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Mauremys nigricans (GRAY, 1834)

IUCN Red List - Mauremys nigricans - Endangered, EN

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Higher TaxaGeoemydidae (Geoemydinae), Testudinoidea, Testudines (turtles)
Common NamesE: Redneck Pond Turtle, Kwangtung River Turtle, Black-Necked Pond Turtle
G: Chinesische Rothalsschildkröte
Chinese: 黑颈乌龟 
SynonymEmys nigricans GRAY 1834
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 
DistributionN Vietnam (?), S China (Provinces Kwangtung = Guangdong, Guangxi, possibly Fujian and Yunnan), Hainan, Taiwan

Type locality: “China prope Canton” [= near Gangzhou (=Canton), Guangdong (=Kwangtung) Province, China]  
ReproductionOviparous. Exhibits temperature‐dependent sex determination (TSD) fide Cornejo-Páramo et al. 2020 (and references therein). 
TypesHolotype: BMNH 1947.3.5.35 
CommentSynonymy: 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) 
  • 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
  • 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
  • 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
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