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Rhadinaea macdougalli SMITH & LANGEBARTEL, 1949

IUCN Red List - Rhadinaea macdougalli - Data Deficient, DD
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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: MacDougall's Graceful Brown Snake
S: Hojarasquera de MacDougall 
SynonymRhadinaea macdougalli SMITH & LANGEBARTEL 1949: 413 (1950)
Rhadinaea macdougalli — LINER 1994
Rhadinaea macdougalli — LINER 2007
Rhadinaea macdougalli — WALLACH et al. 2014: 640 
DistributionSE Mexico (Oaxaca, Veracruz)

Type locality: Mexico: near Buena Vista, at crest of Sierra Madra, directly N of Rio Grande, Oaxaca  
Reproductionoviparous 
TypesHolotype: INHS (= UIMNH) 3775; T. MacDougall; March 7, 1949. 
DiagnosisDiagnosis: Amember of the genus Rhadinaea, with 17 scale rows, ventrals about 119, caudals about 75, in males; no supraanal keels; maxillary teeth 16 + 2, with a short but well-defined di­ astema preceding the two rear teeth; hemipenis capitate, sulcus divided, with about 22 large spines in a belt around the middle, and numerous fine spines to base. Sides below upper part of fourth scale row darker than back, faintly bor­ dered above by a light linfe; no other stripe on body; head with a light line through the supra­ labials and another from upper rear margin of orbit to upper edge of last supralabial; belly immaculate except ends of ventrals, which are darker than adjacent dorsal scales (Smith & Langebartel 1949: 413). 
CommentGroup: Rhadinaea decorata group 
EtymologyNamed for Thomas MacDougall, collector, who for 10 years has assisted the senior author to become acquainted with the Tehuantepec area. 
References
  • 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
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • 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.
  • Heimes, P. 2016. Snakes of Mexico. Chimaira, Frankfurt, 572 pp
  • Liner, Ernest A. 2007. A CHECKLIST OF THE AMPHIBIANS AND REPTILES OF MEXICO. Louisiana State University Occasional Papers of the Museum of Natural Science 80: 1-60 - 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
  • Myers, C.W. 1974. The systematics of Rhadinaea (Colubridae), a genus of New World snakes. Bull. Amer. Mus. nat. Hist. 153 (1): 1-262 - get paper here
  • Pérez-Higareda, Gonzalo, Marco A. López-Luna, David Chiszar and Hobart M. Smith 2002. Additions to and Notes on the Herpetofauna of Veracruz, Mexico. Bull. Chicago Herp. Soc. 37(4):67-68 - get paper here
  • Smith, H. M., & LANGEBARTEL, D. A. 1949. Notes on a collection of reptiles and amphibians from the Isthmus of Tehuantepec. J. Washington Acad. Sci. 39: 409-416.
  • Torres-Hernández, LA, Ramírez-Bautista A, Cruz-Elizalde R, Hernández-Salinas U, Berriozabal-Islas C, DeSantis DL, Johnson JD, Rocha A, García-Padilla E, Mata-Silva V, Fucsko LA, and Wilson LD. 2021. The herpetofauna of Veracruz, Mexico: composition, distribution, and conservation status. Amphibian & Reptile Conservation 15(2) [General Section]: 72–155 - get paper here
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp.
 
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