marine slug

The Sea Sheep (Costasiella kuroshimae) is a sea slug native to the Philippines and a few Japanese islands. This slug conducts kleptoplasty where it will steal chloroplasts from photosynthetic algae and use it to photosynthesize sugars for itself. 

The Alabaster Nudibranch can be found in the temperate waters of the Pacific, from Alaska to California and along the coasts of Russia and Japan. The beautiful, wispy white tipped cerata are actually the animal’s lungs. But don’t let it’s delicate form fool you, this nudi’s jaws are strong enough to crack open the shell of a snail, one of its preferred meals - photo taken at Seattle, Washington

Valentine’s Day is coming up, but this is no ordinary rose – it’s a Hopkins’ rose! 

This bright pink sea slug can be spotted in the tidepools of Monterey Bay National Marine Sanctuary. When tidepooling in search of these little invertebrates, tread lightly! Tidepools are fragile habitats and it’s all too easy to crush their tiny inhabitants. 

(Photo: Steve Lonhart/NOAA)


Name: Pectenodoris Aurora

My personal name: Agender femme slug (see previous post) 🌸🌹🌺🌼

Location: Philippines, Indonesia, Japan

Size: 0.8-1.2 cm long (smol)

Commonality: Rare (I’m guessing it’s rare considering how little information I was able to find :/)


This friendly sea slug, called costasiella kuroshimae, is a very incredible species of ophistobranch! It is a sacoglass sea slug and is one of the few animals that can photosynthesize. I finally finished crocheting it and listed them on etsy! They make perfect gifts for scuba divers, marine biologists, and anyone who can appreciate the eccentricities of a green, photosynthetic sea creature! 

Available for adoption here. As always, crocheted with love. 

anonymous asked:

what are your feelings on snails and slugs?? (i know they're different creatures completely but i wanna know your thoughts on both)

Slugs are effectively just naked snails, and I find their nudity offensive and gross. Snails are pretty cool, though. I find cone snails (marine, tropical) particularly interesting - their shells are very common as decorations, but while living, cone snails possess barbed ‘harpoons’ with which they can deliver extremely potent venom - larger species are capable of killing humans with a sting, while smaller species are pretty mild. You’ve seen their shells before:

I first learned about them when I was nine, at a marine biology camp in Florida. I picked one up and an instructor shouted a warning at me to drop it (though it was not a deadly species). I was kind of humiliated, because I prided myself on being The Guy With an Encyclopedic Knowledge of All Things Cool and was the top ‘pupil’ of the camp, but I’d never heard of cone snails! Everyone else at the camp was local and already knew about cone snails, so it really stung my ego to know that all the other campers who were NOT zoology savants - or even interested in science - knew something I didn’t. So… cone snails have kind of become a weird personal symbol of humility to me, if that makes sense. 

Sea slugs, however, take the cake. It’s an imprecise and unscientific label, and many are more closely related to terrestrial snails than slugs. But goddamn - they’re THE most breathtakingly beautiful creatures in existence! I ADORE nudibranchs. Like, holy shit, they’re so fucking COOL. I would wear jewelry made to look like nudibranchs! Everyone would! They look like aliens, and some are so colorful that I want to write a personal letter to The Creator to thank it for my rods and cones and visual cortex just so I can behold the beauty of a nudibranch.

Nembrotha Kubaryana

Felimare californiensis

Glaucus atlanticus (these guys eat Portugese man o’ wars and steal their venom, so they can deliver dangerous stings if you pick them up)

Cyerce nigricans (my personal favorite…)

Chromodoris kuniei

Janolus barberensis

Chromodoris bullocki

Dirona Nudibranch

Nudibranchs are wonderful marine slugs that come in a variety of astonishing colors and varieties. They are by far my favorite animal to see scuba diving!

This particular species, commonly referred to as a “Sea Lemon” (can you see why?) lives from California up to Alaska. It eats sea sponges and is both male and female! A crochet plush nudibranch would make the perfect gift for a marine biologist, a scuba diver, or anyone who loves sea creatures.

The circle of life: Fairly common in Monterey Bay National Marine Sanctuary, this sea slug, Navanax inermis, is a colorful predator of nudibranchs like Hermissenda opalescens here. 

In this photo, you can see Navanax’s mouth preparing for the hunt – and the nudibranch will be gone in the blink of an eye. 

(Photo: Steve Lonhart/NOAA)