10 of the World's Oddest Sea Mollusks
The heavily armored hydrothermal vent snail, the bioluminsecent octopus, the umbrella squid and more pictures of amazing mollusks, from the Marine Census of Life.
By Dan Shapley
Sea Angel
We wouldn't be surprised to find that sea angels are in the same family as, say, the mythological Sirens. They're called angels, but are actually a predatory sea snail. This particular specimen, Platybrachium antarcticum, "flies through the deep Antarctic waters hunting the shelled pteropods (another type of snail) on which it feeds," according to the Marine Census of Life.
Armored Snail
There's no other snail in the world armored like the Crysomallon squamiferum, which was found over a hydrothermal vent deep in the Indian Ocean. The multilayered structure of the shell is called "unlike any other known natural or synthetic engineered armor."
Bioluminescent Octopus
One of the few known octopods known to be bioluminescent (glow with its own light) this Stauroteuthis syrtensis octopus was found about a half mile deep in the Gulf of Maine. Photophores (light-emitting organs) may be positioned to fool prey into swimming right into the mouth of the hunter.
Flamingo Tongue Snail
With a name like Flamingo tongue snail, and the flamboyant coloration to match, you might think that this Cyphoma gibbosum has a shell worthy of collecting. Not so. All its color comes from the soft parts of its body, which envelope its shell unless it's threatened. This specimen was photographed feeding on soft corrals near Grand Cayman in the British West Indies.
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