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Drymobius chloroticus (COPE, 1886)

IUCN Red List - Drymobius chloroticus - Least Concern, LC

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Higher TaxaColubridae, Colubrinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common NamesE: Green Highland Racer
S: Corredora Verde 
SynonymDendrophidion chloroticum COPE 1886: 278
Drymobius chloroticus — COPE 1887: 69
Drymobius chloroticus — BOULENGER 1894: 16
Drymobius chloroticus — PETERS & OREJAS-MIRANDA 1970: 98
Drymobius chloroticus — VILLA et al. 1988
Drymobius chloroticus — LINER 1994
Drymobius chloroticus — LINER 2007
Drymobius chloroticus — WALLACH et al. 2014: 246
Drymobius chloroticus — SUNYER & MARTÍNEZ-FONSECA 2023 
DistributionSE Mexico (Verarcuz, Oaxaca, Chiapas, San Luis Potosi, Hidalgo, Guerrero, Veracruz), Belize ?, Honduras, Guatemala, El Salvador, Nicaragua; elevation (Honduras): 780-1900 m

Type locality: Guatemala. Restricted to Cobán, Guatemala.  
TypesHolotype: USNM 6755, a 1048 mm female (H. Hague). 
CommentRelative abundance in Honduras: rare

It seems likely that the two nominal taxa, D. chloroticus and D. melanotropis, will ultimately prove to be geographic variants of a single species, although Wilson (1970,1975b) reported virtual sympatry for the two: D. chloroticus at a locality 19 km north of Matagalpa, Nicaragua. The presumed differences between chloroticus and melanotropis are trivial (chloroticus: no black keels on the dorsal scales, subcaudals 1.07 to 125; melanotropis: black keels on the three uppermost dorsal scales, subcaudals 91 to 96). The degree to which the keels are darkened in Costa Rican examples is now known to be variable, so this feature does
not reliably separate the nominal species [from SAVAGE 2002].

Distribution: Taylor's records (1951, 1954) for the related species Drymobius chloroticus are based on examples of Dendrophidion paucicarinaturus (Wilson 1970). Not in Costa Rica fide SAVAGE 2002.

Similar species: D. margaritiferus. 
EtymologyThe specific epithet is derived from the Greek word chloros, meaning "green," and the suffix -ticus, meaning "a condition of," in reference to the snake's overall green coloration. 
  • Aguilar-López JL, Luría-Manzano R, Pineda E, Canseco-Márquez L 2021. Selva Zoque, Mexico: an important Mesoamerican tropical region for reptile species diversity and conservation. ZooKeys 1054: 127-153 - get paper here
  • Badillo-Saldaña, L.M.; C. Berriozabal-Islas; A. Ramírez-Bautista 2014. New record of the snake Drymobius chloroticus (Cope, 1886) (Squamata: Colubridae) from Hidalgo, Mexico. Check List 10 (1): 199-201 - get paper here
  • Boulenger, George A. 1894. Catalogue of the snakes in the British Museum (Natural History). Volume II., Containing the Conclusion of the Colubridæ Aglyphæ. British Mus. (Nat. Hist.), London, xi, 382 pp. - get paper here
  • Carbajal-Márquez, R. A., Sigala-Rodriguez, J. J., Ayala-Rodríguez, J. J., Hidalgo-García, J. A., & Moreno-Avendaño, V. A. 2023. The Green Highland Racer, Drymobius chloroticus (Squamata: Colubridae): a new record for the Central Plateau of Chiapas, México. Herpetology Notes, 16, 565-568
  • 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.
  • Cope, E.D. 1886. Thirteenth contribution to the herpetology of tropical America. Proc. Amer. Philos. Soc. 23: 271-287 [1885] - get paper here
  • Cope, E.D. 1887. Catalogue of batrachians and reptiles of Central America and México. Bull. US Natl. Mus. 32: 7-98 - get paper here
  • Guerra Centeno, Dennis; Héctor Fuentes Rousselin & David Morán Villatoro 2012. Serpientes de Guatemala: Guía para didentificación de especies. Universidad de San Carlos de Guatemala, 186 pp.
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  • 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
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  • Pérez-Santos, C. E. 1986. Zoogeografía de los Ophidia en Colombia. Univ. Complutense, Madrid, 2 vols., 971 pp.
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  • Solís, J. M., L. D. Wilson, and J. H. Townsend. 2014. An updated list of the amphibians and reptiles of Honduras, with comments on their nomenclature. Mesoamerican Herpetology 1: 123–144 - get paper here
  • Sunyer, Javier 2014. An updated checklist of the amphibians and reptiles of Nicaragua. Mesoamerican Herpetology 1 (2): 186–202. - get paper here
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  • Wilson, L.D. 1970. A review of the chloroticus group of the colubrid snake genus Drymobius, with notes on a twin-striped form of D. chloroticus (Cope) from southern México. Journal of Herpetology 4 (3-4): 155-163. - get paper here
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