Hermissenda crassicornis: Opalescent sea slug–The Race Rocks Taxonomy

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Hermissenda crassicornis
Photo by Ryan Murphy

Ryan Murphy took these three photos of Hermissenda crassicornis, the opalescent-sea-slug while diving at Race Rocks. Note the bright stripe on the forehead between the sensory rhinophores.

Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Superfamily: Aeolidioidea
Family: Facelinidae
Genus: Hermissenda
Species: H. crassicornis
Hermissenda crassicornis Eschscholtz, 1831Return to the Race Rocks Taxonomy Index and gallery

This file is provided as part of a collaborative effort by the students, faculty, volunteers and staff of Lester B. Pearson College– Oct 2010 , by Ryan Murphy