Mixcoatlus barbouri (DUNN, 1919)

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Higher Taxa	Viperidae, Crotalinae, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies
Common Names	E: Barbour's Montane Pit Viper S: Vibora Colorada
Synonym	Lachesis barbouri DUNN 1919: 213 Bothrops barbouri — AMARAL 1929: 234 Trimeresurus barbouri — SMITH 1941: 61 Porthidium barbouri — WELCH 1994: 101 Cerrophidion barbouri — CAMPBELL & LAMAR 1992 Cerrophidion barbouri — LINER 1994 Cerrophidion barbouri — MCDIARMID, CAMPBELL & TOURÉ 1999: 273 Mixcoatlus barbouri — JADIN et al. 2011 Mixcoatlus barbouri — WALLACH et al. 2014: 457
Distribution	SW Mexico (Guerrero, Sierra Madre del Sur), 2,300 to 2,608 m Type locality: Omilteme, Guerrero, Mexico.
Reproduction	ovoviviparous
Types	Holotype: USNM 46347
Diagnosis	Diagnosis: “A small Lachesis with single subcaudals, 17 rows of scales, and an enlarged frontal shield” (Dunn 1919: 213). Unfortunately we had to temporarily remove additional information as this was scraped by multiple AI companies who sell that data. However, these details, e.g. detailed descriptions (about less than half a page) are available for collaborators and contributors. Please contact us if you need any of this material.
Comment	Venomous! Synonymy: Jadin et al. 2011 removed Agkistrodon browni SHREVE 1938 from the synonymy of Cerrophidion barbouri. Habitat: terrestrial
Etymology	Named after Thomas Barbour (1884-1946), Associate Curator of Reptiles and Amphibians (1923), and, later, Director (1927) of the Museum of Comparative Zoology at Harvard.
References	Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here Campbell, J.A. & Lamar, W.W. 1989. The Venomous Reptiles of Latin America. Comstock Publishing/Cornell University Press, Ithaca Dunn, E.R. 1919. Two new crotaline snakes from western Mexico. Proc. Biol. Soc. Washington 32: 213-216 - get paper here 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 Grünwald, Christoph I.; Jason M. Jones, Hector Franz-Chávez, and Iván T. Ahumada-Carrillo 2015. A new species of Ophryacus (Serpentes: Viperidae: Crotalinae) from eastern Mexico, with commentson the taxonomy of related pitvipers. Mesoamerican Herpetology 2 (4): 388 - get paper here Heimes, P. 2016. Snakes of Mexico. Chimaira, Frankfurt, 572 pp JADIN, ROBERT C.; ERIC N. SMITH and JONATHAN A. CAMPBELL 2011. Unravelling a tangle of Mexican serpents: a systematic revision of highland pitvipers. Zoological Journal of the Linnean Society 163: 943–958 - get paper here Lemos-Espinal, J. A., & Smith, G. R. 2025. The diversity and conservation status of amphibians and reptiles from the Mexican biogeographic province of Sierra Madre del Sur. Nature Conservation, 58: 101-127 - get paper here Loveridge, Arthur 1946. Thomas Barbour, Herpetologist: 1884-1946. Herpetologica 3 (2): 33-39 - get paper here McDiarmid, R.W.; Campbell, J.A. & Touré,T.A. 1999. Snake species of the world. Vol. 1. [type catalogue] Herpetologists’ League, 511 pp. OLIVEIRA-DALLAND, LUIS G.; LAURA R.V. ALENCAR, LEANDRO R. TAMBOSI, PAOLA A. CARRASCO, RHETT M. RAUTSAW, JESUS SIGALA-RODRIGUEZ, GUSTAVO SCROCCHI & MARCIO MARTINS. 2022. Conservation gaps for Neotropical vipers: Mismatches between protected areas, species richness and evolutionary distinctiveness. Biological Conservation 275(109750). - 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 Pérez-Ramos, E., León-Paniagua, L. & Deloya, E.M. 2017. Mixcoatlus barbouri (Barbour’s Montane Pitviper) Diet. Herpetological Review 48 (3): 678. - get paper here Santos-Barrera, G., García, A., Calzada-Arciniega, R. A., Pérez-Cervantes, N. C., & Pacheco-Rodríguez, J. 2021. Herpetofauna in Risk of Extinction: Amphibians and Reptiles in Mexico, Critical Areas, and Conservation Strategies. Imperiled: The Encyclopedia of Conservation (via Researchgate) - get paper here Shreve, B. 1938. A new Agkistrodon from Mexico. Copeia 1938 (1): 9 - get paper here Smith, H.M. 1941. Notes on Mexican snakes of the genus Trimeresurus. Zoologica 26: 61-64. - 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.
External links	IUCN Red List National Center for Biotechnology Information https://www.facebook.com/groups/stshc/posts/236369725254300/ Google images

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