Skip to main content

Advertisement

Log in

A New Species of Ctenomys (Rodentia: Ctenomyidae) from Patagonia Related to C. sociabilis

  • Original Paper
  • Published:
Journal of Mammalian Evolution Aims and scope Submit manuscript

A Correction to this article was published on 04 December 2021

This article has been updated

Abstract

The genus Ctenomys includes a high number of taxa, with at least ten species from Patagonia and three recently described species for northeastern Chubut Province (Argentina). Ctenomys sociabilis is a social species of the genus Ctenomys and is currently distributed in the surrounding area of Sierra Cuyin Manzano (Neuquén Province), with a recently extinct population that occurred in Laguna Nahuelquir (Cushamen, Chubut Province). Molecular analyses have placed C. sociabilis at the base of Ctenomys clade, as the sister species to all other Ctenomys. Based on a morphological assessment (qualitative and quantitative) and DNA sequencing, we describe a new species of Ctenomys from Esquel, Chubut Province. Phylogenetic analysis shows the new species to be closely related to C. sociabilis, with evidence of solitary behavior. This new species is the first reported to be closely related phylogenetically to Ctenomys sociabilis at the base of the Ctenomys phylogeny. We provide anatomical comparisons between the new species and other species of Ctenomys from Patagonia, especially C. sociabilis.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8

Similar content being viewed by others

Change history

References

  • Allen JA (1903) Descriptions of new rodents from southern Patagonia, with a note on the genus Euneomys Coues, and an addendum to article IV, on Siberian mammals. Bull Am Museum Nat Hist 19:185–197

    Google Scholar 

  • Anderson S, Yates TL, Cook JA (1987) Notes on Bolivian mammals 4: The genus Ctenomys (Rodentia, Ctenomyidae) in the eastern lowlands. Am Mus Novit 2891:1–20

    Google Scholar 

  • Bennett ET (1836) On a new species of Ctenomys and other rodents collected near the Straits of Magellan by Capt. P. P. King, R. N. Proc Zool Soc London 3:189–91

    Google Scholar 

  • Bidau CJ (2015) Family Ctenomyidae Lesson 1842. In: Patton JL, Pardiñas UFL, D'Elía G (eds). Mammals of South America, Volume 2, The University of Chicago Press, Chicago and London, pp 818–876

  • Chan YL, Lacey EA, Pearson OP, Hadley EA (2005) Ancient DNA reveals Holocene loss of genetic diversity in a South American rodent. Biol Lett 1:423–426. https://doi.org/10.1098/rsbl.2005.0354

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Contreras JR, de Contreras A (1984) Craneología y craneometría del género Ctenomys. II: Craneometría. Hist Nat 4:245–248

    Google Scholar 

  • Cook JA, Anderson S, Yates TL (1990) Bolivian mammals 6. The genus Ctenomys (Rodentia, Ctenomyidae) in the highlands. Am Mus Novit 2980:1–27

    Google Scholar 

  • de Freitas TRO, Fernandes FA, Fornel R, Roratto PA (2012) An endemic new species of tuco-tuco, genus Ctenomys (Rodentia: Ctenomyidae), with a restricted geographic distribution in southern Brazil. J Mammal 93:1355–1367. https://doi.org/10.1644/12-mamm-a-007.1

    Article  Google Scholar 

  • del Valle HF, Rostagno CM, Coronato PFR (2008) Sand dune activity in north-eastern Patagonia. J Arid Environ 72:411–422. https://doi.org/10.1016/j.jaridenv.2007.07.011

    Article  Google Scholar 

  • D'Elía G, Teta P, Lessa EP (2021) A short overview of the systematics of Ctenomys: species limits and pylogenetic relationship. In: de Freitas TRO, Gonçalves GL, Maestri R (eds) An Evolutionary Approach to the Diversity of a Neotropical Subterranean Rodent. Springer Nature, pp. 17–41

  • Di Rienzo JA, Casanoves F, Balzarini MG (2018) InfoStat versión 2018 Grupo InfoStat, FCA, Universidad Nacional de Córdoba, Argentina. URL http://www.infostat.com.ar

  • Feito R, Gallardo MH (1982) Sperm morphology of the Chilean species of Ctenomys (Octodontidae). J Mammal 63:658–661

    Article  Google Scholar 

  • Fick SE, Hijmans RJ (2017) WorldClim 2: new 1-km spatial resolution climate surfaces for global land areas. Int J Climatol 37:4302–4315. https://doi.org/10.1002/joc.5086

    Article  Google Scholar 

  • Filatov DA (2002) Proseq: A software for preparation and evolutionary analysis of DNA sequence data sets. Mol Ecol Notes 2:621–624. https://doi.org/10.1046/j.1471-8278

    Article  CAS  Google Scholar 

  • Francescoli G, Quirici V, Sobrero R (2012) Patterns of variation in the tympanic bulla of tuco-tucos (Rodentia, Ctenomyidae, Ctenomys). Acta Theriol (Warsz) 57:153–163. https://doi.org/10.1007/s13364-011-0064-7

