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Crotalus intermedius TROSCHEL, 1865

IUCN Red List - Crotalus intermedius - Least Concern, LC

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Higher TaxaViperidae, Crotalinae, Colubroidea, Alethinophidia, Serpentes, Squamata (snakes) 
SubspeciesCrotalus intermedius intermedius TROSCHEL in MÜLLER 1865
Crotalus intermedius gloydi TAYLOR 1941
Crotalus intermedius omiltemanus GÜNTHER 1895 
Common NamesE: Mexican Smallhead Rattlesnake 
SynonymCrotalus intermedius intermedius TROSCHEL in MÜLLER 1865
Crotalus intermedius TROSCHEL in MÜLLER 1865
Crotalus intermedius intermedius KLAUBER 1952: 9
Crotalus intermedius intermedius — LINER 1994
Crotalus intermedius — MCDIARMID, CAMPBELL & TOURÉ 1999: 286
Aechmophrys (Cottonus) intermedius — HOSER 2009
Crotalus intermedius — WALLACH et al. 2014: 191

Crotalus intermedius gloydi TAYLOR 1941
Crotalus triseriatus gloydi TAYLOR 1941
Crotalus gloydi lautus SMITH 1946
Crotalus intermedius gloydi DAVIS & DIXON 1957
Crotalus intermedius gloydi — LINER 1994
Crotalus intermedius gloydi — BRYSON 2007

Crotalus intermedius omiltemanus GÜNTHER 1895
Crotalus omiltemanus GÜNTHER 1895
Crotalus intermedius omiltemanus KLAUBER 1952: 14
Crotalus triseriatus BOULENGER 1896
Crotalus intermedius omiltemanus — LINER 1994
Crotalus intermedius omiltemanus — BRYSON 2007 
DistributionMexico (disjunct populations in SE Hidalgo, Puebla, SW Tlaxcala, WC Veracruz, Oaxaca, Guerrero)

intermedius: Michoacan, NE Puebla, WC Veracruz, C Oaxaca

gloydi: C Oaxaca, Michoacan; Type locality: Mexico: Cerro San Felip, Oaxaca; E. H. Taylor; 1940.

omiltemanus: C Guerrero  
Reproductionviviparous 
TypesHolotype: lost, originally in Müller collection, later in Bonn (ZFMK); destroyed in World War II, according to R. Mertens (pers. comm.) in Klauber (1952: 10).
Holotype: INHS (= UIMNH) 25070 (23645) [gloydi]
Syntypes: BMNH 1946.1.19.28-29 (both formerly BMNH 93.3.15.11). [omiltemanus]
Holotype: USNM 110598 [Crotalus gloydi lautus] 
Diagnosis 
CommentVenomous!

Crotalus intermedius FISCHER 1882 is a primary homonym of Crotalus intermedius TROSCHEL in MÜLLER 1865 (Holotypus: UMB 435 missing and may be lost).

Nomenclature: Hoser’s 2009 classification and nomenclature has been rejected as unnecessary and unavailable by WÜSTER & BERNILS 2011. 
Etymology 
References
  • Alvarado-Diaz, J. & Campbell, J.A. 2004. A new montane rattlesnake (Viperidae) from Michoacán, Mexico. Herpetologica 60 (2): 281-286 - get paper here
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  • Bryson Jr, Robert W.; Robert W. Murphy,Matthew R. Graham, Amy Lathrop and David Lazcano 2011. Ephemeral Pleistocene woodlands connect the dots for highland rattlesnakes of the Crotalus intermedius group. Journal of Biogeography 38: - get paper here
  • Bryson, R.W. 2007. Fotopirsch auf Gebirgsklapperschlangen. Reptilia (Münster) 12 (66): 32-37 - get paper here
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  • Casas-Andreu, G., F.R. Méndez-De la Cruz and X. Aguilar-Miguel. 2004. Anfibios y Reptiles; pp. 375–390, in A.J.M. García-Mendoza, J. Ordoñez and M. Briones-Salas (ed.). Biodiversidad de Oaxaca. Instituto de Biología, UNAM-Fondo Oaxaqueño para la Conservación de la Naturaleza-World Wildlife Fund, México, D. F.
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  • Fernández-Badillo, Leonardo; Norma Leticia Manríquez-Morán; Jesús Martín Castillo-Cerón & Irene Goyenechea 2016. Análisis herpetofaunístico de la zona árida del estado de Hidalgo. Revista Mexicana de Biodiversidad 87: 156–170 - get paper here
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  • 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
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  • Klauber, Laurence M. 1952. Taxonomic studies on rattlesnakes of Mainland Mexico. Bulletins of the Zoological Society of San Diego (26): 1-143
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  • Martín-Regalado, N.; M. C. Lavariega, R. M. Gómez–Ugalde & C. Rodríguez–Pérez 2016. Anfibios y reptiles de la sierra de Cuatro Venados, Oaxaca, México. Arxius de Miscel·lània Zoològica, 14 (2016): 217–232 - 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
  • McCranie J R 1991. Crotalus intermedius Troschel. Mexican small-headed rattlesnake. Catalogue of American Amphibians and Reptiles ( 519: 1-4 - get paper here
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  • Müller, Johann Wilhelm 1865. Reisen in den Vereinigten Staaten, Canada und Mexiko. III. Beiträge zur Geschichte, Statistik und Zoologie von Mexiko. Dritte Abtheilung. Die Wirbeltiere Mexikos. III. Amphibia [Amphibia by Hugo Troschel, pp. 595-620]. Leipzig, Brockhaus. xiv + 643 pp. - get paper here
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  • Palacios-Aguilar, Ricardo & OSCAR FLORES-VILLELA 2018. An updated checklist of the herpetofauna from Guerrero, Mexico. Zootaxa 4422 (1): 1-24 - get paper here
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