Floating

This Aeolid Nudibranch has been mis-identified many times as Cuthona yamasui, with the genus also wrongly placed, and now updated to the genus Tenellia. Tenellia was a small genus until a DNA phylogeny of the former family Tergipedidae resulted in most species of Cuthona being transferred to this genus.

This picture is of a yet to be described Tenellia species. It has brown oral tentacles and rhinopores with white spot on the tip of its rhinopores. Its cerata are blue in colour with yellow/gold band and brown borders on the yellow band. This Aeolid Nudibranch feeds on Hydroids, which it is resting on, but covered with sands.

Update, species newly described in 2024 as Tenellia bughaw