A recent study split up the formerly widespread Aplysia parvula into a number of different species. This one appears to be Aplysia atromarginata, in part based on the elevated mantle foramen, as well as its geographic location.We saw two individuals (or maybe the same one twice) on the slope at the River in Tulamben Bay in November 2015.
Created 24 January 2016
Updated 5 November 2021