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Heterodon kennerlyi
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Squamata
Suborder:	Serpentes
Family:	Colubridae
Genus:	Heterodon
Species:	H. kennerlyi
Binomial name
Heterodon kennerlyi Kennicott, 1860
Synonyms
Heterodon kennerlyi Kennicott, 1860 Heterodon nasicus var. kennerlyi — Jan, 1865 Heterodon simus var. kennerlyi — Garman, 1884 Heterodon nasicus kennerlyi — Cope, 1900 Heterodon kennerlyi — H.M. Smith et al., 2003

Heterodon kennerlyi, also known commonly as the Mexican hognose snake, Kennerly's hog-nosed snake, and la trompa de cerdo mexicana in Mexican Spanish, is a species of snake in the subfamily Dipsadinae of the family Colubridae. The species is native to the southwestern United States and adjacent northeastern Mexico

Etymology

The specific name, kennerlyi, is in honor of Caleb Burwell Rowan Kennerly, who was an American physician and naturalist.

Description

H. kennerlyi has 2–6 small azygous scales behind the rostral. Adults usually have a snout-to-vent length (SVL) of 15–25 in (38–64 cm). The maximum recorded SVL is 29.9 in (76 cm).

Geographic range

In the United States H. kennerlyi is found in southern Arizona, southern New Mexico, and southwestern Texas. In Mexico it is found in the Mexican states of Aguascalientes, Chihuahua, Coahuila, Durango, Jalisco, Nuevo León, San Luis Potosí, Sonora, Tamaulipas, and Zacatecas.

Reproduction

H. kennerlyi is oviparous.

References

1. ^ Species Heterodon kennerlyi at The Reptile Database www.reptile-database.org.
2. Beolens B, Watkins M, Grayson M (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN 978-1-4214-0135-5. (Heterodon nasicus kennerlyi, p. 140).
3. Powell R, Conant R, Collins JT (2016). Peterson Field Guide to Reptiles and Amphibians of Eastern and Central North America, Fourth Edition. Boston and New York: Houghton Mifflin Harcourt. xiv + 494 pp., 47 color plates, 207 figures. ISBN 978-0-544-12997-9. (Heterodon kennerlyi, p. 407 + Figure 189 on p. 408).

Further reading

• Heimes P (2016). Snakes of Mexico: Herpetofauna Mexicana Vol. I. Frankfurt am Main, Germany: Edition Chimaira. 572 pp. ISBN 978-3899731002.
• Kennicott R (1860). "Descriptions of New Species of North American Serpents in the Museum of the Smithsonian Institution, Washington". Proceedings of the Academy of Natural Sciences of Philadelphia 12: 328–338. (Heterodon kennerlyi, new species, pp. 336–337).
• Smith, Hobart M.; Chiszar, David; Eckerman, Curtis M.; Walley, Harlan D. (2003). "The taxonomic status of the Mexican hognose snake Heterodon kennerlyi Kennicott 1860". Journal of Kansas Herpetology (5): 17–2O. (Heterodon kennerlyi, restored to species status).

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