The IUCN Red List of Threatened Species™ ISSN 2307-8235 (online) IUCN 2008: T56039543A56039563 Pseudotomodon trigonatus, False Tomodon Snake Assessment by: Arzamendia, V., Fitzgerald, L., Giraudo, A., Kacoliris, F., Montero, R., Pelegrin, N., Scrocchi, G. & Williams, J. View on www.iucnredlist.org Citation: Arzamendia, V., Fitzgerald, L., Giraudo, A., Kacoliris, F., Montero, R., Pelegrin, N., Scrocchi, G. & Williams, J. 2016. Pseudotomodon trigonatus. The IUCN Red List of Threatened Species 2016: e.T56039543A56039563. http://dx.doi.org/10.2305/IUCN.UK.2016- 1.RLTS.T56039543A56039563.en Copyright: © 2016 International Union for Conservation of Nature and Natural Resources Reproduction of this publication for educational or other non-commercial purposes is authorized without prior written permission from the copyright holder provided the source is fully acknowledged. Reproduction of this publication for resale, reposting or other commercial purposes is prohibited without prior written permission from the copyright holder. For further details see Terms of Use. The IUCN Red List of Threatened Species™ is produced and managed by the IUCN Global Species Programme, the IUCN Species Survival Commission (SSC) and The IUCN Red List Partnership. The IUCN Red List Partners are: BirdLife International; Botanic Gardens Conservation International; Conservation International; Microsoft; NatureServe; Royal Botanic Gardens, Kew; Sapienza University of Rome; Texas A&M University; Wildscreen; and Zoological Society of London. If you see any errors or have any questions or suggestions on what is shown in this document, please provide us with feedback so that we can correct or extend the information provided. THE IUCN RED LIST OF THREATENED SPECIES™ Taxonomy Kingdom Phylum Class Order Family Animalia Chordata Reptilia Squamata Dipsadidae Taxon Name: Pseudotomodon trigonatus (Leybold, 1873) Synonym(s): • Pelias trigonatus Leybold, 1873 Common Name(s): • English: False Tomodon Snake Assessment Information Red List Category & Criteria: Least Concern ver 3.1 Year Published: 2016 Date Assessed: November 12, 2014 Justification: Listed as Least Concern because extent of occurrence, number of locations, and population size are relatively large, and because the species probably is not declining fast enough to qualify for any of the threatened categories. Geographic Range Range Description: This species is endemic to Argentina and is distributed through the western and southern parts of this country (Avila 2009, Giraudo et al. 2012) Country Occurrence: Native: Argentina (Buenos Aires, Catamarca, Chubut, Córdoba, La Pampa, La Rioja, Mendoza, Neuquén, Rio Negro, San Juan, San Luis, Santiago del Estero) © The IUCN Red List of Threatened Species: Pseudotomodon trigonatus – published in 2016. 1 http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T56039543A56039563.en Distribution Map Pseudotomodon trigonatus © The IUCN Red List of Threatened Species: Pseudotomodon trigonatus – published in 2016. 2 http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T56039543A56039563.en Population This species is relatively common. Current Population Trend: Stable Habitat and Ecology (see Appendix for additional information) This species is found in Monte phytogeographic region (Avila 2009). Systems: Terrestrial Use and Trade This species is not utilized or traded. Threats No major threats are known. Conservation Actions (see Appendix for additional information) This species is categorized as Data Deficient in Argentina (Giraudo et al. 2012). Credits Assessor(s): Arzamendia, V., Fitzgerald, L., Giraudo, A., Kacoliris, F., Montero, R., Pelegrin, N., Scrocchi, G. & Williams, J. Reviewer(s): Bowles, P. Facilitators(s) and NatureServe Compiler(s): © The IUCN Red List of Threatened Species: Pseudotomodon trigonatus – published in 2016. 3 http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T56039543A56039563.en Bibliography Avila, L.J. 2009. Reptilia, Squamata, Dipsadidae, Pseudotomodon trigonatus (Leybold, 1873): Distribution extension. Check List 5(3): 191-193. Giraudo, A.R., Arzamendia, V., Bellini, G.P., Bessa, C.A., Calamante, C.C., Cardozo, G., Chiaraviglio, M., Costanzo, M.B., Etchepare, E.G., Di Cola, V., Di Pietro, D., Kretzschmar, S., Palomas, S., Nenda, S.J., Rivera, P.C., Rodríguez, M.E., Scrocchi, G.J. and Williams, J. D. 2012. Categorización del estado de conservación de las Serpientes de la República Argentina. Cuadernos de Herpetología 26(3): 303-326. IUCN. 2016. The IUCN Red List of Threatened Species. Version 2016-1. Available at: www.iucnredlist.org. (Accessed: 30 June 2016). Scrocchi, G. 1997. Acerca de la localidad tipo de Bothrops ammodytoides Leybold (Serpentes: viperidae) y Pseudotomodon trigonatus (Leybold)(Serpentes: Colubridae). Cuadernos de Herpetología 11(1-2): 69- 70. Citation Arzamendia, V., Fitzgerald, L., Giraudo, A., Kacoliris, F., Montero, R., Pelegrin, N., Scrocchi, G. & Williams, J. 2016. Pseudotomodon trigonatus. The IUCN Red List of Threatened Species 2016: e.T56039543A56039563. http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T56039543A56039563.en Disclaimer To make use of this information, please check the Terms of Use. External Resources For Images and External Links to Additional Information, please see the Red List website. © The IUCN Red List of Threatened Species: Pseudotomodon trigonatus – published in 2016. 4 http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T56039543A56039563.en Appendix Habitats (http://www.iucnredlist.org/technical-documents/classification-schemes) Major Season Suitability Habitat Importance? 3. Shrubland -> 3.4. Shrubland - Temperate Resident Suitable Yes Conservation Actions in Place (http://www.iucnredlist.org/technical-documents/classification-schemes) Conservation Actions in Place In-Place Land/Water Protection and Management Occur in at least one PA: Yes © The IUCN Red List of Threatened Species: Pseudotomodon trigonatus – published in 2016. 5 http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T56039543A56039563.en The IUCN Red List of Threatened Species™ ISSN 2307-8235 (online) IUCN 2008: T56039543A56039563 The IUCN Red List Partnership The IUCN Red List of Threatened Species™ is produced and managed by the IUCN Global Species Programme, the IUCN Species Survival Commission (SSC) and The IUCN Red List Partnership. The IUCN Red List Partners are: BirdLife International; Botanic Gardens Conservation International; Conservation International; Microsoft; NatureServe; Royal Botanic Gardens, Kew; Sapienza University of Rome; Texas A&M University; Wildscreen; and Zoological Society of London. THE IUCN RED LIST OF THREATENED SPECIES™ © The IUCN Red List of Threatened Species: Pseudotomodon trigonatus – published in 2016. 6 http://dx.doi.org/10.2305/IUCN.UK.2016-1.RLTS.T56039543A56039563.en.