Cocculiniformia that live on cephalopod beaks are unlikely to be receiving nutrition directly from the beak's chitin substrate. It is more likely that they are feeding and utilizing nutrients from microbes and fungi that are breaking down the chitin on the sea bottom. A similar situation is found in the wood-dwelling cocculiniforms that are found on decaying rather than fresh wood, which is also rich in microbes. Cocculiniforms associated with whale bones are feeding on the sulfate-reduc-ing bacteria that oxidized the lipids found in the bones.
Predators of cocculiniform limpets are not known.
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