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

40. Basic colour of dorsum black. Without conspicuous pattern of rings or lines. Tubercles few, sparsely and evenly scattered, one small tubercle immediately in front of each rhinophore. - Phyllidia madangensis Brunckhorst, 1993

- Basic colour or dorsum white or orange. Conspicuous pattern of rings, sometimes lines present. No small tubercle immediately in front of the rhinophores. - 41