Leather limpet

Species of sea slug

Onchidella carpenteri, commonly known as the leather limpet, is a species of pulmonate sea slug, a marine gastropod mollusc in the order Systellommatophora and the family Onchidiidae. Members of the family Onchidiidae breathe air using a lung rather than gills, as they are more closely related to terrestrial slugs rather than the other marine gastropods also informally referred to as sea slugs.

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