Carapus
Carapus is a genus of pearlfishes, with these currently recognized species:Carapus acus Carapus bermudensis Carapus dubius Carapus mourlani Carapus sluiteri
The Carapus belongs to the Carapidae family; they are described as eel-like fishes. This particular organism is considered parasitic because it lives inside different invertebrates. These invertebrates include holothurians, sea stars, and bivalves. The Carapus live in connection with several species of sea cucumbers and starfish.