Janthina janthina
Distribution:
Worldwide in the warm waters of tropical and temperate seas.
Habitat:
Just beneath the sea-air interface.
Size:
30-40 mm
Diet:
Feeds on jellyfish, Velella velella, Physalia physalis.
Predators:
Fish, birds, sea turtles, other molluscs and nudibranchs.
Useful Facts or Characters:
A marine gastropod, commonly called the violet snail or purple snail for its bright color.
Natural History:
Janthina secretes a bubble filled raft made of mucus to stay afloat at the sea surface.
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