This huge nudibranch only appears at certain times of the year. This one was about 40cm long.
When I found it, it was laying eggs and remaining fairly stationary. After it has finished, it then started to feed.
It is a filter feeder and has a mesmorising method of gathering the sand/muck it lives on. It extends and flattens it’s head, then uses cilia in it’s mouth opening to sweep up the substrate.
The Weird Nudibranch
Melibe papillosa by Kaj Maney, unless otherwise expressly stated, is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.