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Batomorphi is a clade of cartilaginous fishes, commonly known as rays, this taxon is also known as the superorder Batoidea, but the 5th edition of Fishes of the World classifies it as the division Batomorphi. [2]
Potamotrygon leopoldi is part of a species complex of blackish river rays with contrasting pale spots found in the Tapajós, Xingu and Tocantins basins [3]. River stingrays are almost circular in shape, and range in size from Potamotrygon wallacei, which reaches 31 cm (1.0 ft) in disc width, [9] to the chupare stingray (S. schmardae), which grows up to 2 m (6.6 ft) in disc width. [10]
Stingrays are a group of sea rays, a type of cartilaginous fish.They are classified in the suborder Myliobatoidei of the order Myliobatiformes and consist of eight families: Hexatrygonidae (sixgill stingray), Plesiobatidae (deepwater stingray), Urolophidae (stingarees), Urotrygonidae (round rays), Dasyatidae (whiptail stingrays), Potamotrygonidae (river stingrays), Gymnuridae (butterfly rays ...
A funky-looking marine fish, with its ray fins and pointy nose. It will eat anything it can fit into its mouth – and has the mildly terrifying ability to smash larger prey on rocks to make it ...
Freshwater Atlantic stingrays have only 30–50% the concentration of urea and other osmolytes in their blood compared to marine populations. However, the osmotic pressure between their internal fluids and external environment still causes water to diffuse into their bodies, and they must produce large quantities of dilute urine (at 10 times ...
Batoidea is a superorder of cartilaginous fishes, commonly known as rays.They and their close relatives, the sharks, compose the subclass Elasmobranchii.Rays are the largest group of cartilaginous fishes, with well over 600 species in 26 families.
Sebastes capensis, the false jacopever or Cape redfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is found in the South Atlantic Ocean and may also occur off southern and western South America.
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