Thorunna africana is a small species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Chromodorididae.[1]
This species was described from the Sudanese Red Sea and Tanzania with the type locality being Dar Es Salaam. It has been reported from Madagascar[2] and the Andaman Islands.[3]
This is a small nudibranch, growing to . It is white in colour with a yellow, ruffled, margin to the mantle. The gills and rhinophores are white with bright red lines.
Thorunna africana feeds on sponges of the genus Dysidea.