Body shape slug-like with gill structures visible as a single cluster on back of the animal. Pattern includes shades or colours of white and/or brown. Animal up to 2 cm long.
This is the biggest of the local goniodorids nudibranchs (family Goniodorididae). When the animal takes-up residence in pits of Botrylloides ascidians, its broad foot lines the pit. The animal conspicuously lays its egg ribbon along the edge of the pit.
Shallow waters and tidal pools, often in pits eaten into colonial ascidians, to depth of 10 m.
Native to Australia
- DSE Advisory List : Not listed
- EPBC Act 1999 : Not listed
- IUCN Red List : Not listed