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Thamnophis lineri ROSSMAN & BURBRINK, 2005

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Higher TaxaColubridae (Natricinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common Names 
SynonymThamnophis lineri ROSSMAN & BURBRINK 2005
Thamnophis lineri — WALLACH et al. 2014: 723
Thamnophis lineri — MATA-SILVA et al. 2015 
DistributionMexico (Oaxaca)

Type locality: Mexico, Oaxaca, Llano de las Flores, 2786 m elevation.  
TypesHolotype: UTA R-12482, an adult male; collected 8 June 1983 by J. A. Campbell. 
DiagnosisDiagnosis: Thamnophis lineri can be distinguished from all other Mexican species of the genus by the following combination of characteristics: (1) maximum DSR 17: (2) maxillary teeth 18-20; (3) top of head unpatterned; (4) two rows of relatively small black spots between light vertebral and lateral stripes; (5) nuchal blotches predominantly brown; (6) black bar along posterior suture of SL 5 frequently reduced or absent; (7) V averaging 140 in males, 136 in females; (8) SC averaging 62 in males, 55 in females; (9) tail of moderate length (mean T/TL 23.5% in males, 21.5% in females; (10) prefrontal suture usually slightly longer than internasal suture (mean PFL/INL 106%); (11) muzzle tip usually broad (mean INR/NR 116%); (12) anterior nasal usually shorter than posterior nasal (mean AN/PN 76%); (13) parietals usually of moderate length (mean FL/PL 80%); and (14) frontal usually very broad posteriorly (mean FWP/FWA 85%). 
CommentHabitat: pine-oak forest and pine-oak-madroño forest in the Sierra de Juárez portion of the Mesa del Sur in Oaxaca. 
EtymologyNamed after Ernest A. Liner (1925-2010). 
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Burbrink FT, Futterman I. 2019. Female‐ biased gape and body-size dimorphism in the New World watersnakes (tribe: Thamnophiini) oppose predictions from Rensch's rule. Ecol Evol. 00:1–10
  • 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
  • García-Padilla E, DeSantis DL, Rocha A, Mata-Silva V, Johnson JD, Wilson LD. 2020. Conserving the Mesoamerican herpetofauna: the most critical case of the priority level one endemic species. Amphibian & Reptile Conservation 14(2) [General Section]: 73–132 (e240) - get paper here
  • Heimes, P. 2016. Snakes of Mexico. Chimaira, Frankfurt, 572 pp
  • Illescas-Aparicio, M., Clark-Tapia, R., González-Hernández, A., Vásquez-Díaz, Pedro R. & Aguirre-Hidalgo, V. 2016. Diversidad y riqueza herpetofaunística asociada al bosque de manejo forestal y áreas de cultivo, en Ixtlán de Juárez, Oaxaca. Acta Zoológica Mexicana (n.s.) 32(3): 359-369 - get paper here
  • Mata-Silva, Vicente, Jerry D. Johnson, Larry David Wilson and Elí García-Padilla. 2015. The herpetofauna of Oaxaca, Mexico: composition, physiographic distribution, and conservation status. Mesoamerican Herpetology 2 (1): 6–62 - get paper here
  • 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
  • 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.
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