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Tropidodipsas zweifeli (LINER & WILSON, 1970)

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common NamesE: Zweifel’s Snail-Eating Snake
S: Caracolera de Zweifel 
SynonymChersodromus annulatus ZWEIFEL 1954
Tropidodipsas zweifeli LINER & WILSON 1970 (nom. nov.)
Sibon zweifeli — KOFRON 1985
Sibon zweifeli — LINER 1994
Tropidodipsas zweifeli — WALLACH 1995
Tropidodipsas zweifeli — WALLACH et al. 2014: 747
Tropidodipsas zweifeli — GRÜNWALD et al. 2021 
DistributionMexico (Guerrero, Morelos, Puebla)

Type locality: Chilpancingo, Guerrero, Mexico.  
TypesHolotype: MVZ 45030, male (W.W. Brown, between Aug. 1942 and Aug. 1943). 
CommentSynonymy: Scott 1967 synonymized Chersodromus annulatus with Tropidodipsas annulifera.

Distribution: the specimen reported by Grünwald et al. (2016) from Puebla differed slightly in initial scale counts from the numerical ranges presented by Kofron (1988). See Grünwald et al. 2021: 252 (Fig. 10) for a map. 
EtymologyNamed after Richard George Zweifel (1926–2019), American herpetologist. See Cole & Zweifel 2020 for biographical details. 
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Castro-Franco, Rubén, María Guasalupe Bustos-Zagal 1994. List of reptiles of Morelos, Mexico, and their distribution in relation to vegetation types. Southwestern Naturalist 39 (2): 171-175 - get paper here
  • COLE, C. J., AND M. K. ZWEIFEL 2020. Obituaries: Life History and Behavior of Richard George Zweifel (1926–2019). Herpetological Review 51: 189-193.
  • Grünwald, Christoph Imre, Nadia Pérez-Rivera, Iván Trinidad Ahumada-Carrillo, Héctor Franz-Chávez and Brandon Thomas La Forest. 2016. New distributional records for the herpetofauna of Mexico. Herpetological Review 47 (1): 85-90 - get paper here
  • Heimes, P. 2016. Snakes of Mexico. Chimaira, Frankfurt, 572 pp
  • Kofron, C.P. 1988. Systematics of neotropical gastropod-eating snakes: the sartorii group of the genus Sibon. Amphibia-Reptilia 9: 145-168 - get paper here
  • Lemos-Espinal JA, Smith GR 2020. A conservation checklist of the herpetofauna of Morelos, with comparisons with adjoining states. ZooKeys 941: 121-144 - get paper here
  • Liner, Ernest A.; Wilson, Larry David 1970. Changes in the name an generic status of the Mexican snake Chersodromus annulatus Zweifel (Colubridae). Copeia 1970 (4): 786-788 - get paper here
  • Palacios-Aguilar, Ricardo & OSCAR FLORES-VILLELA 2018. An updated checklist of the herpetofauna from Guerrero, Mexico. Zootaxa 4422 (1): 1-24 - get paper here
  • Rodríguez-Robles, Javier A., Good, David A., Wake, David B. 2003. Brief History of Herpetology in the Museum of Vertebrate Zoology, University of California, Berkeley, with a List of Type Specimens of Recent Amphibians and Reptiles. UC Publications in Zoology, 119 pp. - get paper here
  • Scott Jr., N.J. 1967. The colubrid snake, Tropidodipsas annulifera, with reference to the status of Geatractus, Exelencophis, Chersodromus annulatus, and Tropidodipsas malacodryas. Copeia 1967 (2): 280-287 - 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.
  • Wallach,V. 1995. Revalidation of the genus Tropidodipsas GÜNTHER , with notes on the Dipsadini and Nothopsini (Serpentes: Colubridae). Journal of Herpetology 29 (3): 476-481 - get paper here
  • 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
  • Zweifel, Richard G. 1954. A new species of Chersodromus from Mexico. Herpetologica 10: 17-19 - get paper here
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