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Graptemys pseudogeographica (GRAY, 1831)

IUCN Red List - Graptemys pseudogeographica - Least Concern, LC
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Higher TaxaEmydidae, Deirochelyinae, Testudinoidea, Testudines (turtles)
SubspeciesGraptemys pseudogeographica pseudogeographica (Gray 1831)
Graptemys pseudogeographica kohnii (BAUR 1890) 
Common NamesE: pseudogeographica: False Map Turtle
E: kohnii: Mississippi Map Turtle
G: Falsche Landkarten-Höckerschildkröte 
SynonymEmys pseudogeographica GRAY 1831
Emys pseudo-grographica — HALLOWELL 1856: 238 (in error)
Graptemys pseudogeographica — GRAY 1863
Malacoclemmys lesueurii — BOULENGER 1889
Malaclemys pseudo-geographica — MCATEE 1907
Graptemys pseudogeographica — ERNST & BARBOUR 1989: 220
Graptemys pseudogeographica — CONANT & COLLINS 1991: 59
Graptemys pseudogeographica — CROTHER 2000
Graptemys pseudogeographica — TTWG 2014
Graptemys pseudogeographica — TTWG 2021

Graptemys pseudogeographica kohnii (BAUR 1890)
Malacoclemmys kohnii BAUR 1890: 263
Graptemys pseudogeographica kohnii — STEJNEGER & BARBOUR 1917
Graptemys pseudogeographica kohnii — ALLEN 1932
Graptemys kohni — CAGLE 1953
Graptemys kohni — HAYNES & MCKOWN 1974
Graptemys kohnii — ERNST & BARBOUR 1989: 221
Graptemys kohnii — CONANT & COLLINS 1991: 59
Graptemys pseudogeographica kohnii — CROTHER 2000
Graptemys pseudogeographica kohnii — HALLMEN 2005
Graptemys pseudogeographica kohnii — RHODIN et al. 2010
Graptemys pseudogeographica kohnii — HENNIG 2013
Graptemys pseudogeographica kohnii — POWELL et al. 2021
Graptemys pseudogeographica kohnii — TTWG 2021

Graptemys pseudogeographica pseudogeographica (GRAY 1831)
Emys lesueurii GRAY 1831
Graptemys pseudogeographica pseudogeographica — STEJNEGER & BARBOUR 1917
Graptemys pseudogeographica pseudogeographica — CROTHER 2000
Graptemys pseudogeographica pseudogeographica — RHODIN et al. 2010
Graptemys pseudogeographica pseudogeographica — POWELL et al. 2021
Graptemys pseudogeographica pseudogeographica — TTWG 2021 
DistributionUSA (primarily in large streams of the Mississippi River drainage from Minnesota, Wisconsin, Iowa, Illinois, Missouri, Kansas, NE Oklahoma, Nebraska, South Dakota, Oklahoma, NE Texas, Louisiana, Arkansas, NW Mississippi, Tennessee, W Kentucky, Indiana, Ohio, Alabama)
Mexico (Querétaro)

Type locality: Not stipulated; from Wabash River, New Harmony, Indiana, U.S.A., according to LeSueur 1827 and "Etats-Unis, Indiana, rivière Wabash, entre MontVernon et Chaumetown (=Shawneetown), c'est-à-dire près du confluent de la Wabash et de l'Ohio" according to Bour and Dubois 1983 (cited after KING & BURKE 1989).

kohnii: USA (Arkansas, Kansas, Kentucky, Louisiana, Mississippi, Missouri, Oklahoma, Tennessee, Texas)

pseudogeographica: USA (Illinois, Indiana, Iowa, Kansas, Kentucky, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, Tennessee, Wisconsin)

pseudogeographica: introduced to Florida (Krysko et al. 2011)  
Reproductionoviparous. Exhibits temperature‐dependent sex determination (TSD) fide Cornejo-Páramo et al. 2020 (and references therein). 
TypesLectotype: MNHN-RA 9147; paralectotype: MNHN-RA 4100, MNHN-RA 4100A, MNHN-RA 9136, MNHN-RA 9137, MNHN-RA 9139 and MNHN-RA 9146; MNHN-RA 9147 designated as lectotype by Bour and Dubois 1983.
Syntypes: unlocated fide Iverson 1992: 186 [kohnii] 
DiagnosisAdditional details, e.g. a detailed description or comparisons (2766 characters), are available for collaborators and contributors. Please contact us for details. 
CommentSynonymy: Graptemys pseudogeographica kohnii (Baur, 1890) has been raised to species status, but later again synonymized with pseudogeographica (Vogt 1993). CONANT & COLLINS 1991 treat kohnii and pseudogeographica as separate species but point out that their relationships are controversial.

Diet: omnivore.

Habitat: freshwater (lakes, rivers)

Similar species: Juvenile Graptemys kohnii closely resemble
juvenile G. oculifera in skull characteristics, and these species may be closely allied. Ewert (1979) conducted incubation studies on Graptemys from Winona, Minnesota, and some clutches yielded both the kohnii and pseudogeographica patterns of head striping. Further studies using different incubation temperatures resulted in variable numbers of kohnii-type hatchlings from each clutch; more kohnii hatched at 25°C than at 30°C. The relationship between these two species needs additional study. (Ernst & Barbour 1989) 
Etymologynot genuine map-like; referring to its resemblance of Graptemys geographica 
References
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