[1] It is a marine gastropod mollusc in the family Proctonotidae.

This species is endemic to the South African coast and is found only from the Atlantic coast of the Cape Peninsula to Port Elizabeth, from the intertidal border to at least 30 m.[3] The gasflame nudibranch is a large nudibranch densely covered with cerata.

Its rhinophores are perfoliate and vary in coloration with rest of animal, separated by a rhinophoral crest of unknown function.

This species of nudibranch feeds on bryozoans.

The egg mass is globular, highly convoluted and usually attached to branched organisms, such as gorgonian sea fans.