Ancula lentiginosa is a species of sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Goniodorididae.
Ancula lentiginosa Wikipedia
This species was first described from La Jolla, California.
This goniodorid nudibranch is translucent white in colour with brown patches or stripes composed of small brown spots interspersed with white pigment. The pre-rhinophoral papillae, rhinophore clubs and gills are similarly mottled with brown and there is a line of brown spots along the ridge of the tail. There are two extra-branchial papillae which are translucent white with a band of brown spots below the tip.
Ancula lentiginosa feeds on Barentsia sp., Entoprocta which often grow on hydroids, bryozoa and other living substrata.