    Article  Google Scholar 

  • González B, Brook F, Martin GM (2020) Variability and variation in Rhyncholestes raphanurus Osgood (Paucituberculata, Caenolestidae). Rev Chil Hist Nat 93:1–19. https://doi.org/10.1186/s40693-020-00089-6

    Article  Google Scholar 

  • Hill JE (1935) The cranial foramina in rodents. J Mammal 16:121–129

    Article  Google Scholar 

  • Hsu JL, Crawford JC, Tammone MN, Ramakrishnan U, Lacey EA, Hadly EA (2017). Genomic data reveal a loss of diversity in two species of tuco-tucos (genus Ctenomys) following a volcanic eruption. Sci. Rep 7: 1. https://doi.org/10.1038/s41598-017-16430-1

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Irisarri J, Mendía J, Roca C, Buduba C, Valenzuela F, Epele F (1995) Zonificación de la aptitud forestal de los suelos de la Precordillera de Chubut. (Hojas El Maitén, Cholila, Esquel, Trevelin y Corcovado. Cartografía bajo soporte magnético y en sistema de información geográfico). Dir Bosques la Prov Chubut

  • IUSS Grupo de Trabajo WRB (2007) Base Referencial Mundial del Recurso Suelo, Segunda ed. FAO, Roma

  • Kelt DA, Gallardo MH (1994) A new species of Tuco-Tuco, genus Ctenomys (Rodentia: Ctenomyidae) from Patagonian Chile. J Mammal 75:338–348

    Article  Google Scholar 

  • Klingenberg CP (2011) MorphoJ: an integrated software package for geometric morphometrics. Mol Ecol Resour 11:353–35. https://doi.org/10.1111/j.1755-0998.2010.02924.x

    Article  PubMed  Google Scholar 

  • Kubiak BB, Gutiérrez EE, Galiano D, Maestri R, de Freitas TRO (2017) Can niche modeling and geometric morphometrics document competitive exclusion in a pair of subterranean rodents (genus Ctenomys) with tiny parapatric distributions? Sci Rep 7:1–13. https://doi.org/10.1038/s41598-017-16243-2

    Article  CAS  Google Scholar 

  • Kumar S, Stecher G, Li M, Knyaz C, Tamura K (2018) MEGA X: Molecular evolutionary genetics analysis across computing platforms. Mol Biol Evol 35:1547–1549. https://doi.org/10.1093/molbev/msy096

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Lacey EA, Cutrera AP (2007) Behavior, demography, and immunogenetic variation: New insights from subterranean rodents. In: Begall S, Burda H, Schleich CE (eds) Subterranean Rodents. Springer Nature, pp 341–355. https://doi.org/10.1007/978-3-540-69276-8_26

  • Lacey EA, Wieczorek JR (2004) Kinship in colonial tuco-tucos: Evidence from group composition and population structure. Behav Ecol 15:988–996. https://doi.org/10.1093/beheco/arh104

    Article  Google Scholar 

  • Lacey EA, Braude SH, Wieczorek JR (1997) Burrow sharing by colonial tuco-tucos (Ctenomys sociabilis). J Mammal 78:556–562. https://doi.org/10.2307/1382907

    Article  Google Scholar 

  • Lacey EA, Takenaka R, LaBarbera K, Tammone MN (2019) Ecological and demographic impacts of a recent volcanic eruption on two endemic patagonian rodents. PLoS One 14(3): e0213311. https://doi.org/10.1371/journal.pone.0213311

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Leipnitz LT, Fornel R, Ribas LEJ, Kubiak BB, Galiano D, de Freitas TRO (2020) Lineages of Tuco-Tucos (Ctenomyidae: Rodentia) from Midwest and Northern Brazil: Late Irradiations of Subterranean Rodents Towards the Amazon. Fores J Mamm Evol 27:161-176. https://doi.org/10.1007/s10914-018-9450-0

    Article  Google Scholar 

  • León RJC, Bran D, Collantes M, Paruelo JM, Soriano A (1998) Grandes unidades de vegetación de la Patagonia extra andina. Ecol Austral 8:125–144.

    Google Scholar 

  • Lessa EP, Cook JA (1998) The molecular phylogenetics of tuco-tucos (genus Ctenomys, rodentia: octodontidae) suggests an early burst of speciation. Mol Phylogenet Evol 9:88–99. https://doi.org/10.1006/mpev.1997.0445

    Article  CAS  PubMed  Google Scholar 

  • Lizarralde M, Bolzán A, Bianchi M (2003). Karyotype evolution in South American subterranean rodents Ctenomys magellanicus (Rodentia: Octodontidae): chromosome rearrangements and (TTAGGG) n telomeric sequence localization in 2n=34 and 2n=36 chromosomal forms. Hereditas, 139(1):13–17. https://doi.org/10.1111/j.1601-5223.2003.01696.x

