Sea butterfly

Credit: ALEXANDER SEMENOV/SCIENCE PHOTO LIBRARY

Caption: Sea butterfly (Limacina helicina). Sea butterflies are swimming predatory marine sea snails. They have two wing-like outgrowths (parapodia, lower right) derived from their foot, which they continually flap to swim through the water. They use a mucous web to trap small aquatic organisms such as crustaceans and plankton. Photographed in the White Sea, Russia.

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Keywords: 1, animal, aquatic, barents sea, biological, biology, black background, cut out, cut outs, cut-out, cut-outs, cutout, cutouts, fauna, flapping snail, gastropod, holoplankton, holoplanktonic, invertebrate, limacina helicina, marine, marine biology, mollusc, mollusca, mollusk, nature, one, parapodia, parapodium, pelagic, predator, predatory, pteropod, pteropoda, russia, sea butterfly, sea snail, shell, single, thecosomata, under water, underwater, white sea, wildlife, zoological, zoology

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