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The mouth of the stingray is located on the ventral side of the vertebrate. Stingrays exhibit hyostylic jaw suspension, which means that the mandibular arch is only suspended by an articulation with the hyomandibula .
The Atlantic stingray (Hypanus sabinus) is a species of stingray in the family Dasyatidae, ... sharp cusps that curve towards the corners of the mouth, for gripping ...
The common stingray has a plain coloration and mostly smooth skin. The common stingray has been reported to reach a width of 1.4 m (4.6 ft) and a length of 2.5 m (8.2 ft), though a width of 45 cm (18 in) is more typical. [8] The flattened pectoral fin disc is diamond-shaped and slightly wider than it is long, with narrowly rounded outer corners ...
The southern stingray (Hypanus americanus) is a whiptail stingray found in tropical and subtropical waters of the Western Atlantic Ocean from New Jersey to southern Brazil. [2] It has a flat, diamond-shaped disc, with a mud brown, olive, and grey dorsal surface and white underbelly (ventral surface). [ 3 ]
French naturalist Charles Alexandre Lesueur originally described the bluntnose stingray from specimens collected in Little Egg Harbor off the U.S. State of New Jersey.He published his account in an 1819 volume of the Journal of the Academy of Natural Sciences of Philadelphia, and named the new species Raja say in honor of Thomas Say, one of the founding members of the Academy.
The giant freshwater stingray (Urogymnus polylepis, also widely known by the junior synonym Himantura chaophraya) is a species of stingray in the family Dasyatidae. It is found in large rivers and estuaries in Southeast Asia and Borneo, though historically it may have been more widely distributed in South and Southeast Asia. The widest ...
The pregnancy of a stingray living in a tank without male rays has stirred a sudden interest in parthenogenesis, a scientific term that essentially means virgin birth.
The common stingaree (Trygonoptera testacea) is a species of stingray in the family Urolophidae.The most abundant ray in inshore waters off eastern Australia, it generally inhabits estuaries, sandy flats, and rocky reefs from the shore to a depth of 60 m (200 ft).