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

13. Dorsum with greyish pink or greyish blue background and 4 narrow, black longitudinal lines. Tubercles low, compound, forming 3 tuberculate ridges median. Rhinophores black with pale grey base and 19-22 lamellae - Phyllidiopsis gemmata Provot-Fol, 1957

- Dorsum with cream or pink background and 2 (rarely 4) longitudinal lines. Tubercles very large and high, compound or multi-compound, never forming ridges. Rhinophores pink basally and anteriorly and black apically and posteriorly, more then 22 lamellae - 14