Jim Cosgrove. The lion’s mane nudibranch (Melibe leonine), is a sea slug like no other. Hooded Nudibranchs in the background. Shaggy Mouse or Shag-Rug Nudibranch * intertidal to 900m size to 10cm southern California to at least north Vancouver Island, BC This species is occasionally seen intertidally. The cold-temperate Atlantic waters off the coast of S Africa revealed two new, sympatric species of Aldisa, the first recorded from the southern hemisphere. Sea Stars also prey on Orange Sea Pens. A “Striped Barrel Shell” beside an urchin spine, giving a sense of how small these animals area. Information relevant to the assessment of critical habitat for Blue, Fin, Sei and North Pacific Right Whales in British Columbia. I do not know. Likely we are kindred in our love of marine biodiversity and the beauty that is sea slugs. The photos below show you what the peak of the spawn looks like. It is generally less than 3 inches long but can grow larger. ©2017 Jackie Hildering. Opalescent Nudibranch egg mass. Sea slugs: 8 photos of the other-worldly creatures that live right here on Earth, Here’s what could happen if you fell into a black hole, 36 amazing photos from the Underwater Photographer of the Year 2020 competition, World’s longest animal discovered in Australian waters, Cheeky lion pic tops 40 side-splitting photos from the animal kingdom, Tiger’s tender moment wins Wildlife Photographer of the Year 2020 competition, South African vets take CT scan of 210kg gorilla, Pay by Direct Debit and get two issues free*, Receive every issue delivered direct to your door with FREE UK delivery. However, it is very difficult to discern the eggs masses of some closely related dorids. I know! I hypothesize that it would have to do with the balance between needing to eat and needing to mate and/or that there is some sort of genetic competition going on. I will never forget the first time I saw one of these tiny sea slugs “flying” underwater. The Great Winged Sea Slug”. Many gastropods have a shell. Two new species belonging to the genus Aldisa were found in the cold-temperate N Pacific waters off southern British Columbia, Canada. E-Fauna BC is a biogeographic atlas of the wildlife species of British Columbia. I dare say however that my hunt involved vastly more beautiful eggs; that the hunt was much more challenging and –  ultimately, much more rewarding! Flabellina cynara. Opalescent nudibranch are a species of ‘sea slugs’, they have rhinophores that are projections which look like horns on their head. That’s an individual egg! The nudibranch … They typically have a flat or tube shaped body as well as branchial plumes, or anal gills. ©Jackie Hildering. Great Winged Sea Slugs don’t have naked gills and adults do have an internal shell when adults. Also known as a “Sea Cherub”. Some information about dive sites and their surrounding landscapes are on the page Location. Image #3 of the Sea Angel. Nudibranch (Nembrotha kubaryana) B O R A C A Y, Philippines 2019. Nudibranchs One of the more colourful creatures found on the ocean floor, sea slugs or nudibranchs (naked gills) are a favourite for divers and photographers. Some species evolved an external anatomy with textures and colours that mimicked surrounding sessile invertebrate animals (often their prey sponges or soft corals) to avoid predators (camouflage). Image location: God's Pocket Bay, Hurst Island, BC Comments: A seasonal nudibranch (summer/fall) that thrives amidst eel-grass and broadleaf kelp beds at shallow depth. It just is. That’s all! Also unlike many dorids, Clown Dorids do not feed on sponges. Eutonina indicans to 3.5 cm across. On May 7th, 2017, I had a chance to dive the same site again and so hoped to find the species who laid the eggs. Collective noun for jellies is “smack”. This species was recently separated from A. papillosa. British Columbia: Harbour publishing, Madeira Park, British Columbia The species most often found off the BC Coast has white lines. ©2016 Jackie Hildering. Also, HOW do they then assemble in numbers like this? Lens selection for Nudibranch photography Compact camera users - should zoom out to get the effect of the 60mm lens listed below. Peltodoris nobilis : White Berthella. Welcome to their weird world. Mar. Cursor over the drop down menus below to browse the atlas pages by species group. 50, 84 (2020). They are found almost anywhere in the sea, from rock pools to the deep sea, in tropical and temperate waters, and even in the Arctic and Antarctica. With no external shells to hide inside, sea slugs have evolved various ways to avoid getting eaten. (Ochre Star beside them.) So why, when your chances of finding a mate as a sea slug are already pretty limited, would you kill another of your kind instead of mating with them? Plowing down into the shell debris! Nudibranch (Nembrotha kubaryana) B O R A C A Y, Philippines 2019. (7) Limapontiidae. © 2014 Jackie Hildering; http://www.themarinedetective.ca. . Berthella californica : White-lined Dirona or Alabaster Nudibranch. See his great image below. The nudibranch anus is not at the back of the creature, or the bottom, but can occur in a number of places across different species. The green colouration comes directly from its food – a leaf sheep retains the algae’s chloroplasts (tiny cellular structures that harness the Sun’s energy to make sugars), and incorporates them into its skin, where they continue to photosynthesise. The polyps filter feed on plankton. Sea Slugs of the Salish Sea: Nudibranchs. Other nudibranchs, as seen especially well on chromodorids, have an intensely bright and contrasting colour pattern that makes them especially conspicuous in their surroundings. Acanthodoris hudsoni : Yellowmargined Cadlina Cadlina luteomarginata: Sea Lemon. 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