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Platemys platycephala (SCHNEIDER, 1792)

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Higher TaxaChelidae, Chelinae, Pleurodira, Testudines (turtles) 
SubspeciesPlatemys platycephala platycephala (SCHNEIDER 1792)
Platemys platycephala melanonota ERNST 1984 
Common Names(Western) Twist-neck Turtle 
SynonymTestudo platycephala SCHNEIDER 1792: 264
Testudo planiceps SCHOEPFF 1801 (non Testudo planiceps GRAY 1854)
Testudo martinella DAUDIN 1803
Emys discolor SCHWEIGGER 1812
Emys canaliculata — SPIX 1824
Emys carunculata CUVIER 1831 (nomen nudum)
Emys caniculata — GRAY 1831 (ex errore)
Hydraspis constricta GRAY 1831
Emys martirella SCHINZ 1833 (ex errore)
Platemys Martinella — DUMÉRIL & BIBRON 1835: 407
Platemys platycephala — BOULENGER 1889
Platemys platemys DUNN 1945 (ex errore)
Platemys platycephala — ALDERTON 1988
Platemys platycephala platycephala — GORZULA & SEÑARIS 1999
Platemys platycephala — TTWG 2014

Platemys platycephala melanonota ERNST 1984
Platemys platycephala melanonota ERNST 1984: 347
Platemys platycephala melanonota — FRITZ & HAVAS 2007 
DistributionCaribbean drainages of Venezuela, Guyana, French Guiana, Suriname, Amazon drainages from NE Bolivia, E Ecuador, Peru, SE Colombia, Brazil (Amazonas, Para, Mato Grosso, Roraima)

melanota: Peru, Ecuador; Type Locality: “Vicinity of Galilea, on the Río Santiago, Amazonas, Perú (4°1'S, 77°47'W).” Latitude and longitude more precisely specifi ed by the collector as 4°00'55"S, 77°46'40"W.

Type locality: "Ost-Indien" (in error); restricted to "Cayenne, French Guiana" by Ernst 1983  
Reproductionoviparous. 
TypesHolotype: unlocated (fide Iverson 1992: 47)
Holotype: USNM 224136 [melanonota] 
CommentPlatemys platycephala was the first reptile species for which mosaicism of diploid-triploid specimens was reported (BICKHAM et al. 1985)

Type species: Testudo planiceps SCHOEPFF 1801 is the type species of the genus Platemys WAGLER 1830: 135.

