Seen while diving at Anacapa, Channel Islands.
Biggest I've ever seen, at least 30 cm, could probably stretch out further.
Awesome camouflage! They were everywhere!
California sea hare
Hard to ID when not in the water, but I think they are aplysia claifornicus? They were about 2-3 inches long. There were at least 50 on the beach after the storms this weekend.
- sea slug
- very low tide ... exposed tide pools
The owner of Elkhorn Slough Safaris holds a very large sea hare stranded on a muddy bank of the slough.
Sea hares used in medical research: https://cc1.rsmas.miami.edu/slugs/scientific-importance.html
"The purple ink of one species of sea hare was used by ancient scholars in Jerusalem to write sacred texts-- maybe even the Old Testament!" www.squidoo.com/sea-hare
The purple ink of molluscs has been used to create a clothing dyes: http://en.wikipedia.org/wiki/Tyrian_purple