colour rorschach

Toxic nudibranchs—soft, seagoing slugs—come in a variety of shapes, sizes and colours. As adults, nudibranchs can be finicky eaters: here, a zebra-striped species of Armina, a genus that ranges to 18cm (8 inches in the Imperial)  long, plays tug-of-war with its sole prey, the burrowing sea pen. A tiny blenny bystander picks the safer perch.

Check this 2008 slideshow from David Doubilet at the National Geographic site – you won’t be disappointed if you like peopling your dreams with the boundlessness of the deep.