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Thamnophis conanti ROSSMAN & BURBRINK, 2005

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Higher TaxaColubridae (Natricinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common NamesE: Conant's Gartersnake
S: Jarretera de Conant 
SynonymThamnophis conanti ROSSMAN & BURBRINK 2005
Thamnophis conanti — WALLACH et al. 2014: 720 
DistributionMexico (Puebla-Veracruz state line)

Type locality: Mexico, Puebla-Veracruz state line at Mexico Highway 125 [number in error, it is Highway 150 that extends north from Tehuacan, Puebla, to the state line at Puerto del Aire]  
TypesHolotype: LSUM 75985 (originally USL 23933), an adult female, collected 15 August 1975 by Tom Hardaway. 
DiagnosisDiagnosis: Thamnophis conanti can be distinguished from all other Mexican species of the genus by the following combination of characteristics: (1) maximum DSR 17; (2) maxillary teeth 16-18; (3) top of head unpatterned; (4) two rows of relatively small black spots between the light vertebral and lateral stripes; (5) nuchal blotches predominantly brown; (6) prominence of black bar along posterior suture of SL 5 equal to, or less than, bar along SL 6 and 7 suture; (7) V averaging 150 in males, 144 in females; (8) SC averaging 72 in males, 64 in females; (9) tail of moderate length (mean T/TL 25% in males, 23% in females); (10) prefrontal suture usually slightly longer than the internasal suture (mean PFL/INL 105%); (11) muzzle tip usually moderately broad (mean INR/NR 107%); (12) anterior nasal usually shorter than posterior nasal (mean AN/PN 77%); (13) parietals usually of moderate length (mean FL/PL 75%); and (14) frontal usually of moderate width posteriorly (mean FWP/FWA 75%). 
EtymologyNamed after Roger Conant (1909-2003), American herpetologist. 
  • Canseco-Márquez, L., & Gutiérrrez-Mayén, M.G. 2010. Anfibios y reptiles del Valle de Tehuacán-Cuicatlán. Comisión Nacional para el conocimiento y uso de la biodiversidad, México D.F., Mexico, 302 pp - get paper here
  • HALLAS, JOSHUA M.; THOMAS L. PARCHMAN & CHRIS R. FELDMAN. 2021. Phylogenomic analyses resolve relationships among garter snakes (Thamnophis: Natricinae: Colubridae) and elucidate biogeographic history and morphological evolution. Molecular Phylogenetics and Evolution 107374. [2022 in print] - get paper here
  • Heimes, P. 2016. Snakes of Mexico. Chimaira, Frankfurt, 572 pp
  • Rossman, D.A. & Burbrink, F.T. 2005. Species limits within the Mexican garter snakes of the Thamnophis godmani complex. Occ. Papers Mus. Nat. Science (79): 1-43 - get paper here
  • Torres-Hernández, LA, Ramírez-Bautista A, Cruz-Elizalde R, Hernández-Salinas U, Berriozabal-Islas C, DeSantis DL, Johnson JD, Rocha A, García-Padilla E, Mata-Silva V, Fucsko LA, and Wilson LD. 2021. The herpetofauna of Veracruz, Mexico: composition, distribution, and conservation status. Amphibian & Reptile Conservation 15(2) [General Section]: 72–155 - get paper here
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp.
  • Woolrich-Piña, G. A., E. García-Padilla, D. L. DeSantis, J. D. Johnson, V. Mata-Silva, and L. D. Wilson 2017. The herpetofauna of Puebla, Mexico: composition, distribution, and conservation status. Mesoamerican Herpetology 4(4): 791–884 - get paper here
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