Berthelinia caribbea is a species of a sea snail with a shell comprising two separate hinged pieces or valves. It is a marine gastropod mollusc in the family Juliidae.

Distribution The type locality for this species is Port Royal, Jamaica.Jensen K. R. (November 2007). "Biogeography of the Sacoglossa (Mollusca, Opisthobranchia)" . Bonner zoologische Beiträge 55(2006)(3-4): 255–281.

Description This species has a translucent greenish colour. There may be a few brown lines on the body and the head.

Ecology Berthelinia caribbea feeds on Caulerpa verticillata.

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