Nudibranches (sea slugs). The bottom left photo is of sea slug egg ribbons.
icarusglass: thick horned aeolid nudibranchs feed on tunicates
(photography by david hall)
1. Crown Jellyfish
Found in a canyon about 5,000 feet (1,500 meters) deep, this unidentified jellyfish is likely a type of Atolla, a genus of crown jellyfish that dwells only at depth. Photograph courtesy NIWA
2. ”Mickey Mouse” Squid
Commonly called a “mickey mouse” squid, this small sepiolid was discovered about 3,000 feet (900 meters) deep on a canyon wall. Photograph courtesy NIWA
3. Cup Coral
Unlike reef-building corals that form giant colonies, cup corals—such as this Stephanocyathus platypus, found 3,200 feet (1,000 meters) down—live solitary lives in their cuplike limestone exterior skeletons, according to Monterey Bay Aquarium. Photograph courtesy NIWA
4. Honeycomb Glass Sponge
With a silicon-based skeleton, a new species of “beautiful and fragile” honeycomb glass sponge of the Farreagenus was found on a seamount at 3,100 feet (950 meters) deep—and it wasn’t alone. Photograph courtesy NIWA
The Tangaroa Seamount offered up a new species of tonguefish in the Symphurusgenus (pictured). Photograph courtesy NIWA
6. Coral, With a Side of Crab
Pictured with a crab emerging from its middle, this likely new species of Epizoanthuscoral has polyps that, when extended, resemble its close relative the sea anemone. Photograph courtesy NIWA
7. Sea Slug
A potential new species of sea slug was caught in a canyon at depths of 4,100 feet (1,250 meters). Photograph courtesy NIWA
8. Snake Stars
Yellowish snake stars of the species Asteroschema bidwillae were caught on an undersea peak called Tangaroa Seamount at a depth of 4,000 feet (1,220 meters). Photograph courtesy NIWA
9. UroptychusSquat Lobster
Found between depths of 2,130 feet (650 meters) and 4,600 feet (1,400 meters), this squat lobster of the Uroptychusgenus isn’t the first known specimen of its kind, but its species hasn’t yet been formally recognized. Photograph courtesy NIWA
The tonguefish is quite possibly the derpiest looking animal I have ever seen.
Source: National Geographic
Chromodoris willani by Samantha Craven
This species of nudibranch is named for the renowned nudibranch taxonomist Dr. Richard C. Willan.
Chromodoris willani is similar in appearance to Chromodoris lochi, Chromodoris boucheti and Chromodoris dianae. This species can be distinguished by the very prominent white specks found on the gills and rhinophores. Individuals in this species can range in color from dark blue to a translucent white. All have black stripes with the center-most stripe typically being non-continuous.
Nembrotha chamberlani by Samantha Craven
Nembrotha chamberlaini is white with streaks of black and occasionally yellow splashed across the upper mantle. It has very distinctive bright redgills and rhinophores. The foot and mouth parts are typically light-purple. This nudibranch has a very characteristic color pattern which is typical of species that display warning coloration to other species.
It feeds on ascidians.
Toxic nudibranchs—soft, seagoing slugs—produce a brilliant defense.
Source: National Geographic
Too many sources to name unfortunately. Here’s two though:
Always rebloggin the nudi collages.
The “Donut” Nembrotha is one of the rarest known nudibranchs. The only resident population occurs around a tiny island off eastern Australia, on a patch of sand smaller than one city block. Here the nudibranchs feed on the purplish-black ascidian Sigillina cyanea, shown here.
(by richard ling)
Source: Flickr / rling
This is an alabaster nudibranch (Dirona albolineata) also known as the white-lined dirona. This nudibranch grows to about 5 inches and is found primarily in Puget Sound. Nudibranches are marine gastropod mollusks, see this previous post. For more on nudibranches check out my archive.
My brain keeps interpreting those protrusions as feathers.
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