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The payara, Hydrolycus scomberoides, is a species of dogtooth tetra. This predatory fish is found in the Amazon Basin in tropical South America. [ 3 ] [ 4 ] It was the first of four species to be described in the genus Hydrolycus .
Hydrolycus armatus is a species of dogtooth characin found in freshwater of tropical South America. [2] It is sometimes known as Payara, [1] or harm, [3] [4] [5] a name it shares with the related H. scomberoides.
River Monsters is a British wildlife documentary television series produced for Animal Planet by Icon Films of Bristol, United Kingdom.It is hosted by angler and biologist Jeremy Wade, who travels around the globe in search of big and dangerous fish.
JEREMY: "This is the biggest fish of my South American fishing career. A river monster as deadly as any beast of folklore." Like always, Jeremy tossed the fish back in the water.
Hydrolycus is a genus of large dogtooth characins from tropical South America, where found in the Amazon and Orinoco basins, as well as rivers of the Guianas. [1] The genus includes the largest dogtooth characins, reaching up to 1.17 m (3.8 ft) in length. [1]
Fish gills are also the preferred habitat of many external parasites, attached to the gill but living out of it. The most common are monogeneans and certain groups of parasitic copepods, which can be extremely numerous. [18] Other external parasites found on gills are leeches and, in seawater, larvae of gnathiid isopods. [19]
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Like other Hydrolycus species, H. tatauaia has long pointed canine teeth that are used to spear their prey, generally smaller fish. [5] The body and head are silvery, and there is a vertically elongated dark spot behind the opercle. The tail is reddish to orange. [3] [5] [6] The species name tatauaia is of Tupi origin and means "fire tail".