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Atractus thalesdelemai PASSOS, FERNANDES & ZANELLA, 2005

IUCN Red List - Atractus thalesdelemai - Endangered, EN
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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesPortuguese: Cobra-da-Terra-do-Sul, Cobrinha-da-Terra 
SynonymAtractus thalesdelemai PASSOS, FERNANDES & ZANELLA 2005
Atractus thalesdelemai — PASSOS et al. 2007
Atractus kangueryensis CACCIALI, VILLALBA & YANOSKY 2007
Atractus thalesdelemai — WALLACH et al. 2014: 81
Atractus thalesdelemai — NOGUEIRA et al. 2019 
DistributionS Brazil (Rio Grande do Sul)

Type locality: Fazenda da Brigadda Militar, Municipality of Passo Fundo, Rio Grande do Sul, Brazil (28°14’30”S, 52°21’27”W).

kangueryensis: Paraguay (Itapúa); Type locality: Kangüery, privately-owned reserve by Guyra Paraguay within the area delimited for the implantation of the San Rafael National Park, district of Alto Vera, Itapúa Department (26°30’42”S, 55°47’20”W).  
Reproductionoviparous 
TypesHolotype: MNRJ 10052
Holotype: MNHNP 11117, female; paratypes: MNHNP; Collected on 23 March 2006 by Ramón Villalba [kangueryensis] 
DiagnosisUnfortunately we had to temporarily remove additional information as this was scraped by multiple AI companies who sell that data to their customers. These details, e.g. detailed descriptions or comparisons (about 2902 characters), are available for collaborators and contributors. Please contact us for details. 
CommentSynonymy: Atractus kangueyrensis was synonymized with Atractus thalesdelemai by PASSOS et al. 2010.

Habitat (kangueryensis): natural grassland with several patches of Atlantic forest surrounding it. 
EtymologyNamed after Thales de Lema, Brazilian herpetologist.

Etymology (kangueryensis): The specific epithet “kangueryensis” is a proper noun from the type-locality. It comes from the Guarani language and means “water coming from the bones” (Kangue: bone; ry: liquid, water), in reference to a place where the tribe MbyaGuarani buried their members. It is also the name of a stream that flows 2000 m far from the location where the holotype was collected. (now a synonym) 
References
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Cacciali, P.; Villalba, R. & Yanosky, A.A. 2007. A NEW SPECIES OF ATRACTUS (SERPENTES:COLUBRIDAE: DIPSADINAE) FROM THE ATLANTIC FOREST OF ALTO PARANÁ, PARAGUAY. South American J. Herp. 2 (2): 83-88 - get paper here
  • Cacciali, Pier; Norman J. Scott, Aida Luz Aquino Ortíz, Lee A. Fitzgerald, and Paul Smith 2016. The Reptiles of Paraguay: Literature, Distribution, and an Annotated Taxonomic Checklist. SPECIAL PUBLICATION OF THE MUSEUM OF SOUTHWESTERN BIOLOGY, NUMBER 11: 1–373 - get paper here
  • Gonzalez R. C. et al. 2020. Lista dos Nomes Populares dos Répteis no Brasil – Primeira Versão. Herpetologia Brasileira 9 (2): 121 – 214 - get paper here
  • Nogueira, Cristiano C.; Antonio J.S. Argôlo, Vanesa Arzamendia, Josué A. Azevedo, Fausto E. Barbo, Renato S. Bérnils, Bruna E. Bolochio, Marcio Borges-Martins, Marcela Brasil-Godinho, Henrique Braz, Marcus A. Buononato, Diego F. Cisneros-Heredia, 2019. Atlas of Brazilian snakes: verified point-locality maps to mitigate the Wallacean shortfall in a megadiverse snake fauna. South American J. Herp. 14 (Special Issue 1):1-274 - get paper here
  • 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
  • Passos, P., R. Fernandes and N. Zanella 2005. A new species of Atractus (Serpentes: Colubridae) from Southern Brazil. Herpetologica 61 (2): 209-218 - get paper here
  • PASSOS, P., RODRIGUES, R., PINNA, P. H., WOITOVICZ-CARDOSO, M. A. N. O. E. L. A., FERNANDES, R., & CARAMASCHI, U. 2025. Filling gaps between museum and society: An illustrated catalog of the primary type specimens of Squamata housed in the Museu Nacional, Rio de Janeiro, Brazil. Zootaxa 5698(1): 1-91 - get paper here
  • Passos, P.; Fernandes, R.; Bernils, R.S. & Moura-Leite, J.C. de 2010. Taxonomic revision of the Brazilian Atlantic Forest Atractus (Reptilia: Serpentes: Dipsadidae). Zootaxa 2364: 1–63 - 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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