Hopkinsia pilosa Okenia pilosa is a species of sea slug, specifically a dorid nudibranch, a marine gastropod mollusc in the family Goniodorididae.

It is known from Hong Kong, Papua New Guinea and Heron Island (Queensland), Australia.

[2] This Okenia has a broad body and many irregularly arranged papillae.

The body is translucent and has some spots of dark brown surrounded by pale brown pigment.

The diet of this species is a bryozoan, Calpensia sp..[2]