Hopkin's Rose Nudibranch (Hopkinsia rosacaea) ~ Hopkins rose is a lovely species belonging to the dorid group of nudibranchs. The tentacle-like structures on its dorsal surface are unusual for a dorid nudibranch. As a dorid, the Hopkins rose has a set of two elongated receptor organs at the head (anterior) end -- the rhinophores. A second feature of dorid nudibranchs is the set of gills at the posterior end of the body. The Hopkins rose nudibranch range is from Oregon to Baja California.  It feeds on another pink animal, the bryozoan, Eurystomella bilabiata, a lovely rose-colored bryozoan found under rocks in the low tide zone and below, from Southern California to Alaska.