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Chironius maculoventris DIXON, WIEST & CEI, 1993

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Higher TaxaColubridae, Colubrinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesCentral Sipo
sexcarinatus: Wagler's Puffing Snake
Portuguese: Cobra-Cipó 
SynonymChironius quadricarinatus maculoventris WIEST 1978
Chironius quadricarinatus maculoventris DIXON, WIEST & CEI 1993
Chironius bicarinatus — PETERS & OREJAS-MIRANDA 1970 (part.)
Chironius quadricarinatus maculoventris DIXON, WIEST & CEI 1993: 181
Chironius maculoventris — HOLLIS 2006
Chironius quadricarinatus maculoventris — SCROCCHI et al. 2006: 78
Chironius maculoventris — WALLACH et al. 2014: 161
Chironius quadricarinatus maculoventris — CANO et al. 2015
Chironius maculoventris — TORRES-CARVAJAL et al. 2018
Chironius maculoventris — NOGUEIRA et al. 2019 
DistributionNE Argentina (Corrientes, Chaco, Formosa, Santa Fe), W Paraguay (Chaco forests and associated vegetation), Bolivia (Tarija; elevation 440 m, EMBERT 2002), Brazil (Rio Grande do Sul)

Type locality: Corrientes province, Argentina.  
Reproductionoviparous. 
TypesHolotype: ZMUC (was UZMK) 60816 
DiagnosisDiagnosis: brown speckling on yellow·olive ventrals and a bold or darkened postocular stripe versus immaculale yellow ventrals and no noticeable postocular stripe in the nominate form [DIXON, WIEST & CEI 1993: 182]

Diagnosis (quadricarinatus): This subspecies of C. quadricarinatus has uniform yellow ventrals and subcaudals and no bold postocular slripe, versus brown speckling on yellow-olive ventrals and a distinct dark postocular stripe in C q. maculoventris [DIXON, WIEST & CEI 1993: 185] 
CommentSynonymy that of PETERS & OREJAS-MIRANDA 1970 and CEI 1993. GIRAUDO & SCROCCHI 2002, following DIXON et al. 1993, state that old material identified as Herpetodryas sexcarinatus is actually Chironius quadricarinatus maculoventris and thus this species does not occur in Argentina.
Wiest published the description of C. dixoni in his PhD thesis, which was later published again in slighly modified form by Dixon et al. 1993. Entiauspe-Neto & Loebmann 2019 argued that Wiest 1978 constitutes a proper publication and thus has priority over Dixon et al. 1993.

Habitat: partly arboreal (Harrington et al. 2018). 
References
  • Cacciali, Pier; Hugo Cabral 2015. The genus Chironius (Serpentes, Colubridae) in Paraguay: composition, distribution, and morphology. Basic and Applied Herpetology 29: - 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
  • Cano, Paula Daniela; Héctor Alejandro Ball, Matías Federico Carpinetto, Germán Darío Peña 2015. Reptile checklist of Río Pilcomayo National Park, Formosa, Argentina. Check List 11 (3): 1658 - get paper here
  • Dixon J R; Wiest J A Jr; Cei J M 1993. Revision of the Neotropical snake genus Chironius Fitzinger (Serpentes, Colubridae). MUSEO REGIONALE DI SCIENZE NATURALI MONOGRAFIE (TURIN) 13 :1-280
  • Embert, Dirk 2002. Geographic distribution. Chironius quadricarinatus maculoventris (Cobra Cipo, Sacaiboia). Herpetological Review 33 (3): 226-227 - get paper here
  • Entiauspe-Neto OM, Loebmann D 2019. Taxonomic status of Chironius laurenti Dixon, Wiest & Cei, 1993 and of the long- forgotten Chironius dixoni Wiest, 1978 (Squamata, Serpentes). Bionomina 16: 83–87 - 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
  • Harrington, Sean M; Jordyn M de Haan, Lindsey Shapiro, Sara Ruane 2018. Habits and characteristics of arboreal snakes worldwide: arboreality constrains body size but does not affect lineage diversification. Biological Journal of the Linnean Society 125 (1): 61–71 - get paper here
  • Hollis, J.L. 2006. Phylogenetics of the genus Chironius Fitzinger 1826 (Serpenes, Colubridae) based on morphology. Herpetologica 62 (4): 435-452 - get paper here
  • Marra Santos, Fidélis Júnio; Márcio Repenning, Christian Beier, Glaucia Maria Funk Pontes 2015. First record of Chironius maculoventris Dixon, Wiest & Cei, 1993 (Squamata: Serpentes: Colubridae) in Brazil PDF. Herpetology Notes 8: 169-171 - get paper here
  • MOURA, MARIO R.; HENRIQUE C. COSTA, ARTHUR D. ABEGG, ESMERALDA ALAMINOS, TEDDY ANGARITA‐SIERRA, WEVERTON S. AZEVEDO, HUGO CABRAL, PRISCILA CARVALHO, SONIA CECHIN, NATHALIE CITELI, ÂNGELO C.M. DOURADO, ANDRÉ F.V. DUARTE, FREDERICO G.R. FRANÇA, ELIZA M 2022. Unwrapping broken tails: Biological and environmental correlates of predation pressure in limbless reptiles. Journal of Animal Ecology 2022: 1–14. - 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
  • Nuñez Montellano, Maria Gabriela 2020. Chironius maculoventris (Serpentes, Colubridae) and Erythrolamprus poecilogyrus caesius (Serpentes, Dipsadidae) killed by Taraba major (Aves: Thamnophilidae,) in Chaco dry forest of Argentina. Herpetology Notes 13: 851-853 - get paper here
  • Pesci, Giuliano; Sanchez, José Manuel; Muniz Leão, Suelem; Pelegrin, Nicolás 2018. Reptiles y anfibios de una localidad del Chaco Húmedo en Formosa, Argentina. Cuad. herpetol. 32 (1): 47-54 - get paper here
  • Peters, James A.; Donoso-Barros, Roberto & Orejas-Miranda, Braulio 1970. Catalogue of the Neotropical Squamata: Part I Snakes. Bull. US Natl. Mus. 297: 347 pp. - get paper here
  • Scrocchi, G.J.; Moreta, J.C. & Kretzschmar, S. 2006. Serpientes del Noroeste Argento [Jujuy, Salta, Tucumán, Catamarca, La Rioja, Santiago del Estero]. Fundación Miguel Lillo, Tucumán, 178 pp.
  • Torres-Carvajal, O., Echevarría, L.Y., Lobos, S.E., Venegas, P.J., Kok, P.J.R. 2018. Phylogeny, diversity and biogeography of Neotropical sipo snakes (Serpentes: Colubrinae: Chironius). Molecular Phylogenetics and Evolution 130: 315-329 - 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.
  • Wiest, J. A., Jr. 1978. Revision of the Neotropical snake genus Chironius Fitzinger (Serpentes, Colubridae). PhD. dissertation, Texas A&M University: i–xv + 1–370
 
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