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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 only by the gills, forming a complete circle around the anus,
Gymnodoris sp. 13 which has an orange band on the head.