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Atractus typhon PASSOS, MUESES-CISNEROS, LYNCH & FERNANDES, 2009

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common Names 
SynonymAtractus typhon PASSOS, MUESES-CISNEROS, LYNCH & FERNANDES 2009
Atractus typhon — WALLACH et al. 2014: 83 
DistributionColombia (Nariño), Ecuador

Type locality: Reserva Natural Biotopo Selva Húmeda (01º25’N, 78º17’W, ca. 600 m elevation), vereda Berlín, El Diviso, municipality of Barbacoas, department of Nariño, Colombia  
Reproductionoviparous (not imputed, fide Zimin et al. 2022) 
TypesHolotype: ICN-MHN = ICN 10901, adult male, collected by B. Cépeda and J. J. Mueses-Cisneros on 14 July 2006. 
DiagnosisDiagnosis: Atractus typhon is distinguished from all congeners by the following combination of characters: (1) 15/15/15 smooth dorsal; (2) two postoculars; (3) long loreal; (4) temporals 1+2; (5) seven supralabials, third and fourth contacting orbit; (6) seven infralabials, first three contacting chinshields; (7) seven maxillary teeth; (8) three gular scale rows; (9) three preventrals; (10) 156 ventrals in the single male; (11) 58 subcaudals in male; (12) dorsal ground colour beige with broad black bands alternated in the flanks; (13) venter cream with dark brown squared blotches concentrated on lateral portion of ventrals; (14) moderate body size, with males reaching 293 mm SVL; (15) long tail (27.0% SVL); (16) hemipenis moderately bilobed, semicapitate, semicalyculate.
 
CommentHabitat: rainforest 
References
  • Arteaga A, Mebert K, Valencia JH, Cisneros-Heredia DF, Peñafiel N, Reyes-Puig C, Vieira-Fernandes JL, Guayasamin JM 2017. Molecular phylogeny of Atractus (Serpentes, Dipsadidae), with emphasis on Ecuadorian species and the description of three new taxa. ZooKeys 661: 91-123. - get paper here
  • Arteaga, A.; Bustamante, L.; Vieira, J. 2024. Reptiles of Ecuador. Khamai Foundation & Tropical Herping, 1073 pp. - get paper here
  • Passos, P.; Mueses-Cisneros, J.J.; Lynch, J.D. & Fernandes, R. 2009. Pacific lowland snakes of the genus Atractus (Serpentes: Dipsadidae), with description of three new species. Zootaxa 2293: 1–34 - get paper here
  • Torres-Carvajal O, Pazmiño-Otamendi G, Salazar-Valenzuela D. 2019. Reptiles of Ecuador: a resource-rich portal, with a dynamic checklist and photographic guides. Amphibian & Reptile Conservation 13 (1): [General Section]: 209–229 (e178) - 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.
  • Zimin, A., Zimin, S. V., Shine, R., Avila, L., Bauer, A., Böhm, M., Brown, R., Barki, G., de Oliveira Caetano, G. H., Castro Herrera, F., Chapple, D. G., Chirio, L., Colli, G. R., Doan, T. M., Glaw, F., Grismer, L. L., Itescu, Y., Kraus, F., LeBreton 2022. A global analysis of viviparity in squamates highlights its prevalence in cold climates. Global Ecology and Biogeography, 00, 1–16 - get paper here
 
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