About Bonisa nakaza Gosliner, 1981
Bonisa nakaza Gosliner, 1981, commonly called the gasflame nudibranch, is a large species of nudibranch densely covered in cerata. Adults are typically 50 to 80 mm long, and can grow up to 120 mm in length. Its coloration is highly variable: possible forms include a pale body with orange ceratal tips, a yellow body with blue ceratal tips, a salmon-colored body with brown ceratal tips, and a black body with blue ceratal tips. Its rhinophores are perfoliate, match the color of the rest of the animal, and are separated by a rhinophoral crest whose function is unknown. This species is endemic to the South African coast, and is found only between the Atlantic coast of the Cape Peninsula and Port Elizabeth, from the intertidal border down to at least 30 m depth. The gasflame nudibranch feeds on bryozoans. Its egg mass is globular and highly convoluted, and is usually attached to branched organisms like gorgonian sea fans. The egg mass is typically cream colored, but may sometimes be pinkish.
