Chunky body, up to 6 cm long, with the mantle ridge bearing a line of brown pigment and one or two pairs of irregularly squared cerata which have gills on their inner surfaces. The rhinophores emerge from elongated sheaths. Habitat: lives and feeds on hydroids among the seaweed Sargassum; often washed up on the shore with floating weed. Distribution: pantropical.
- NODC (1997). NODC Taxonomic codes http://www.marinespecies.org/aphia.php?p=sourcedetails&id=5996