Its body shape and colour vary. Many individuals have a narrow tail extending beyond the parapodia, and it feeds mainly on Udotea flabellum.
It has long, rolled rhinophores, and its narrow tail can extend a few millimetres beyond the parapodia. The body is olive to dark green, and rust-coloured patches may appear on the head.
It feeds mainly on the green alga Udotea flabellum.
An extinction-risk assessment has not been added yet.