A new genus and species of the nudibranch family Janolidae (Mollusca; Gastropoda,Opisthobranchia) from New Zealand waters

Summary

Galeojanolus ionnae gen. et sp. nov. is described in some detail. The new genus is distinguished from the others in the family Janolidae by a peculiar helmet-like cephalic appendage, a pair of large composite oral glands, extremely inflated cerata and strongly denticulate radular teeth.