Identification Key to the Phyllidiids of the Indo-Pacific Ocean
According to morphological and anatomical features
Thanks to Alexander Fahrner and Lothar A. Beck

37. Tubercles cream or pale grey coloured, some capped in yellow, coalesced or compound, often aligned, may form irregular, broken ridges. Sides of foot with black line, close to the gills. - Phyllidia elegans Bergh, 1869

- Tubercles white or blue-grey with yellow tips, single or coalesced at their bases, never compound, lined up or forming ridges. Sides of foot without lines or other markings - 38