About Chromodoris dianae Gosliner & Behrens, 1998
Chromodoris dianae can grow to a maximum length of 4 centimeters. It has an elongated body, with a mantle shaped like a skirt that separates the foot from the upper body and partially hides the foot. This species is very similar in appearance to Chromodoris lochi, but can be told apart by its broken rather than continuous black lines, and the scattering of white specks across its notum. The gills of Chromodoris dianae are white, and its rhinophores have distinct yellow-orange tips. The original species description included specimens that actually belong to another species, Chromodoris cf. dianae. These specimens are distinguished by a different color pattern: their gills and rhinophores are entirely orange, they have orange markings along the mantle edge, and they have a different pattern of black markings. DNA sequencing has confirmed that these differences represent species-level separation. Chromodoris dianae is currently only known to occur in the Philippines, Indonesia, and Borneo. Like many other nudibranchs, Chromodoris dianae feeds on sponges. It has been recorded eating Cacospongia mycofijiensis and Petrosaspongia nigra, both of which are members of the family Thorectidae.
