It is a marine gastropod mollusc in the family Facelinidae.
[2] This species is endemic to South Africa, having only been found around the coast on both sides of the Cape Peninsula, intertidally to about 15 m.[3] The night sky nudibranch grows to between 10 and 20 mm in total length.
It is a slender, pale-bodied nudibranch with groups of brown cerata having large white spots running down the length of the body.
Its rhinophores are annulate, and there is a pair of elongated oral tentacles with white blotches.
[4] The food and egg mass of this nudibranch are unknown.