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Palusophis bifossatus

Rio Tropical Racer


Palusophis bifossatus

(Raddi, 1820)
Ñacaniñá de Monte
Jararacuçú do Brejo
Family: Colubridae
Order: Squamata
Class: Reptilia
Phylum / Division: Chordata
Kingdom: Animalia
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Synonyms: Mastigodryas bifossatus.




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Description


Palusophis bifossatus is a species of snake of the family Colubridae.

Geographic range: The snake is found in some central and central eastern parts of Brazil, Bolivia, Colombia, Paraguay, Peru, and northern Uruguay. It has the common name of Rio tropical racer. It is monotypic in the genus Palusophis.

Source: Wikipedia, article Palusophis bifossatus. Content adapted from Wikipedia, available under the CC BY-SA 4.0 license. Accessed on 16/07/2026.





Geographic distribution


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Species photographs

Count: 10

Foto
Photography ID: 649603
  Juvenile
Colonia Carlos Pellegrini
Corrientes
Argentina
08/12/2025
Diego Oscar
Foto
Photography ID: 511426
  Adult
Colonia Carlos Pellegrini
Corrientes
Argentina
10/21/2022
Diego Oscar
Foto
Photography ID: 406908
♂ ♀  Adult
Parque Nacional Río Pilcomayo
Formosa
Argentina
07/21/2019
Guillermo Menéndez
Foto
Photography ID: 298859
  Adult
Colonia Carlos Pellegrini
Corrientes
Argentina
05/26/2013
Gabriel Moresco
Foto
Photography ID: 233899
  Adult
Capitan Solari
Chaco
Argentina
11/03/2017
Pablo Capovilla



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Species vocalizations

Last vocalizations published



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Species videos

Count: 1


Video ID: 2940
  Adult
Capitan Solari
Chaco
Argentina
11/03/2017
Pablo Capovilla


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Species reports



 Detail of places sorted by number of records





Species records

Count: 16



Page 1 of 2
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
235019912/08/2025ArgentinaCorrientesPuesto Guardaparque - Centro de Interpretación, Colonia Carlos PellegriniDiego Oscar
233257417/07/2025ArgentinaChacoSendero la ralera, Parque Nacional ChacoPeter Vidana
201887119/03/2024ArgentinaCorrientesCamino de Colonia Carlos Pellegrini a Esteros del Camba Trapo1Diego Oscar
181751524/08/2023ArgentinaChacoCamping La Fidelidad a orillas del río Bermejo, Parque Nacional El ImpenetrableAlejandro Mouchard
173831221/03/2023ArgentinaCorrientesParaje Uguaí, Esteros del Iberá1Diego Oscar
166258121/10/2022ArgentinaCorrientesColonia Carlos PellegriniDiego Oscar
160555303/07/2022ArgentinaSanta FeCamping Municipal, ReconquistaNilo Casco
155508428/02/2022ArgentinaSanta FeRp 96s1Maximiliano Sager
227797411/09/2021ArgentinaCorrientesParque Nacional MburucuyáEsteban Geronimo Javier Luque
139314911/04/2021ArgentinaSanta FeIreneo Faccioli, ReconquistaNilo Casco
Page 1 of 2

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Recommended citation
Please use the following reference when citing this species account.
EcoRegistros. 2026. Rio Tropical Racer (Palusophis bifossatus) – Species account. Accessed from www.ecoregistros.org on 14/09/2026.