the cerata varies. Look
for the orange stripe running down the midline on the dorsum of
the nudibranch. This orange stripe may be bordered with bright blue
or white lines.
The
opalescent nudibranch may reach 3 inches in length. It feeds primarily
on hydroids but may also consume ascidians, anemones, and various
types of eggs.
This
nudibranch was previously known as Phidiana crassicornis .
This page was created by Mary Jo Adams on 10/28/05.
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Additional
information on this species may be found as follows:
Pacific
Coast Nudibranchs: A Guide to the Opisthobranchs, Alaska to Baja
California by David W. Behrens, Sea Challengers, Second edition,
1991, p. 97.
and
Southeast
Alaska's Rocky Shores: Animals by Rita M. O'Clair and Charles
E. O'Clair, Plant Press, 1998, p. 105.
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