Phrynops
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Sometimes called the bearded toadheads but better known by their scientific name of Phrynops this genus of turtles has often been a bit of a dumping ground for the short-necked South American turtles of the family Chelidae.
The genus is widely distributed in South America found in the Orinoco to Amazon and São Francisco to Paraná and adjacent river basins of Colombia, Venezuela, the Guianas, Brazil, Paraguay, Uruguay and northeastern Argentina (Iverson, 1992).[1]
A turtle of the genus Phrynops generally achieves thermoregulation through areal basking. In order to best attain its goal, it tends to increase its basking time during mid-day during the winters to make up for the cold. Other factors such as food intake and reproduction underwater also influence the way it controls the temperature of its body. Although this is the main way it is able to maintain body temperature, food intake and reproduction rates are also influential in the matter.
Species
Listed alphabetically by specific name.[2]
- Phrynops geoffroanus (Schweigger, 1812)Script error: No such module "Check for unknown parameters". – Geoffroy's toadhead turtle, Geoffroy's side-necked turtle[3]
- Phrynops hilarii (A.M.C. Duméril & Bibron, 1835)Script error: No such module "Check for unknown parameters". – Hilaire's toadhead turtle, Hilaire's side-necked turtle[4]
- Phrynops tuberosus (W. Peters, 1870)Script error: No such module "Check for unknown parameters". – Cotinga River toadhead turtle[5]
- Phrynops williamsi Rhodin & Mittermeier, 1983Script error: No such module "Check for unknown parameters". – William's toadhead turtle, William's South American side-necked turtle[6]
- †Phrynops paranaensis (Wieland, 1923)Script error: No such module "Check for unknown parameters".[7][8]
References
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- ↑ lverson, J.B. (1992). Revised Checklist with Distribution Maps of the Turtles of the World. Richmond, Indiana: Privately Printed. 363 pp.
- ↑ Phrynops, The Reptile Database
- ↑ Schweigger, Augustus F. (1812). "Prodromus monographiae Cheloniorum ". Königsberger Archiv für Naturwissenschaft und Mathematik 1: 271–368, 406–462. (Emys geoffroana, new species, pp. 301–302). (in Latin).
- ↑ Duméril, André Marie Constant; Bibron, Gabriel (1835). Erpétologie Générale ou Histoire Naturelle Complète des Reptiles. Tome Second. Paris: Roret. 680 pp. (Platemys hilarii, new species, pp. 428–430). (in French).
- ↑ Peters, Wilhem Carl Hartwig (1870). "Über Platemys tuberosa, eine neue Art von Schildkröte aus British-Guiana ". Monatsberichte der Königliche Preussischen Akademie der Wissenschaften zu Berlin. 1870 (Mai): 311-313. (Platemys tuberosa, new species, pp. 311–313 + Plates 1–2). (in German).
- ↑ Rhodin, Anders G.J.; Mittermeier, Russell A. (1983). "Description of Phrynops williamsi, a new species of chelid turtle of the South American P. geoffroanus complex". pp. 58-73. In: Rhodin, A.G.J.; Miyata, K. (Editors) (1983). Advances in Herpetology and Evolutionary Biology. Essays in Honor of Ernest E. Williams. Cambridge, Massachusetts: Museum of Comparative Zoology.
- ↑ Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".
- ↑ Phrynops at Fossilworks.org
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