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Geophis pyburni CAMPBELL & MURPHY, 1977

IUCN Red List - Geophis pyburni - Data Deficient, DD
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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Pyburn's Earth Snake
S: Minadora de Pyburn 
SynonymGeophis pyburni CAMPBELL & MURPHY 1977
Geophis pyburni — LINER 1994
Geophis pyburni — WILSON & TOWNSEND 2007: 16
Geophis pyburni — WALLACH et al. 2014: 304
Geophis pyburni — BARRAGAN-RESÉNDIZ et al. 2022 
DistributionMexico (Michoacán: Sierra de Coalcomán, Colima)

Type locality: Rancho La Pastilla, ca. 2.5 km west of Dos Aguas, Sierra de Coalcomán, Michoacán, Mexico, 2164 m elevation.  
Reproductionoviparous 
TypesHolotype: UTA R-4404, University of Texas at Arlington Collection of Vertebrates, female, collected 8 July 1974 by J. A. Campbell. Paratypes: (n=4) UMMZ 138592 (formerly UTA R-4407), other data same as for holotype; UTA R-5895-96, a male and female respectively, and AMNH 113984 (formerly UTA R-5907), a male, same locality and collector as holotype, 2160-2180 m, 26 July 1976 
DiagnosisDiagnosis: Distinguished from other members of the genus by the following combination of characteristics:15 rows of smooth dorsal scales throughout body except for weakly keeled scales in region above vent; no anterior temporal; snout elongate in region of internasalsand nasals, combined length of nasals approximatelyequal to length of loreal; dorsum dark brown, lighter laterally; venter creamish-white; sum of ventrals and subcaudals158 to 171; anterior tip of maxilla toothless. 
CommentDistribution: see map in BARRAGAN-RESÉNDIZ et al. 2022: 273 (Fig. 5) 
EtymologyNamed after Emeritus Professor Dr. William Frank "Billy" Pyburn (1927-2007), who founded in 1956 the specimen collection at the University of Texas, Arlington, that became the Amphibian and Reptile Diversity Research Center. 
References
  • Barragán-Reséndiz, Lesly Montserrat, Pavón-Vázquez, Carlos J., Cervantes-Burgos, Romina Itzel, Trujano-Ortega, Marysol, Canseco-Márquez, Luis, et al. 2022. A New Species of Snake of the Geophis sieboldi Group (Squamata: Dipsadidae) from Estado de México, Mexico. Herpetologica 78 (4): 268-276 - get paper here
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Campbell, Jonathan A. & Murphy, James B. 1977. A new species of Geophis (Reptilia, Serpentes, Colubridae) from the Sierra de Coalcomán, Michoacán, Mexico. Journal of Herpetology 11 (4): 397-403 - get paper here
  • Heimes, P. 2016. Snakes of Mexico. Chimaira, Frankfurt, 572 pp
  • MONTANO-RUVALCABA, C., J. REYES-VELASCO, C. I. GRUNWALD, AND J. M. JONES 2020. Geographic Distribution: Geophis pyburni (Pyburn’s Earth Snake). México: Colima: Municipality Of Comala. Herpetological Review 51: 545.
  • 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.
  • WILSON, L.D. & J.H. TOWNSEND 2007. A checklist and key to the snakes of the genus Geophis (Squamata: Colubridae: Dipsadinae), with commentary on distribution and conservation. Zootaxa 1395: 1-31 - get paper here
 
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