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"I'm usually very cautious about identifying tiny juvenile nudibranchs because they differ so much from adults. However this one is quite straightforward. It's a tiny juvenile Hypselodoris zephyra. I call it that because it's a common species and I have seen lots of individuals of all sizes." Pretty similar are Hypselodoris nigrostriata which differs by its gills, triangular in cross-section, and by the rhinophores which lack the opaque white tips. The black lines are parallel rather than oblique, The background colour of the body has a bluish or purplish tinge. Hypselodoris maritima which differs by its longitudinal black lines, and a blue submarginal mantle border and a yellow band inside. More informations on Hypselodoris zephyra are at Bill Rudman's Sea-Slug Forum! |
