Thecacera pacifica (Bergh, 1883) [Ohola]
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Thecacera pacifica is characterized by its orange body, its extrabranchial processes,
extrarhinophoral processes and the 'tail' are white tipped diffusing into blue then into
a black band. The rhinophores are orange with a black apex, the gills have a black line along the outside.
Pretty similar is
Thecacera sp. 01 which
has black spots on the body and black tipped extrabranchial processes.
More information on Thecacera pacifica are on
Bill Rudman's Sea-Slug Forum!