On the shipwreck of the James Eagan Lane.
Photos not great... it wouldn't stay still!
Second nudibranch at the same site and close by.
This is related to observation: http://www.inaturalist.org/observations/4944153
The 2nd image shows this individual as found - out of the water on a sand-encrusted sponge.
14mm length. After seeing this photo, I looked through my 35mm slides of Catriona columbiana from years ago and found this photo. I emailed the photo to both Dave Behrens & Jeff Goddard, both agree that it is C. rickettsi. Scanned from 35mm slide. Skipper's Docks no longer exists, the present docks at the location seem to be owned by sea lions, & thus are not accessible.
There were loads of these all over the rocks infront of Shag Rock (circled on the location on the map).
There are always loads of them at this site and interestingly (for me) they are always infront of the rock (towards the beach) and not around the back. I don't see them in this concentration at any other local dive sites either...
15mm length
10m depth
Dissatisfied with the previous day's photo results, I went back and after much effort finally found two more of these minute aeolids. As before, no oral tentacles, just a semicircular oral veil. Originally found on a silty mix of Obelia and Ectopleura/Tubularia with plenty of Sakuraeolis enosimoensis eggs.
Video: https://flic.kr/p/Ym8Pka
Here's another video of just moving around: https://flic.kr/p/XjPUaH