Listen to me, boy. You will hear about sea slugs. You will enjoy sea slugs
Costasiella kuroshimae / leaf sheep. Discovered off the coast of Japanese island Kuroshima in 1993, they can indirectly perform photosynthesis by absorbing chloroplasts from algae
Cyerce nigricans. The cerata can be easily cast when disturbed. They can also swim by powerfully flapping said cerata when strongly stimulated. I think they look like butterfly wings!
Jorunna parva / sea bunny. They are covered in papillae, which are fleshy protuberances used for sensory functions. It looks like fur!
Glaucus atlanticus / blue glaucus. They are rarely seen, except during periods of on-shore winds which brings them and their prey into coastal waters. They are the most dangerous sea slug to handle, able to give humans a very painful and potentially dangerous sting
Chromodoris lochi / loch's chromodoris. They are spongivores, and prefer being on the underside of overhangs on rocky reefs. Their distribution is widespread in the Indo-Pacific. Everyone I show sea slugs to seems to love this little guy
Dirona albolineata / white-lined dirona. A translucent predator that often eats bryozoans and small snails. They generally reside on rocks and sometimes mud in the intertidal. Pretty little things, they remind me of shards of glass
Phidiana hiltoni / Hilton's Aeolid. They are known for being quite aggressive, often biting and fighting other aeolids, which is so real of them. They always reminded me of lit matches
Acanthodoris lutea / orange-peel doris. Its bright aposamatic colouration is a warning to predators of its distasteful toxicity. They also notably smell of sandalwood! You don't understand. I NEED to hold one
Nembrotha kubaryana / dusky nembrotha. They use the toxins in their prey ascidians to defend themselves against predators. The toxins are stored in their tissues then released in a slimy defensive mucus when alarmed. Nembrotha kubaryana are well-known for their neon appearance
Phyllodesmium poindimiei / Spun Of Light. It's primarily nocturnal and can cast its cerata for protection. Anyway, can we all agree that Spun Of Light is the most awesome name for a sea slug ever? I mean, look at it. That's a sea slug spun of light if I've ever seen one
The one with the dark, gold tipped protrusions on it's back (called cerrata) is Hilton's aeolid (Phidiana hiltoni), & the fluffy, cream colored one is a warty shag-rug nudibranch (Aeolidia loui). I don't know how aware they were of each other, but I was delighted that they bumped into each other & ran their oral tentacles over one another before going about their business. I was able to watch the Hilton's aeolid for a while, & it ended up briefly riding on a grainy hermit crab (Pagurus granosimanus), which then began pinching at it's cerrata before giving up on it.
A Hilton’s aeolid nudibranch sea slug (Phidiana hiltoni) patrols the understory of invertebrates and red algae covering the Cannery Row reefs just off the back deck of the Aquarium.
Time for a nudibranch break! This beauty in Monterey Bay National Marine Sanctuary is a Hilton's aeolid. Though small (about 2 inches long), Hilton's aeolids aren't to be trifled with – they're known for picking fights with other nudibranchs!
(Photo: Robin Agarwal. Image description: White sea slug with black, orange, and pink cerata.)
Hilton’s Aeolid (Phidiana hiltoni) is a 5cm long aeolid nudibranch found in the Gulf of Mexico as well as the coast of California and Northern Mexico. While the species has a characteristic reddish-brown stripe across its head, it is also well known for its aggressiveness. In fact, this small sea slug bites and fights other nudibranchs, a trait not too common in other nudibranch species.
Hilton's aeolid (Phidiana hiltoni) is here for your daily nudi-break! This magnificent nudibranch sea slug is known for its pugnacious behavior, often biting and fighting with other aeolids!
This wonderful photo is brought to you by biologist Kate Vylet (Instagram: @katevylet)