This species has been shown to have two wildly different color forms, as seen in the first four photos of mating individuals found at Red Palm in 2016. The blotched form is unique and unmistakable, but the purple form closely resembles Hypselodoris variobranchia.
Several more were found at Bubbles, Apol's Rock and Red Rock. We have also seen this species in Sulawesi.
I'm guessing these are the purple form if H. iba, although the white margin seems a bit narrow.
Created 15 June 2015
Updated 14 February 2022