Flabellinidae

Family: Flabellinidae

Group: Marine Invertebrate, Species

Scientific Name	Common Name	Summary
Flabellina trophina	Red flabellina	This nudibranch looks just like red-gilled nudibranch (Flabellina verrucosa), except that its rhinophores are finely annulate, rather than warty, smooth, or bumpy. Another difference is that F. verrucosa has a rounded oral veil ("snout"), whereas F. trophina has a blunt, triangular oral veil. Other diagnostic criteria, such as tail length (longer in F. verrucosa than F. trophina), length of white dorsal stripe (longer in F. verrucosa), and extent of white in cerata (one-fourth white in F. trophina), seem to be less reliable.
Flabellina verrucosa	red-gilled nudibranch	This species is very similar to Red flabellina (Flabellina trophina), except that its rhinophores are smooth, bumpy, or warty, as opposed to finely annulate. Another difference is that F. verrucosa has a rounded oral veil ("snout"), whereas F. trophina has a blunt, triangular oral veil. Other diagnostic criteria, such as tail length (longer in F. verrucosa than F. trophina), length of white dorsal stripe (longer in F. verrucosa), and extent of white in cerata (one-fourth white in F. trophina), seem to be less reliable.