In some cases though, you can get fish that like to eat planaria. “Having found [an example] by following its smell, a pearlfish will dive into the anus headfirst. The pearlfish will live in the sea cucumber’s anus, backing into the … Sea cucumbers are echinoderms from the class Holothuroidea.They are marine animals with a leathery skin and an elongated body containing a single, branched gonad.Sea cucumbers are found on the sea floor worldwide. Best Dining in Pearl, Mississippi: See 2,232 Tripadvisor traveler reviews of 81 Pearl restaurants and search by cuisine, price, location, and more. Why not take a look at some of the work Pearlfisher has carried out to help give a range of world-class brands iconic status. The number of holothurian (/ ˌ h ɒ l ə ˈ θj ʊər i ə n, ˌ h oʊ-/) species worldwide is about 1,717 with the greatest number being in the Asia Pacific region. Parasitic pearlfish eat this coelom and the gonads, as if the sea cucumber wasn’t violated enough already (Nielsen 1999). They are slender, elongated fish with no scales, translucent bodies, and dorsal fin rays which are shorter than their anal fin rays. Some pearlfish have been known to nip at the respiratory system of the sea cucumber, but it does not seem to affect the host in any way. Pearlfish are marine fish in the ray-finned fish family Carapidae.Pearlfishes inhabit the tropical waters of the Atlantic, Indian, and Pacific Oceans at depths to 2,000 m (6,600 ft), along oceanic shelves and slopes. What does pearlfish mean? Since it is a worm, most fish that eat live foods do not mind eating them. Most sea cucumbers will expel what is known as cuvierian tubes (sections of the respiratory tree) when they are … The pearlfish is a long, slim fish. Definition of pearlfish in the dictionary. Relationship: Commensalism "The pearlfish uses the sea cucumber for a hide-out from predators. They have no scales but they do have long fins that run along the length of their bodies. Presumably it’s not ideal to have a fish up your butt, but it could be worse. “Sea cucumbers are [the pearlfish’s] most infamous hosts,” National Geographic adds. They can also help to keep the planaria numbers low in your tank. And, naturally, pearlfish can occasionally be found within sea cucumbers. (Other pearlfish take the opposite approach, reversing in tail-first.) The following are our top picks for aquarium fish that will eat … As you can see, Carapidae is a fascinating fish family because of their morphology and behavior. Fish That Eat Planaria. Information and translations of pearlfish in the most comprehensive dictionary definitions resource on … (Pun intended). Meaning of pearlfish. Some pearlfish species are harmless, simply bumming a free room from the sea cucumbers. Oh so much worse… as other pearlfish species eat the sea cucumber’s gonads from the inside. Click here, to see a pearlfish swimming into a host. Pearlfish are typically found alone, and adults have been known to kill rivals that try to infiltrate the same host.