Search results
Results from the WOW.Com Content Network
Once C. exigua replaces the tongue, some feed on the host's blood and many others feed on fish mucus. [clarification needed] In the event of the death of the host fish, C. exigua, after some time, detaches itself from the tongue stub and leaves the fish's oral cavity. It can then be seen clinging to its head or body externally.
Osteoglossiformes / ˌ ɒ s t iː oʊ ˈ ɡ l ɒ s ɪ f ɔːr m iː z / (Greek: "bony tongues") is a relatively primitive order of ray-finned fish that contains two sub-orders, the Osteoglossoidei and the Notopteroidei. All of at least 245 living species inhabit freshwater.
A preserved tongue sole at a lab. Tonguefishes are flatfish in the family Cynoglossidae. They are distinguished by the presence of a long hook on the snout overhanging the mouth, and the absence of pectoral fins. Their eyes are both on the left side of their bodies, which also lack a pelvic fin. [2]
These fish are best kept with live or frozen feed and they easily outgrow the tank within eight to ten months. An aquarium with the minimum diameter of 6 by 3.5 feet (1.8 by 1.1 m) and 300 US gallons (1,100 L; 250 imp gal) is suggested as a bare minimum but 400–800 US gallons (1,500–3,000 L; 330–670 imp gal) is the best way to go. [ 9 ]
Distinctively, these fish have no jaws. [15] Cartilaginous fish such as sharks also have simple, and presumably primitive, skull structures. The cranium is a single structure forming a case around the brain, enclosing the lower surface and the sides, but always at least partially open at the top as a large fontanelle.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
The word sole in English, French, and Italian comes from its resemblance to a sandal, Latin solea. [2] [3] In other languages, it is named for the tongue, e.g. Greek glóssa (γλώσσα), German Seezunge, Dutch zeetong or tong or the smaller and popular sliptong (young sole), Hungarian nyelvhal, Spanish lenguado, Cantonese lung lei (龍脷, 'dragon tongue'), Arabic lisan Ath-thawr ...
Some fish like carp and zebrafish have pharyngeal teeth only. [30] [31] Sea horses, pipefish, and adult sturgeon have no teeth of any type. In fish, Hox gene expression regulates mechanisms for tooth initiation. [32] [33] While both sharks and bony fish continuously produce new teeth throughout their lives, they do so via different mechanism.