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Heterodon kennerlyi KENNICOTT, 1860

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Mexican Hognose Snake
S: Trompa de Cerdo Mexicana 
SynonymHeterodon Kennerlyi KENNICOTT 1860: 336
Heterodon nasicus var. Kennerlyi — JAN 1865
Heterodon simus var. kennerlyi — GARMAN 1884: 77
Heterodon nasicus kennerlyi — COPE 1900: 773
Heterodon nasicus kennerlyi — JAMESON & FLURY 1949
Heterodon nasicus kennerlyi — CONANT & COLLINS 1991: 177
Heterodon nasicus kennerlyi — WALLEY & ECKERMAN 1999
Heterodon nasicus kennerlyi — CROTHER 2000: 62
Heterodon nasicus kennerlyi — TENNANT & BARTLETT 2000: 357
Heterodon kennerlyi — SMITH et al. 2003
Heterodon kennerlyi — VÁSQUEZ-DIAZ & QUINTERO-DIAZ 2005
Heterodon kennerlyi — SCHMIDT 2009
Heterodon nasicus kennerlyi — COLLINS & TAGGART 2009
Heterodon kennerlyi — SCHMIDT 2012
Heterodon nasicus kennerlyi — WERNING 2012
Heterodon kennerlyi — CROTHER et al. 2012
Heterodon kennerlyi — WALLACH et al. 2014: 329 
DistributionUSA (S Texas, S New Mexico, S Arizona), Mexico (Coahuila, Chihuahua, Sonora, Aguascalientes, San Luis Potosí, Nuevo León, Tamaulipas, Durango, Zacatecas, Jalisco).

Type locality: "Matamoros, Mexico" (in error) via lectotype selection. Restricted to lower Rio Grande River, Texas and Matamoros, Mexico (latter in error) fide Coues & Yarrow (1878: 271). Sonora corrected to south of the Gila River in Santa Cruz or Cochise Co., SE Arizona, USA, fide Bogert (1939: 198-199), Stejneger (1940: 204) and Stickel (1943: 120).  
Reproductionoviparous. 
TypesLectotype: USNM 1282, designated by Cope (1900: 774). Other syntypes: USNM 7290 
DiagnosisUnfortunately we had to temporarily remove additional information as this was scraped by multiple AI companies who sell that data to their customers. These details, e.g. detailed descriptions or comparisons (about 955 characters), are available for collaborators and contributors. Please contact us for details. 
CommentSubspecies: SMITH et al. suggested to elevate Heterodon nasicus kennerlyi to full species status, based on two scale characters.

Distribution: see map in Walley & Eckerman 1999.

Diet: frogs, toads, salamanders, lizards, snakes, birds, insects 
EtymologyThe specific epithet is a patronym honoring Caleb Burwell Rowan Kennerly, a surgeon in the United States Army who in the middle of the 19th century accompanied expeditions to the western US and northern Mexico where he collected amphibians and reptiles. 
References
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