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Boa occidentalis PHILIPPI, 1873

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Higher TaxaBoidae (Boinae), Henophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Argentine Boa Constrictor 
SynonymBoa occidentalis PHILIPPI 1873
Boa occidentalis — BOULENGER 1893: 118
Euncetes murinus BERG 1893 (nec LINNAEUS)
Constrictor constrictor occidentalis IHERING 1911: 321
Constrictor occidentalis — SERIÉ 1921
Boa constrictor occidentalis — FORCART 1951: 199
Boa constrictor occidentalis — ABALOS et al. 1964
Boa constrictor occidentalis — FREIBERG 1982
Boa constrictor occidentalis — CEI 1993
Boa constrictor occidentalis — SCROCCHI et al. 2006: 69
Boa constrictor occidentalis — BINDER & LAMP 2007
Boa constrictor occidentalis — HYNKOVA et al. 2009
Boa constrictor occidentalis — WINCHELL 2010
Boa constrictor occidentalis — SMITH et al. 2017
Boa constrictor occidentalis — REYNOLDS & HENDERSON 2018: 6
Boa constrictor occidentalis — MURPHY & CRUTCHFIELD 2019
Boa constrictor occidentalis — GONZALEZ et al. 2024: 18
Boa occidentalis — GONZALEZ et al. 2024: 19 
DistributionParaguay, Argentina (Mendoza, San Luis, Cordoba, La Pampa, Santiago del Estero), SE Bolivia

Type locality: Mendoza and San Juan, Argentina.  
Reproductionovovivparous; Booth et al. (2010) provide evidence for parthenogenesis in B. constrictor. 
TypesHolotype: unlocated fide McDiarmid et al., 1999, Reynolds & Henderson 2018) [occidentalis] 
DiagnosisAdditional details, e.g. a detailed description or comparisons (919 characters), are available for collaborators and contributors. Please contact us for details. 
CommentSubspecies: If B. atlantica is treated as species, B. occidentalis needs to be treated as species too. However, both could be treated as subspecies of B. constrictor too. See phylogeny in Gonzalez et al. 2024. 
EtymologyThe specific name occidentalis (Latin) refers to the western distribution of this species. 
References
  • Abalos, J.W., Baez, E.C., & Nader, R. 1964. Serpientes de Santiago del Estero. Acta Zoologica Lilloana 20: 211-283
  • Binder, S. & Lamp, A. 2007. Boa constrictor. Die Abgottschlange. Natur und Tier Verlag (Münster), 207 pp. - get paper here
  • Boulenger, G.A. 1893. Catalogue of the snakes in the British Museum (Nat. Hist.) I. London (Taylor & Francis), 448 pp. - get paper here
  • Forcart, L. 1951. Nomenclature Remarks on Some Generic Names of the Snake Family Boidae. Herpetologica 7: 197-199 - get paper here
  • Freiberg, M.A. 1982. Snakes of South America. T.F.H. Publications, Neptune City, NJ, 189 pp. - get paper here
  • Gonzalez RC, Bezerra de Lima LC, Passos P, Silva MJJ 2024. The good, the bad and the boa: An unexpected new species of a true boa revealed by morphological and molecular evidence. PLoS ONE 19(4): e0298159 - get paper here
  • Hynková, Ivana; Zuzana Starostová and Daniel Frynta. 2009. Mitochondrial DNA Variation Reveals Recent Evolutionary History of Main Boa constrictor Clades. Zoological Science 26 (9): 587–59 - get paper here
  • Ihering, R. von 1911. As cobras do Brazil. Primeira parte. Rev. Mus. Paulista 8 (1910): 273-379 - get paper here
  • Philippi, R.A. 1873. Ueber die Boa der westlichen Provinzen der Argentinischen Republik. Z. ges. Naturwiss., Halle, 41: 127-130, 1 plate - get paper here
  • Reynolds, R. Graham and Robert W. Henderson 2018. Boas of the World (Superfamily Booidae): A Checklist With Systematic, Taxonomic, and Conservation Assessments. Bulletin of the Museum of Comparative Zoology Sep 2018, Vol. 162, No. 1: 1-58. - 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.
  • Serie, P. 1921. An. Soc. Cient. Argentina, Buenos Aires, 92: 148.
  • Smith, Paul David; Karina Atkinson 2017. Observations of two predation events involving herps and birds. Herpetology Notes 10: 635-637 - get paper here
  • Winchell, S. 2010. Die Reptilien Argentiniens. Reptilia (Münster) 15 (83): 20-27 - get paper here
 
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