This is a carnivorous nudibranch of the genus Melibe. The entire head forms an expansive mouth, which inflates to smother its prey and then contracts scooping prey in with its probing teeth-like cirri.
Melibe leonina, commonly referred to as the hooded nudibranch, lion nudibranch, or lion’s mane nudibranch, is a species of predatory nudibranch in the family Tethydidae.Species: M. leonina – Wikipedia.
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