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Chironius laurenti DIXON, WIEST & CEI, 1993

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Higher TaxaColubridae, Colubrinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common NamesPortuguese: Cobra-Cipó 
SynonymChironius dixoni WIEST 1978
Chironius laurenti DIXON, WIEST & CEI 1993: 141
Chironius laurenti — HOLLIS 2006
Chironius laurenti — WALLACH et al. 2014: 161
Chironius laurenti — NOGUEIRA et al. 2019
Chironius dixoni — BERNAL & DUBOIS 2023 
DistributionBolivia (Beni, Cochabamba, and Santa Cruz),
Brazil (Mato Grosso, Acre)

Type locality: Bolivia, Department of Beni, Rio Mamore  
TypesHolotype: AMNH 101815. Paratypes: AMNH 6778, 101809-814, 101816-819, 101821, 104558; BMNH 1904.10.29.52; CM 2880, 2946-47; FNMH 35580,161509, MZUSP 6407, UMMZ
60744-45,60749,63922 (2 Specimen),64015, USNM 159787. 
DiagnosisDiagnosis: this is the only Chironius species with a combination of 12 scale rows at midbody, divided anal plate, 163-181 ventrals, immaculate yellowish subcaudals, dorsum brownish ,32-36 maxillary teeth, 2-10 scale rows in males and 2-6 scale rows in females keeled and a mottled ventrolateral pattern on posterior of body and tail [shortened after DIXON et al. 1993: 142]. 
CommentDistribution: Map in DIXON et al. 1993: 143. See map in Nogueira et al. 2019.

Synonymy: 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. The holotypes of C. dixoni and C. laurenti are identical. 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). 
EtymologyNamed after Dr. Raymond Ferdinand Louis-Philippe Laurent (1917-2005), a Belgian herpetologist who worked for much of his life in Argentina and started the Herpetology Department, Fondación Miguel Lillo, Tucuman, Argentina (1975).  
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Bernal, Rodrigo & Alain Dubois 2023. Chironius scurrula, the correct nomen for Chironius scurrulus (Squamata, Serpentes, Colubridae), with a list of the correct spellings of specific epithets currently in use in this genus. Bionomina, 34: 035–044 - 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
  • 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
  • Miranda, Daniele Bazzo; Nathocley Mendes Venâncio, Saymon de Albuquerque 2014. Rapid survey of the herpetofauna in an area of forest management in eastern Acre, Brazil. Check List 10 (4): 893-899 - 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
  • Roberto, I. J. and Souza, A. R. 2020. Review of prey items recorded for snakes of the genus Chironius (Squamata, Colubridae), including the first record of Osteocephalus as prey. Herpetology Notes 13: 1-5. - get paper here
  • Silva-Alves, V. D., Mudrek, J. R., Silva-Diogo, O., Canale, G. R., Santos-Filho, M., Muniz, C. C., & Silva, D. J. 2022. A first approximation for the Herpetofauna species composition of the Taiamã Ecological Station, Pantanal of Mato Grosso, Brazil. Brazilian Journal of Biology, 82 - get paper here
  • 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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