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Psomophis obtusus (COPE, 1863)

IUCN Red List - Psomophis obtusus - Least Concern, LC
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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Wide Ground Snake
Portuguese: Corredeira-do-Banhado 
SynonymRhadinaea obtusa COPE 1863: 101
Coronella obtusa — BOULENGER 1885
Rhadinaea obtusa — BOULENGER 1894 (2): 171
Liophis obtusus — AMARAL 1929: 89
Liophis obtusus — PETERS & OREJAS-MIRANDA 1970: 179
Rhadinaea obtusa — CEI 1993
Psomophis obtusus — MYERS & CADLE 1994
Psomophis obtusus — LEYNAUD & BUCHER 1999: 33
Psomophis obtusus — WALLACH et al. 2014: 614
Psomophis obtusus — NOGUEIRA et al. 2019 
DistributionBrazil (Rio Grande do Sul), S Paraguay, Argentina (Chaco, Entre Rios ?, Corrientes ?), Uruguay

Type locality: Paysandú, Uruguay  
Reproductionoviparous 
TypesHolotype: lost, formerly USNM, a 410+ female (Kennedy); lost fide Myers and Cadle, 1994: 24 
Diagnosis 
CommentThe species of Psomophis are most likely to be confused with species of the "Rhadinaea" brevirostris group (sensu Myers).

Type species: Rhadinaea obtusa is the type species of the genus Psomophis MYERS & CADLE 1994.

Synonymy partly after CEI 1993. 
References
  • Amaral, A. do 1929. Contribuicao ao conhecimento dos ophidios do Brasil. IV. Lista remissiva dos ophidios do Brasil. Mem. Inst. Butantan, Sao Paulo, 4: 71-125 - get paper here
  • Boulenger, G.A. 1886. A synopsis of the reptiles and batrachians of the province Rio Grande do Sul, Brazil. Ann. Mag. nat. Hist. (5) 18: 423-445 - 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
  • Carreira Vidal, Santiago 2002. Alimentación de los ofidios de Uruguay. Asoc. Herp. Esp., Monograf. Herp. 6, 127 pp. - get paper here
  • Carreira, S.; Brazeiro, A.; Camargo, A.; da Rosa, I.; Canavero, A. & Maneyro, M. 2012. DIVERSITY OF REPTILES OF URUGUAY: KNOWLEDGE AND INFORMATION GAPS. Bol. Soc. Zool. Uruguay (2a época) 21 (1-2): 9-29 - get paper here
  • Cei, J. M. 1993. Reptiles del noroeste, nordeste y este de la Argentina. Museo Regionale Sci. Naturale Torino, Monografie 14: 1-949
  • Cope, E.D. 1863. Descriptions of new American Squamata in the Museum of the Smtihsonian Institution. Proc. Acad. Nat. Sci. Philadelphia 15 [1863]: 100-106 - get paper here
  • Di Pietro, Diego O.; Nenda, Santiago J.; Williams, Jorge D. 2010. New records of Psomophis obtusus (Cope, 1863) (Serpentes: Dipsadidae) in Argentina and Uruguay. Cuadernos de Herpetología 24 (2) - 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
  • Lema, Th. de 1994. Lista comentada dos répteis occorentes nor Rio Grande do Sul, Brasil. Comun. Mus. Cienc. Tecnol. PUCRS, Sér. Zool., Porto Alegre 7: 41-150
  • Leynaud, Gerardo C. and Enrique H. Bucher 1999. La fauna de serpientes del Chaco Sudamericano: diversidad, distribución geografica y estado de conservación. Academia Nacional de Ciencias Miscelanea (98):1-46
  • Myers, C W. Cadle J E. 1994. A new genus for South American snakes related to Rhadinaea obtusa Cope (Colubridae) and resurrection of Taeniophallus Cope for the "Rhadinaea" brevirostris group. American Museum Novitates (3102): 1-33 - 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
  • Prigioni, C.; C. Borteiro; F. Kolenc. 2011. Amphibia and Reptilia, Quebrada de los Cuervos, Departamento de Treinta y Tres, Uruguay. Check List 7 (6): 763-767 - get paper here
  • Scrocchi, G.J. & Giraudo,A. 1997. El género Psomophis (Serpentes - Colubridae) en la Argentina. Cuadernos de Herpetología 11 (1): - get paper here
  • TOZETTI, A. M., MOSER, C. F., & COLOMBO, P. 2023. AMPHIBIANS AND REPTILES OF TAIM, A BRAZILIAN RAMSAR SITE: CURRENT KNOWLEDGE AND A POSSIBLE CASE OF LOCAL EXTINCTION. Herpetological Conservation and Biology, 18(1), 38-47 - 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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