Hermissenda crassicornis (Eschscholtz, 1831)
Hermissenda
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Family:  Facelinidae ()
Max. size:  7 cm TL (male/unsexed)
Environment:  benthic; marine; depth range 0 - 28 m
Distribution:  Pacific Ocean and the Arctic. Subtropical to polar.
Diagnosis:   
Biology:  Found in oyster beds in bays in low to subtidal zones. Carnivorous; preys on hydroids, small sea anemones, bryozoans, worms, small crustacea, tiny clams, and even dead animals. Does not digest stinging capsules (nematocysts) of their prey. Instead the nematocysts are moved to the tip of the cerata and incorporated into the creature's own defense system (Ref. 312).
IUCN Red List Status: Not Evaluated (N.E.) Ref. 123251)
Threat to humans: 
Country info:   
 

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