It is a marine gastropod mollusc in the family Arminidae.

This species has to date only been found off South Africa, from the Atlantic coast of the Cape Peninsula to Port Elizabeth, in 10–15 m of water.

It is pale-bodied with opaque white ridges running down the length of the body.

Its rhinophores are set close together on its head and are oval with longitudinal ridges.

[2] The white-ridged nudibranch feeds on soft corals.