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

14.Tubercles sparsely distributed and compound. Dorsum cream coloured with 2 thick, black, longitudinal lines from which few black rays can extend to the mantle edge. Rhinophore with 22-25 lamellae. - Phyllidiopsis pipeki Brunckhorst, 1993

- Tubercles numerous, densely distributed and multi-compound. Dorsum bright pink with 2 (rarely 4) narrow, black, longitudinal lines and surrounding irregular (often very short) black lines. Rhinophores with 26-28 lamellae - Phyllidiopsis krempfi Pruvot-Fol, 1957