Habitat: freshwater (Swamps, ponds) 
References
  • Barros Molina, F. de; Caldeira Costa, H.; Avelar São Pedro, V. de & Neves Feio, R. 2009. Reptilia, Testudines, Chelidae, Platemys platycephala platycephala: Distribution extension. Check List 5 (3): 714–716 - get paper here
  • Bernarde, Paulo Sérgio;, Reginaldo Assêncio Machado & Luiz Carlos Batista Turci 2011. Herpetofauna da área do Igarapé Esperança na Reserva Extrativista Riozinho da Liberdade, Acre – Brasil. Biota Neotrop. 11 (3): 117-144 - get paper here
  • Bickham, J.W. & B.G. Hanks 2009. Diploid-Triploid Mosaicism and Tissue Ploidy Diversity within Platemys platycephala from Suriname. Cytogenet Genome Res 127: 280-286
  • Bickham, J.W., Tucker, P.K., and Legler, J.M. 1985. Diploid-triploid mosaicism: an unusual phenomenon in side-necked turtles (Platemys platycephala). Science 227: 1591–1593
  • Böhm, Stephan 2013. Notes on Short-Term Movements and Dietary Spectrum of the Twist-Necked Turtle, Platemys platycephala (Testudines: Chelidae) in the Nouragues Reserve, French Guyana. Chelonian Conservation and Biology Jul 2013, Vol. 12, No. 1: 112-118. - get paper here
  • Bonin, F., Devaux, B. & Dupré, A. 2006. Turtles of the World. English translation by P.C.H. Pritchard. Johns Hopkins University Press, 416 pp.
  • Bour, R. 2008. Global diversity of turtles (Chelonii; Reptilia) in freshwater. Hydrobiologia 595:593–598
  • Buchert, P. 2010. Erfolgreiche Haltung und Vermehrung der Rotkopf-Plattschildkröte Platemys platycephala. Elaphe 18 (1): 61-68
  • CATENAZZI, A., LEHR, E. & VON MAY, R. 2013. The amphibians and reptiles of Manu National Park and its buffer zone, Amazon basin and eastern slopes of the Andes, Peru. Biota Neotrop. 13(4): 269-283
  • Cisneros-Heredia, D.F. 2006. Turtles of the Tiputini Biodiversity Station with remarks on the diversity and distribution of the Testudines from Ecuador. Biota Neotrop. 6 (1): 1-16 - get paper here
  • Cole, Charles J.; Carol R. Townsend, Robert P. Reynolds, Ross D. MacCulloch, and Amy Lathrop 2013. Amphibians and reptiles of Guyana, South America: illustrated keys, annotated species accounts, and a biogeographic synopsis. Proceedings of the Biological Society of Washington 125 (4): 317-578; plates: 580-620 - get paper here
  • Duellman, W. E. 1978. The biology of an equatorial herpetofauna in Amazonian Ecuador. Misc. Publ. Univ. Kans. Mus. Nat. Hist. 65: 1-352 - get paper here
  • Duellman, W. E. 2005. Cusco Amazónico: The Lives of Amphibians and Reptiles in an Amazonian Rainforest. Comstock Pub Assoc.
  • Duellman, W.E., & Salas, A.W. 1991. Annotated checklist of the amphibians and reptiles of Cuzco Amazonico, Peru. Occas. Papers Mus. of Natur. Hist., Univ. of Kansas, Lawrence (143): 13 pp. - get paper here
  • Duméril, A.M.C., and G. Bibron. 1835. Erpétologie Générale ou Histoire Naturelle Complète des Reptiles, Vol. 2. Librairie Encyclopédique de Roret, Paris, iv + 680 p. - get paper here
  • Ernst, C H 1987. Platemys Wagler. Twistnecked turtles. Catalogue of American Amphibians and Reptiles ( 405: 1-4 - get paper here
  • Ernst, C.H. 1984. Geographic variation in the Neotropical turtle, Platemys platycephala. Journal of Herpetology 17 (4): 345-355 [1983] - get paper here
  • Ernst,C.H. and Barbour,R.W. 1989. Turtles of the World. Smithsonian Institution Press, Washington D.C. - London
  • Freiberg, M.A. 1945. Una nueva especie de Tortuga del genero Platemys Wagler. Physis. Buenos Aires 20: 19-23
  • Gaffney, Eugene S. 1977. The side-necked turtle family Chelidae: a theory of relationships using shared derived characters. American Museum Novitates (2620): 1-28 - get paper here
  • Gorzula, Stefan & Senaris, J. Celsa 1999. In: Contribution to the herpetofauna of the Venezuelan Guayana. I: a data base. Scientia Guaianae, Caracas, No. 8 [1998], 269+ pp.; ISBN 980-6020-48-0
