Bothrocophias myersi

Bothrocophias myersi
Conservation status
	; Near Threatened (IUCN 3.1)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Squamata
Suborder:	Serpentes
Family:	Viperidae
Genus:	Bothrocophias
Species:	B. myersi
Binomial name
	Bothrocophias myersi; Gutberlet & Campbell, 2001

Last updated December 14, 2025

Bothrocophias myersi, commonly known as the cheeked snake, the Chocoan toadheaded pitviper, the Chocoan toad-headed viper, and the equis red snake, is a species of venomous pit viper in the subfamily Crotalinae of the family Viperidae. The species is endemic to Colombia.^[2]

Geographic distribution

Bothrocophias myersi is present in the Pacific departments of Cauca and Valle del Cauca in Colombia. It occurs at elevations of 75–200 m (246–656 ft).^[2]

Habitat

The preferred natural habitat of Bothrocophias myersi is forest.^[1]

Reproduction

Bothrocophias myersi is ovoviviparous.^[2]

Etymology

The specific name, myersi, is in honor of American herpetologist Charles William Myers.^[3]

References

1 2 Caicedo, J.R.; Bolívar, W.; Velasco, J. (2019). "Bothrocophias myersi (Chocoan Toadheaded [sic] Pitviper)". IUCN Red List of Threatened Species . 2019 e.T178511A44955043. doi: 10.2305/IUCN.UK.2019-2.RLTS.T178511A44955043.en . Retrieved 12 November 2021.
1 2 3 Species Bothrocophias myersi at The Reptile Database www.reptile-database.org.
↑ Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Johns Hopkins University Press. Baltimore. xiii + 296 pp. ISBN 978-1-4214-0135-5. (Chocoan toad-headed viper Bothrocophias myersi, p. 186).

Carrasco, P.A.; Mattoni, C.I.; Leynaud, G.C.; Scrocchi, G.J. (2012). "Morphology, phylogeny and taxonomy of South American bothropoid pitvipers (Serpentes, Viperidae)". Zoologica Scripta. 41: 109–124.
Castro-Herrera, Fernando; Ayerbe, Santiago; Calderon, John Jairo; Cepeda, Belisario (2005). "Nuevo registro para Colombia de Bothrocophias campbelli y notas sobre B. colombianus y B. myersi (Serpentes: Viperidae)". Novedades Colombianas. 8 (1): 57–64. (in Spanish).
Castro-Herrera, F.; Vargas-Salinas, F. (2008). "Anfibios y reptiles en el departamento del Valle del Cauca, Colombia". Biota Colombiana. 9 (2): 251–277. (in Spanish).
Gutberlet, R.L.; Campbell, J.A. (2001). "Generic Recognition for a Neglected Lineage of South American Pitvipers (Squamata: Viperidae: Crotalinae), with the Description of a New Species from the Colombian Chocó". American Museum Novitates (3316): 1–15. (Bothrocophias myersi, new species).

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[iucn_status_12_November_2021-1] 1 2 Caicedo, J.R.; Bolívar, W.; Velasco, J. (2019). "Bothrocophias myersi (Chocoan Toadheaded [sic] Pitviper)". IUCN Red List of Threatened Species . 2019 e.T178511A44955043. doi: 10.2305/IUCN.UK.2019-2.RLTS.T178511A44955043.en . Retrieved 12 November 2021.

[RDB-2] 1 2 3 Species Bothrocophias myersi at The Reptile Database www.reptile-database.org.

[3] Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Johns Hopkins University Press. Baltimore. xiii + 296 pp. ISBN 978-1-4214-0135-5. (Chocoan toad-headed viper Bothrocophias myersi, p. 186).

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