Mauremys nigricans (GRAY, 1834)

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Higher Taxa	Geoemydidae (Geoemydinae), Testudinoidea, Testudines (turtles)
Subspecies
Common Names	E: Redneck Pond Turtle, Kwangtung River Turtle, Black-Necked Pond Turtle G: Chinesische Rothalsschildkröte Chinese: 黑颈乌龟
Synonym	Emys nigricans GRAY 1834: 53 Clemmys nigricans STRAUCH 1862 (part.) Damonia nigricans GRAY 1870 Clemmys nigricans — SIEBENROCK 1903 Geoclemys kwangtungensis POPE 1934 Chinemys nigricans FANG 1934 Clemmys kwangtungensis — MELL 1938 (ex errore) Chinemys kwangtungensis — BOURRET 1941 Geoclemys palaeannamitica BOURRET 1941:10 (nomen dubium) Chinemys nigricans — IVERSON & MCCORD 1989 Mauremys nigricans — KING & BURKE 1989 Chinemys nigricans — OBST 2003: 17 Mauremys nigricans — FELDHAM & PARHAM 2004 Chinemys nigricans — MCCORD & JOSEPH-OUNI 2004 Mauremys nigricans — RHODIN et al. 2010 Mauremys nigricans — TTWG 2021
Distribution	N Vietnam (?), S China (Provinces Kwangtung = Guangdong, Guangxi, possibly Fujian and Yunnan), Taiwan Introduced to Hainan (Bu et al. 2023) Type locality: “China prope Canton” [= near Gangzhou (=Canton), Guangdong (=Kwangtung) Province, China]
Reproduction	Oviparous. Exhibits temperature‐dependent sex determination (TSD) fide Cornejo-Páramo et al. 2020 (and references therein).
Types	Holotype: BMNH 1947.3.5.35
Diagnosis	Additional details, e.g. a detailed description or comparisons (1633 characters), are available for collaborators and contributors. Please contact us for details.
Comment	Synonymy: Has been synonymized with Mauremys mutica by various authors (e.g. McDowell 1964). Distribution: Does not ocur in Japan (T. HIKIDA, pers. comm.) Habitat: freshwater (Rivers, swamps, ponds)
References	Abraham, G. 1981. Mauremys nigricans, Dreikielschildkröte - Nachzucht im Zimmerterrarium. Sauria 3 (3): 21-25 - get paper here Anders, Ben And John B. Iverson 2012. Mauremys nigricans (Gray 1834) – Red-Necked Pond Turtle, Chinese Red-Necked Turtle, Kwangtung River Turtle, Black-Necked Pond Turtle. Chelonian Research Monographs No. 5, doi:10.3854/crm.5.068.nigricans.v1.2012 Anonymous 2016. Testudinate China [in both English and Chinese] Testudinate Industry Branch of the China Fishery Association, published on occasion of WCH8; author not explicitly stated, 54 pp. Bour, R. 2008. Global diversity of turtles (Chelonii; Reptilia) in freshwater. Hydrobiologia 595:593–598 - get paper here Bourret, R. 1941. Les tortues de l'Indochine. Institut Océanographique l'Indochine 38:1-235 Bu, Rongping; Jian Wang, Liu Lin, Jichao Wang, Fanrong Xiao & Hai-Tao Shi 2023. Annotated Checklist of Nonmarine Turtles of Hainan Island, China. Chelonian Conservation and Biology Jun 2023 Vol. 22, No. 1: 80-88 - get paper here Buskirk, James R. 1989. New locality records for Chinese non-marine chelonians [Chinemys reevesii nigricans, Cistoclemmys flavomarginata, Cuora galbinifrons hainanensis pani, Mauremys mutica, Clemmys Oscadia sinensis, Sacalia bealei quadriocellata, Platysternon megacephalum Chinese Herpetological Research 2 (2): 65-68 Cornejo-Páramo, P., Lira-Noriega, A., Ramírez-Suástegui, C. et al. 2020. Sex determination systems in reptiles are related to ambient temperature but not to the level of climatic fluctuation. BMC Evol Biol 20: 103 - get paper here Feldman, C. R. & Parham, James Ford 2004. Molecular Systematics of Old World Stripe-Necked Turtles (Testudines: Mauremys). Asiatic Herpetological Research 10: 28-37 - get paper here Gray, J.E. 1834. Characters of several new species of freshwater tortoises (Emys) from India and China. Proc. Zool. Soc. London 1834: 53-55 - get paper here HU, Qiping; HUANG Chengxin, XU Shuru, ZHANG Qiuming, MA Ning, ZHONG Hanming 2013. Primary Phylogenies of Mauremys guangxiensis and Mauremys iversoni Inferred from DNA Sequences of Mitochondrial ND4 Gene and Nuclear c-mos Gene. Sichuan Journal of Zoology 32 (2): 180-186 - get paper here Iverson,J.B. & MCCORD,W.P. 1989. The proper taxonomic allocation of Emys nigricans GRAY, Emys muticus CANTOR, and Geoclemys kwangtungensis POPE. Amphibia-Reptilia 10: 23-33 - get paper here McCord, W.P. & Joseph-Ouni, M. 2004. Chelonian Illustrations #16: Pond, Thread, and Four-Eyed Turtles of Eastern Asia. Reptilia (GB) (36): 10-13 - get paper here McDowell, S.B. 1964. Partition of the Genus Clemmys and related problems in the taxonomy of the aquatic Testudinidae. Proc. Zool. Soc. London 143 (2): 239-279. - get paper here Meier, E. 2004. Das Internationale Zentrum für Schildkrötenschutz (IZS) füllt sich mit Leben. Elaphe 12 (2): 60-64 Nguyen, S.V., Ho, C.T. and Nguyen, T.Q. 2009. Herpetofauna of Vietnam. Chimaira, Frankfurt, 768 pp. Obst, F.J. 2003. Sumpfschildkröten. Draco 4 (13): 4-18 - get paper here Pope, Clifford H. 1934. A new emydid turtle of the genus Geoclemys from Kwangtung province, China. American Museum Novitates (691): 1-2 - get paper here Praschag, Peter. 2014. The genesis of Turtle Island: a new zoo, research and conservation center for Chelonians. Turtle Survival 2014: 25 - get paper here Schilde, M. 2004. Asiatische Sumpfschildkröten - Die Familie Geoemydidae in Südostasien, China und Japan. Natur und Tier Verlag (Münster), 192 pp. - get paper here TTWG; Rhodin, A.G.J., Iverson, J.B., Bour, R., Fritz, U., Georges, A., Shaffer, H.B., and van Dijk, P.P. 2021. Turtles of the World: Annotated Checklist and Atlas of Taxonomy, Synonymy, Distribution, and Conservation Status (9th Ed.). In: Rhodin, A.G.J., Iverson, J.B., van Dijk, P.P., Stanford, C.B., Goode, E.V., Buhlmann, K.A., and Mittermeier, R.A. (Eds.). Chelonian Research Monographs 8:1–472. doi:10.3854/crm.8.checklist.atlas.v9.2021. - get paper here Wang, Kai; Jinlong Ren, Hongman Chen, Zhitong Lyu, Xianguang Guo Ke Jiang, Jinmin Chen, Jiatang Li, Peng Guo, Yingyong Wang, Jing Che 2020. The updated checklists of amphibians and reptiles of China. Biodiversity Science 28 (2): 189-218 - get paper here
External links	IUCN Red List National Center for Biotechnology Information http://www.chrysemys.de/galerie6.htm Google images

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