Carapidae

Pearl fish

Carapus acus

Emerges night enters host

• Tropical
• Regional distribution
• Marine fish
• Atlantic Ocean
• Anguilliform
• Compressed cross-section
• Medium
• Tropical fish

Carapus acus is a species of bony fish in the family Carapidae, the pearlfishes, and is native to the Mediterranean Sea and the Atlantic Ocean. It lives as a commensal in association with a sea cucumber, spending the day inside its host and emerging at night to feed.