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Graptemys pearlensis ENNEN, LOVICH, KREISER, SELMAN & QUALLS, 2010

IUCN Red List - Graptemys pearlensis - Endangered, EN

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Higher TaxaEmydidae, Deirochelyinae, Testudinoidea, Testudines (turtles)
Common Names 
SynonymGraptemys pearlensis ENNEN, LOVICH, KREISER, SELMAN & QUALLS 2010
Graptemys pearlensis — RHODIN et al. 2010
Graptemys pearlensis — TTWG 2021 
DistributionUSA (Mississippi, E Louisiana)

Type locality: Mississippi, Copiah County, Pearl River at State Highway 28, near Georgetown  
TypesHolotype: CM 62162 (=). Collected by T.E. Magers, 23 September 1967. D.E. Hahn collection, field number DEH 3400 
DiagnosisDiagnosis: A high-domed Graptemys with large females and small males, like G. gibbonsi, but typically with a single, generally narrower (relative to G. gibbonsi), vertical, yellow bar on the upper surface of each marginal scute (Fig. 6). A continuous black to brown vertebral stripe is usually present on the carapace. The yellow pigment bar on the 12th marginal scutes is usually 50% or less of those scute lengths along the same axis as the pigment bar (Fig. 7). When longer, the pigment bar tends to be located more distal from the seam between the 12th marginal scutes than it is in G. gibbonsi (Fig. 8). The head pattern is similar to that of G. gibbonsi and usually consists of a prominent, three-pronged, yellow nasal trident on the snout, and the postorbital blotches are connected to the interorbital blotch. 
CommentSynonymy: Praschag et al. 2017 found that G. ernsti, G. gibbonsi, G. pearlensis and G. pulchra are nearly identical genetically and, thus, likely conspecific. Originally, G. pearlensis was recognized as part of G. pulchra by Baur (1893) and subsequent authors until Lovich and McCoy (1992) described G. gibbonsi, which also included what is now recognized as G. pearlensis. Later, Ennen et al. (2010) split G. gibbonsi (sensu lato), restricting G. pearlensis to the Pearl River and G. gibbonsi (sensu stricto) to the Pascagoula River.

Habitat: freshwater (lakes, rivers) 
Etymologynamed after the type locality. 
  • Bour, R. 2008. Global diversity of turtles (Chelonii; Reptilia) in freshwater. Hydrobiologia 595:593–598 - get paper here
  • Crother, B. I. (ed.) 2012. Standard Common and Current Scientific Names for North American Amphibians, Turtles, Reptiles, and Crocodilians, Seventh Edition. Herpetological Circular 39: 1-92
  • Ennen, J.R., LoViCH, J.e., and Jones, R.L. 2016. Graptemys pearlensis Ennen, Lovich, Kreiser, Selman, and Qualls 2010 – Pearl River Map Turtle. In: Rhodin, A.G.J., Pritchard, P.C.H., van Dijk, P.P., Saumure, R.A., Buhlmann, K.A., Iverson, J.B., and Mittermeier, R.A. (Eds.). Conservation Biology of Chelonian Research Monographs 5(9):094.1–8, doi:10.3854/crm.5.094.pearlensis.v1.2016
  • Ennen, Joshua R., Jeffrey E. Lovich and Roger Birkhead. 2012. Graptemys pearlensis. Catalogue of American Amphibians and Reptiles (889): 1-4 - get paper here
  • Ennen, Joshua R.; Jeffrey E. Lovich, Brian R. Kreiser, W. Selman, Carl P. Qualls 2010. Genetic and Morphological Variation Between Populations of the Pascagoula Map Turtle (Graptemys gibbonsi) in the Pearl and Pascagoula Rivers with Description of a New Species. Chelonian Conservation and Biology. 9 (1): 98–113 - get paper here
  • Lindeman, Peter V. 2014. Geographic Distribution: Graptemys pearlensis (Pearl River map turtle). Herpetological Review 45 (2): 280 - get paper here
  • Lindeman, Peter V. 2017. Geographic Distribution: Graptemys pearlensis (Pearl Map Turtle). Herpetological Review 48 (1): 123 - get paper here
  • Lindeman, Peter V.; Ashley G. Gibson, Will Selman, Robert L. Jones, Grover J. Brown, Cybil C. Huntzinger & Carl P. Qualls 2020. Population Status of the Megacephalic Map Turtles Graptemys pearlensis and Graptemys gibbonsi and Recommendations Regarding Their Listing Under the US Endangered Species Act Chelonian Conservation and Biology 19 (2): 165-185 - get paper here
  • McCoy, C. J.; Oscar A. Flores-Villela, Richard C. Vogt, Michael Pappas & J. Kelly McCoy 2020. Ecology of Riverine Turtle Communities in the Southern United States: Food Resource Use and Trophic Niche Dimensions Chelonian Conservation and Biology 19 (2): 197-208 - get paper here
  • Praschag P, Ihlow F, Flecks M, Vamberger M, Fritz U. 2017. Diversity of North American map and sawback turtles (Testudines: Emydidae: Graptemys). Zoologica Scripta 46: 675– 682 - get paper here
  • Praschag, Reiner 2023. Sechs Jahrzehnte Erfahrungen mit der Haltung und Nachzucht von Höcker- und Sägerückenschildkröten der Gattung Graptemys Reiner Praschag. Elaphe 2023 (5): 38-52
  • Praschag, Reiner 2023. Sägerücken- und Höckerschildkröten der Gattung Graptemys – eine artenreiche Gattung der Sumpfschildkröten. Elaphe 2023 (5): 12-23
  • Rogner, M. 2016. Höckerschildkröten – Die Gattung Graptemys. Reptilia 21 (118): 44-50 - 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
  • Selman, Will 2016. Geographic Distribution: Graptemys pearlensis (Pearl Map Turtle). Herpetological Review 47 (4): 625 - get paper here
  • Selman, Will and Robert L. Jones 2017. Population Structure, Status, and Conservation of Two Graptemys Species from the Pearl River, Mississippi. Journal of Herpetology 51 (1): 27–36 - get paper here
  • Selman, Will S 2020. River Turtles and One Dam Lake: Two Imperiled Graptemys Species in the Pearl River and Potential Impacts of the Proposed One Lake Project Chelonian Conservation and Biology 19 (2): 186-196 - 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
  • TTWG; Rhodin, A.G.J.; van Dijk, P.P.; Iverson, J.B. & Shaffer, H.B. [turtle taxonomy working group] 2010. Turtles of the World, 2010 Update: Annotated Checklist of Taxonomy, Synonymy, Distribution, and Conservation Status. Chelonian Research Monographs (ISSN 1088-7105) No. 5, doi:10.3854/crm.5.000.checklist.v3.2010 - get paper here
  • Vogt, R C; McCoy, C J & Pappas, M; 2019. Graptemys pearlensis (Pearl River Map Turtle) Reproduction. Herpetological Review 50 (3): 557-558 - get paper here
  • Vučenović, Jelena & Peter V. Lindeman 2021. The Diets of the Pearl and Pascagoula Map Turtles (Graptemys pearlensis and Graptemys gibbonsi). Herpetologica Jun 2021 Vol. 77, No. 2: 121-127 - get paper here
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