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About Calma
Calma is a genus of nudibranchs, shell-less marine gastropod molluscs or sea slugs, and the only member of the family Calmidae. It is characterized by the lacks of an anus and radular teeth mostly fused into a band-like radular ribbon, a trait unique within a majority of the order Nudibranchia. These adaptations are largely a result of their diet of teleost eggs.
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