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Atractus gaigeae SAVAGE, 1955

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) 
Common NamesGaige's Ground Snake 
SynonymAtractus gaigeae SAVAGE 1955
Atractus gaigeae — PETERS & OREJAS-MIRANDA 1970: 29
Atractus gaigeae — PASSOS et al. 2007
Atractus gaigeae — WALLACH et al. 2014: 73 
DistributionEcuador (Amazonas), Peru (May and Mueses-Cisneros 2011)

Type locality: Santiago-Zaruma or Morona-Chinchipe Provinces, Ecuador. Map legend:
TDWG region - Region according to the TDWG standard, not a precise distribution map.

NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
TypesHolotype: UMMZ 82887 
CommentHas been synonymized with A. collaris by DIXON & SOINI 1986 (fide A. Hagedorn).

DIAGNOSIS: A form most closely resembling A. collaris of Ecuador and Perú and, to a lesser extent, ecuadorensis, occidentalis, and dunni. Distinct from these forms and all other Ecuadorian Atractus in: (1) 17 scale rows; (2) loreal long; (3) teeth on maxillary five or six; (4) ventrals in males, 187-198 (191); in females, 207-213 (210); and (5) pattern of seven dark stripes and two rows of regularly arranged dark spots [from SAVAGE 1960]. 
EtymologyNamed after Helen Beulah Thompson Gaige (1890-1976), American herpetologist at the University of Michigan. 
  • Dixon, J. R.;Soini, P. 1977. The reptiles of the upper Amazon basin, Iquitos region, Peru, Part 2: crocodilians, turtles and snakes. Milwaukee Public Museum Contributions in Biology and Geology 4: 59-154 [1986?]
  • Passos, P., R. Fernandes and Borges-Nojosa, D.M. 2007. A New Species of Atractus (Serpentes: Dipsadinae) from a Relictual Forest in Northeastern Brazil. Copeia 2007 (4): 788–797 - get paper here
  • Prudente, Ana L.C and Paulo Passos 2008. New Species of Atractus Wagler, 1828 (Serpentes: Dipsadinae) from Guyana Plateau in Northern Brazil. Journal of Herpetology 42 (4): 723 - get paper here
  • Savage, Jay M. 1955. Descriptions of new colubrid snakes, genus Atractus, from Ecuador. Proc. Biol. Soc. Washington 68: 11-20 - get paper here
  • Savage,J.M. 1960. A revision of the Ecuadorian snakes of the colubrid genus Atractus. Misc. Publ. Zool. Univ. Michigan 112: 1-86 - get paper here
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. Taylor and Francis, CRC Press, 1237 pp.
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