Red side-necked turtle

The red side-necked turtle (Rhinemys rufipes), red turtle, red-footed sideneck turtle,[1] William's toadhead turtle, or red-footed Amazon side-necked turtle[5] is a monotypic species of turtle in the family Chelidae. It is found in Colombia and possibly Peru and Brazil.[5] This species is dimorphic in size meaning the sexes show different characteristics.[8] One study found that the largest female out of a group of 24 was 256 mm in carapace length. Out of that same group, the largest male was only 199 mm in carapace length.[8] A study focused on determining how these turtles acquire their sex discovered that it is not environmentally determined rather, it is a genetic sex determination. [9]

Red side-necked turtle
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Testudines
Suborder: Pleurodira
Family: Chelidae
Subfamily: Chelinae
Genus: Rhinemys
Wagler, 1830
Species:
R. rufipes
Binomial name
Rhinemys rufipes
(Spix, 1824)[2]
Synonyms[3][4][5]
Synonymy
  • Emys rufipes Spix, 1824
  • Hydraspis rufipes Bell, 1828
  • Rhinemys rufipes Wagler, 1830[6]
  • Chelys (Hydraspis) rufipes Gray, 1831
  • Platemys rufipes Duméril & Bibron, 1835
  • Phrynops rufipes Gray, 1844
  • Hydraspis rufipes Boulenger, 1889
  • Rhinemys rufipes Baur, 1893[7]

References
  1. Tortoise & Freshwater Turtle Specialist Group 1996. Phrynops rufipes. 2006 IUCN Red List of Threatened Species. Downloaded on 29 July 2007.
  2. Spix, J.B. von. 1824. Animalia nova; sive, Species novae Testudinum et Ranarum, quas in itinere per Brasiliam annis 1817-20 collegit et descripsit. F.S. Hübschmann, München. iv + 53 pp.
  3. Peter Paul van Dijk, John B. Iverson, H. Bradley Shaffer, Roger Bour, and Anders G.J. Rhodin. 2012. Turtles of the World, 2012 Update: Annotated Checklist of Taxonomy, Synonymy, Distribution, and Conservation Status. Chelonian Research Monographs No. 5, pp. 000.243–000.328.
  4. Fritz Uwe; Peter Havaš (2007). "Checklist of Chelonians of the World" (PDF). Vertebrate Zoology. 57 (2): 343–344. ISSN 1864-5755. Archived from the original (PDF) on 2011-05-01. Retrieved 29 May 2012.
  5. Rhinemys rufipes , The Reptile Database
  6. Wagler, J.G. 1830. Natürliches System der Amphibien, mit vorangehender Classification der Säugthiere und Vögel. München: J.G. Cotta’schen Buchhandlung, 354 pp.
  7. Baur, G. 1893. Notes on the classification and taxonomy of the Testudinata. Proc. Amer. Philos. Soc. 31: 210-225
  8. Viana PF, Feldberg E, Cioffi MB, de Carvalho VT, Menezes S, Vogt RC, et al. (September 2020). "The Amazonian Red Side-Necked Turtle Rhinemys rufipes (Spix, 1824) (Testudines, Chelidae) Has a GSD Sex-Determining Mechanism with an Ancient XY Sex Microchromosome System". Cells. 9 (9): 2088. doi:10.3390/cells9092088. PMC 7563702. PMID 32932633.
  9. Viana, P. F., Feldberg, E., Cioffi, M. B., de Carvalho, V. T., Menezes, S., Vogt, R. C., Liehr, T., & Ezaz, T. (2020). The Amazonian Red Side-Necked Turtle Rhinemys rufipes (Spix, 1824) (Testudines, Chelidae) Has a GSD Sex-Determining Mechanism with an Ancient XY Sex Microchromosome System. Cells (Basel, Switzerland), 9(9), 1–. doi:10.3390/cells9092088


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