Trapania miltabrancha is a species of sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Goniodorididae.[1]
This species was first described from Bali.[2]
This goniodorid nudibranch has a complicated colour pattern. The body is a mosaic of brown patches which contain white spots, interspersed with orange. The rhinophores, lateral papillae and gills are cream with brown patches.
Trapania miltabrancha feeds on Entoprocta which often grow on sponges, algae and other living substrata.[2]