This is a very active hunter. It is long skinny and is usually bright green with yellow parapodia (paddles) which it uses to crawl or even swim. It has 2 eyes and 5 tentacles.

Usually found under rocks or in areas where there are a lot of bivalve molluscs, but can be found out on the surface of rocks where it is cool and damp.

A predator, feeding on small invertebrates.

May follow a mucous trail to catch its prey.

Photo Credit: Rod Morris. Photos can be purchased from https://www.rodmorris.co.nz/