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Very similar are:
pale variants of Gymnodoris citrina, which differs by the gills, forming a complete circle around the anus, and
Gymnodoris sp. 06 which differs by the translucent orange rhinophores, by the gills, which form an almost complete circle, and by the orange tipped paddle shaped posterior end of the foot,
Gymnodoris sp. 02 which differs by the orange tipped gills, forming a complete circle around the anus,
Gymnodoris sp. 08 which lacks the orange band on the head,