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Xenodon semicinctus (DUMÉRIL, BIBRON & DUMÉRIL, 1854)

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Ringed Hognose Snake 
SynonymHeterodon semi-cinctus DUMÉRIL, BIBRON & DUMÉRIL 1854: 774
Heterodon pulcher JAN 1863
Lystrophis semicinctus — BOULENGER 1894
Lystrophis semicinctus weiseri MÜLLER 1928
Lystrophis semicinctus — MERTENS 1956
Lystrophis semicinctus — FREIBERG 1982
Lystrophis semicinctus — MEHRTENS 1987: 190
Lystrophis semicinctus — CEI 1993
Lystrophis semicinctus — GIRAUDO & SCROCCHI 2002
Lystrophis semicinctus — SCROCCHI et al. 2006: 109
Xenodon semicinctus — ZAHER et al. 2009
Lystrophis semicinctus — WALLACH et al. 2014: 406 
DistributionC/N Argentina (Buenos Aires, La Pampa, Rio Negro, Neuquén, Mendoza, San Luis, San Juan, La Rioja, Santa Fe, Entre Rios, Corrientes, Chaco, Córdoba, Santiago del Estero, Formosa, Tucumán, Salta, Catamarca, Jujuy, Chubut), S Bolivia

Type locality: Buenos-Ayres et à Santa-Cruz.  
Reproductionoviparous 
TypesSyntypes: MNHN-RA 0860, MNHN-RA 1209 and MNHN-RA 3634 (skin only)
Holotype: ZSM 5/1928 (lost), female, subadult [weiseri] 
Diagnosis 
CommentSynonymy after CEI 1993 (but see entry for L. pulcher).

Distribution: Not in Paraguay where it is represented by Xenodon pulcher (fide Cacciali et al. 2016). Records of this species from Brazil seem to represent X. matogrossensis (Scrocchi & Cruz 1993). 
EtymologyNamed after Latin semi-, half, partly and Latin cinctus, surrounded, encircled. [“...Sur ce fond, on voit se détacher, d’une façon régulière, des demi-anneaux noirs... »]. (from Esteban Lavilla, pers. comm., May 2024) 
References
  • Abalos, J.W., Baez, E.C., & Nader, R. 1964. Serpientes de Santiago del Estero. Acta Zoologica Lilloana 20: 211-283
  • Cei, J. M. 1993. Reptiles del noroeste, nordeste y este de la Argentina. Museo Regionale Sci. Naturale Torino, Monografie 14: 1-949
  • Duméril, A.M.C., G. BIBRON & A.H.A. DUMÉRIL 1854. Erpétologie générale ou Histoire Naturelle complète des Reptiles. Vol. 7 (partie 1). Paris, xvi + 780 S. - get paper here
  • Freiberg, M.A. 1982. Snakes of South America. T.F.H. Publications, Neptune City, NJ, 189 pp. - get paper here
  • Giraudo, A. R., and G. J. Scrocchi 2002. Argentinian Snakes: An Annotated Checklist. Smithsonian Herp. Inf. Serv. (132): 1-53 - get paper here
  • Hoge, A.R.; Cordeiro, C.L. & Lemos Romano, S.A. 1976. Posição taxonomica de Lystrophis nattereri (Steindachner). Mem. Inst. Butantan 39 [1975]: 37-50 - get paper here
  • Koslowsky,J. 1895. Batracios y reptiles de Rioja y Catamarca. Rev. Mus. La Plata 6: 359-370 - get paper here
  • Mehrtens, J.M. 1987. Living snakes of the world in color. Sterling Publ. Co., hic., New York, NY: 480 pp.
  • Mertens, R. 1956. Das Problem der Mimikry bei Korallenschlangen. Zool. Jahrb., Abt Syst. Ökol. Geogr. Tiere 84: 541-576 + plates 6-14
  • Mertens, R. 1956. Das Problem der Mimikry bei Korallenschlangen. English Translation by Andrew Durso. SMITHSONIAN HERPETOLOGICAL INFORMATION SERVICE 160 (2023) - get paper here
  • Minoli I, Morando M, Avila LJ 2015. Reptiles of Chubut province, Argentina: richness, diversity, conservation status and geographic distribution maps. ZooKeys 498: 103-126. doi: 10.3897/zookeys.498.7476 - get paper here
  • Scott, Norman J.;Lovett, Jonny Wayne 1975. A collection of reptiles and amphibians from the Chaco of Paraguay. The University of Connecticut Occasional Papers, Biological Series 2 (16): 257-266
  • Scrocchi G J. Cruz F B. 1993. Description of a new species of the genus Lystrophis Cope and a revalidation of Lystrophis pulcher (Jan, 1863), (Serpentes; Colubridae). Pap. Avul. Zool., Sao Paulo 38 (10): 171-185. - 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.
  • Scrocchi, Gustavo J.; Cristian S. Abdala,Javier Nori, Hussam Zaher 2010. Reptiles de la provincia de Río Negro, Argentina. Fondo Ed. Rionegrino, 249 pp.
  • 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.
  • Zaher, Hussam; Grazziotin, Felipe Gobbi; Cadle, John E.; Murphy, Robert W.; Moura-Leite, Julio Cesar de; Bonatto, Sandro L 2009. Molecular phylogeny of advanced snakes (Serpentes, Caenophidia) with an emphasis on South American Xenodontines: a revised classification and descriptions of new taxa. Pap. Avulsos Zool. (São Paulo) 49 (11): 115-153 - get paper here
 
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