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Fish portal; Bichirs / ˈ b ɪ ʃ ɪər z / and the reedfish comprise Polypteridae / p ɒ l ɪ p ˈ t ɛ r ɪ d iː /, a family of archaic ray-finned fishes and the only family in the order Polypteriformes / p ə ˈ l ɪ p t ə r ɪ f ɔːr m iː z /. [2] All the species occur in freshwater habitats in tropical Africa and the Nile River system ...
Acanthopterygii (meaning "spiny-finned one") is a superorder of bony fishes in the class Actinopterygii.Members of this superorder are sometimes called ray-finned fishes for the characteristic sharp, bony rays in their fins; however this name is often given to the class Actinopterygii as a whole.
Actinopterygii (/ ˌ æ k t ɪ n ɒ p t ə ˈ r ɪ dʒ i aɪ /; from Ancient Greek ἀκτίς (aktis) 'having rays' and πτέρυξ (ptérux) 'wing, fins'), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish [2] that comprise over 50% of living vertebrate species. [3]
Most fish have sensitive receptors that form the lateral line system, which detects gentle currents and vibrations, and senses the motion of nearby fish and prey. [53] Fish sense sounds in a variety of ways, using the lateral line, the swim bladder, and in some species the Weberian apparatus.
Clupeiformes / ˈ k l uː p iː ɪ f ɔːr m iː z / is the order of ray-finned fish that includes the herring family, Clupeidae, and the anchovy family, Engraulidae and sardines. The group includes many of the most important forage and food fish. Clupeiformes are physostomes, which means that their gas bladder has a pneumatic duct connecting ...
The first spinous ray of the dorsal fin is the strongest and most sharp-pointed. The spikedace has seven dorsal fin-rays and typically 9 anal fin-rays. The spikedace skin is olive-gray to light brown above, with a brilliant silver side, often with blue reflections, and with black specks and blotches on the back and upper side.
Sinamiidae is an extinct family of ray-finned fish. [2] They are halecomorph fishes endemic to Early Cretaceous freshwater environments in East and Southeast Asia. Along with Amiidae, it is one of two families that makes up the superfamily Amioidea. [1] The two are distinguished by the shape of their scales. [3]
Acregoliath is an extinct genus of ray-finned fish that existed during the middle of Miocene epoch, about 13.76 to 13.34 million years ago. [1] It is known from very fragmentary remains which consist of several scales that were found in Brazil.