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Clemmys guttata (SCHNEIDER, 1792)

IUCN Red List - Clemmys guttata - Endangered, EN

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Higher TaxaEmydidae, Emydinae, Testudinoidea, Testudines (turtles) 
Subspecies 
Common NamesE: Spotted Turtle
G: Tropfenschildkröte 
SynonymTestudo guttata SCHNEIDER 1792
Testudo anonyma SCHNEIDER 1792 (nomen nudum)
Testudo punctata SCHOEPFF 1792
Clemmys guttata — STRAUCH 1862
Clemmys guttata — WRIGHT 1918: 56
Clemmys guttata — CONANT & COLLINS 1991: 50
Clemmys guttata — CROTHER 2000
Clemmys guttata — FELDMAN & PARHAM 2002
Clemmys guttata — TTWG 2014 
DistributionCanada (S Ontario, Quebec),
USA (along the Atlantic Coastal Plain in Maine, SE New Hampshire, Massachusetts, Connecticut, S New York, Pennsylvania, New Jersey, Delaware, Maryland, Virginia, West Virginia, North Carolina, South Carolina, Georgia, N Florida, Ohio, Indiana, Michigan, NE Illinois)

Type locality: vicinity of Philadelphia, Pennsylvania (designated by MITTLEMAN 1945)  
Reproductionoviparous. 
TypesType: BMNH 1853.11.30.25 (and possibly additional specimens). 
Diagnosis 
CommentType species: Clemmys guttata is the type species of the genus Clemmys RITGEN, 1828. HOLMAN & FRITZ 2001 and FELDMAN & PARHAM 2002 suggested to treat Clemmys as a monotypic genus with C. guttata as its sole member. However, both author teams suggested different names for the other members of Clemmys (marmorata, muhlenbergii, insculpta).

Illustrations: Picture in Draco 13 (4): 96 (2003).

Habitat: freshwater (swamps, ponds, rivers) 
EtymologyClemmys = tortoise.
Named after Latin “guttata” for spotted, referring to the scattered yellow spots on the carapace. 
References
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  • Barnwell, Mary E.;Meylan, Peter A.;Walsh, Timothy 1997. The spotted turtle (Clemmys guttata) in central Florida. Chelonian Conserv. Biol. 2 (3): 405-408
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  • Bentley, C.C.; Knight, J.L. 1993. The oldest spotted turtle: Clemmys guttata (Testudines: Emydidae) from the Late Pleistocene (Rancholabrean) Ardis Local Fauna, Dorchester County, South Carolina. South Carolina Geology 36:59-63
  • Bickham, John W.;Lamb, Trip;Minx, Patrick;Patton, John C. 1996. Molecular systematics of the genus Clemmys and the intergeneric relationships of Emydid turtles. Herpetologica 52 (1): 89-97 - get paper here
  • Bour, R. 2008. Global diversity of turtles (Chelonii; Reptilia) in freshwater. Hydrobiologia 595:593–598
  • Buchanan, Scott W.; Bill Buffum, and Nancy E. Karraker 2017. Responses of a Spotted Turtle (Clemmys guttata) Population to Creation of Early-successional Habitat Herpetological Conservation and Biology 12 (3) - get paper here
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  • Howell, Hunter J., Donald G. McKnight and Richard A. Seigel. 2016. A novel method of collecting Spotted Turtles (Clemmys guttata). Herpetological Review 47 (2): 202-205
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  • Litzgus, Jacqueline D., Frances Bolton and Albrecht I. Schulte-Hostedde. 2008. Reproductive output depends on body condition in spotted turtles, Clemmys guttata. Copeia 2008 (1): 86-92 - get paper here
  • Litzgus, Lacqueline D.;Brooks, Ronald J. 1998. Testing the validity of counts of plastral scute rings in spotted turtles, Clemmys guttata. Copeia 1998 (1): 222-225 - get paper here
  • Lovich, J.E. & Jaworski, T.R. 1988. Annotated checklist of Amphibians and Reptiles reported from Cedar Bog, Ohio. Ohio J. Sci. 88 (4): 139-143 - get paper here
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  • Rowe, J. W., J. R. Gradel, et al. 2012. Sexual dimorphism in size and shell shape, and dichromatism of Spotted Turtles (Clemmys guttata) in southwestern Michigan. Amphibia-Reptilia 33(3-4): 443-450 - get paper here
  • Rowe, John W.; Jessica R. Gradel, and Charles F. Bunce 2012. Effects of Weather Conditions and Drought on Activity of Spotted Turtles (Clemmys guttata) in a Southwestern Michigan Wetland. The American Midland Naturalist Jan 2013, Vol. 169, No. 1: 97-110. - get paper here
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  • Schaefer, I. 1994. Haltung und Zucht der Tropfenschildkröte (Clemmys guttata) Salamandra 30 (1): 22-32 - 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
  • Seburn, David C. 2012. Why didn’t the Spotted Turtle (Clemmys guttata) cross the road? Herpetology Notes 6: 527-530 - get paper here
  • Seidel, Michael E. & Carl H. Ernst 2017. A Systematic Review of the Turtle Family Emydidae Vertebrate Zoology 67 (1): 1–122 - get paper here
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  • Steiner, H. M. 1977. Lebensraumwahl seniler Clemmys c. caspica in der Osttürkei (Reptilia, Testudines, Emydidae) Salamandra 13 (1): 53 - get paper here
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  • 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
  • Ward, F. P.;Hohmann, C. J.;Ulrich, J. F.;Hill, S. E. 1976. Seasonal microhabitat selections of spotted turtles (Clemmys guttata) in Maryland elucidated by radioisotope tracking. Herpetologica 32 (1): 60-64 - get paper here
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  • Yagi, Katharine T. and Jacqueline D. Litzgus 2012. The Effects of Flooding on the Spatial Ecology of Spotted Turtles (Clemmys guttata) in a Partially Mined Peatland. Copeia 2012 (2): 179-190. - get paper here
 
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