  • Hoogmoed M.S.; de Avila-Pires T C S 1991. Annotoated checklist of the herpetofauna of Petit Saut, Sinnamary River, French Guiana. Zoologische Mededelingen 65: 53-88 - get paper here
  • Lehr, E. 2002. Amphibien und Reptilien in Peru. Natur und Tier-Verlag (Münster), 208 pp. - get paper here
  • McBee, K., J.W. Bickham, A.G.J. Rhodin, and R.A. Mittermeier. 1985. Karyotypic variation in the genus Platemys (Testudines: Pleurodira). Copeia 1985 (2): 445-449 - get paper here
  • Mendes-Pinto, T. J. & S. Marques de Souza 2011. Preliminary assessment of amphibians and reptiles from Floresta Nacional do Trairão, with a new snake record for the Pará state, Brazilian Amazon. Salamandra 47 (4): 199-206 - get paper here
  • Métrailler, Sébastien 2005. Haltung und Nachzucht der Rotkopf-Plattschildkröte, Platemys platycephala (Schneider, 1792). Emys 12 (4): 28-35.
  • Moraes LJCL, Almeida AP, Fraga R, Rojas RR, Pirani RM, Silva AAA, de Carvalho VT, Gordo M, Werneck FP 2017. Integrative overview of the herpetofauna from Serra da Mocidade, a granitic mountain range in Northern Brazil . ZooKeys 715: 103-159 - get paper here
  • Morato, S.A.A.; Calixto, P.O.; Mendes, L.R.; Gomes, R.; Galatti, U.; Trein, F.L.; Oliveira, F.S.; Ferreira, G.N. 2014. Guia fotográfico de identificação da herpetofauna da Floresta Nacional de Saracá-Taquera, Estado do Pará. Curitiba: STCP Engenharia de Projetos Ltda.; Porto Trombetas: MRN – Mineração Rio do Norte S.A.; 213 p. - get paper here
  • Moravec J., Aparicio J. 2005. Notes on the herpetofauna of Bioceanica and Bolpebra (Provincia Nicolas Suaréz, Departamento Pando, Biolivia). Journal of the National Museum (Prague), Natural History Series 174 (1-4): 95-113
  • Morcatty, Thaís Q., João Valsecchi and Daniel G. Rocha. 2014. Geographical Distribution: Platemys platycephala platycephala (twist-necked turtle). Herpetological Review 45 (4): 657
  • Reynolds, Robert P.; Steve W. Gotte, and Carl H. Ernst 2007. Catalog of Type Specimens of Recent Crocodilia and Testudines in the National Museum of Natural History, Smithsonian Institution. Smithsonian Contributions to Zoology 626: 1-49 - get paper here
  • RIVAS, GILSON A.; CÉSAR R. MOLINA, GABRIEL N. UGUETO, TITO R. BARROS, CÉSAR L. BAR- RIO-AMORÓS & PHILIPPE J. R. KOK 2012. Reptiles of Venezuela: an updated and commented checklist. Zootaxa 3211: 1–64 - get paper here
  • Schneider, J. G. 1792. Beschreibung und Abbildung einer neuen Art von Wasserschildkröte nebst Bestimmungen einiger bisher wenig bekannten fremden Arten. Schriften der Gesellschaft Naturforschender Freunde zu Berlin 10: 259-283 [1791] - get paper here
  • Souza, Franco L. 2004. Uma revisão sobre padrões de atividade, reprodução e alimentação de cágados brasileiros (Testudines, Chelidae) [A review on activity patterns, reproduction, and feeding habits in Brazilian chelid turtles (Testudines, Chelidae)]. Phyllomedusa 3 (1): 15-28 - get paper here
  • TTWG [Peter Paul van Dijk, John B. Iverson, Anders G.J. Rhodin, H. Bradley Shaffer, and Roger Bour] 2014. Turtles of the World, 7th Edition: Annotated Checklist of Taxonomy, Synonymy, Distribution with Maps, and Conservation Status. 000.v7. Chelonian Research Monographs (ISSN 1088-7105) No. 5, doi:10.3854/crm.5.000.checklist.v7.2014 - get paper here
  • Valverde, J. 2010. Schlangenhalsschildkröten. Reptilia (Münster) 15 (85): 16-23 [erratum in 86: 10] - get paper here
  • Wagler, Jean G. 1830. Natürliches System der Amphibien, mit vorangehender Classification der Säugetiere und Vögel. Ein Beitrag zur vergleichenden Zoologie. 1.0. Cotta, München, Stuttgart, and Tübingen, 354 pp.
  • Wirth, Michael 2012. Und das alles für die Schildkröten …. Terraria-Elaphe 2012 (2): 84-89 - get paper here
 
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