    Article  PubMed  Google Scholar 

  • Londoño-Gaviria M, Teta P, Ríos, SD, Patterson BD (2019) Redescription and phylogenetic position of Ctenomys dorsalis Thomas 1900, an enigmatic tuco tuco (Rodentia, Ctenomyidae) from the Paraguayan Chaco. Mammalia 83:227–236. https://doi.org/10.1515/mammalia-2018-0049

    Article  Google Scholar 

  • Martin GM (2018) Variability and variation in Dromiciops Thomas, 1894 (Marsupialia, Microbiotheria, Microbiotheriidae). J Mammal 99:159–173. https://doi.org/10.1093/jmammal/gyx175

    Article  Google Scholar 

  • Meachen-Samuels JA, van Valkenburgh B (2009) Forelimb indicators of prey-size preference in the felidae. J Morphol 270:729–744. https://doi.org/10.1002/jmor.10712

    Article  PubMed  Google Scholar 

  • Mosimann JE (1970) Size allometry: size and shape variables with characterizations of the lognormal and generalized gamma distributions. J Am Stat Assoc 65:930–945. https://doi.org/10.1080/01621459.1970.1048113636

    Article  Google Scholar 

  • Olivares AI, Verzi DH (2015) Systematics, phylogeny and evolutionary pattern of the hystricognath rodent Eumysops (Echimyidae) from the Plio–Pleistocene of southern South America. Hist Biol 27:1042–1061. https://doi.org/10.1080/08912963.2014.929672

    Article  Google Scholar 

  • Osgood WH (1943) The mammals of Chile. F Mus Nat Hist Zool Ser 30:1–268

    Google Scholar 

  • Oyarzabal M, Clavijo J, Oakley L, Biganzoli F, Tognetti P, Barberis I, Maturo HM, Aragón R, Campanello PI, Prado D, Oesterheld M, León RJC (2018) Unidades de vegetación de la Argentina. Ecol Austral 28:40–63. https://doi.org/10.25260/ea.18.28.1.0.399

    Article  Google Scholar 

  • Panigatti L (2010) Argentina: 200 Años, 200 Suelos, Ediciones INTA, Buenos Aires

  • Parada A, D'Elía G, Bidau CJ, Lessa EP (2011) Species groups and the evolutionary diversification of tuco-tucos, genus Ctenomys (Rodentia: Ctenomyidae). J Mammal 92:671–682. https://doi.org/10.1644/10-mamm-a-121.1

    Article  Google Scholar 

  • Pearson OP, Christie MI (1985) Los tuco-tucos (GENERO Ctenomys) de los parques nacionales Lanin y Nahuel Huapi, Argentina. Hist Nat 5:337–343

    Google Scholar 

  • Prohaska F (1976) The climate of Argentina, Paraguay and Uruguay. In Schwerdtfeger W (ed) Climates in Central and Southern America. World Survey of Climatology, Vol. 12. Elsevier, pp 13–122

  • Rostagno CM, Bouza PJ, Videla LS, Saín CL, Cortés EG (2017) Suelos y geomorfología. In: Udrizar Sauthier DE, Pazos EG, Arías AM (eds) Reserva de Vida Silvestre San Pablo de Valdés10 años: Conservando El Patrimonio Natural y cultural de Península Valdés Patagonia Argentina, 1era ed. Fundación de Vida Silvestre, Puerto Madryn, pp 56–71

  • Rholf JF (2015) The tps series of software. Hystrix, Ital J Mammal 26:1–4

    Google Scholar 

  • Sánchez RT, Tomasco HI, Díaz MM, Barquez RM (2018) Contribution to the knowledge of the rare “Famatina tuco-tuco”, Ctenomys famosus Thomas 1920 (Rodentia: Ctenomyidae). Mammalia. https://doi.org/10.1515/mammalia-2017-0131

    Article  Google Scholar 

  • Sikes RS and use committee of the american society of Mammalogists (2016) Guidelines of the American Society of Mammalogists for the use of wild mammals in research and education. J Mammal 97:663–688. https://doi.org/10.1093/jmammal/gyw078

    Article  Google Scholar 

  • Smith MF, Patton JL (1999) Phylogenetic relationships and the radiation of sigmodontine rodents in South America: evidence from cytochrome-b J Mammal Evol 6:89–8128

    Google Scholar 

  • Soil Survey Staff (2014) Keys to Soil Taxonomy, 12th ed. USDA-Natural Resources Conservation Service, Washington DC.

    Google Scholar 

  • Tammone MN, Lacey EA, Relva MA (2012) Habitat use by colonial tuco-tucos (Ctenomys sociabilis): Specialization, variation, and sociality. J Mammal 93:1409–1419. https://doi.org/10.1644/11-MAMM-A-266.1

    Article  Google Scholar 

  • Tammone MN, Lavin BR, Pardiñas UFJ, Lacey EA (2016) Post-extinction discovery of a population of the highly endemic colonial tuco-tuco (Ctenomys sociabilis). J Mammal 97:1763–2016. https://doi.org/10.1093/jmammal/gyw146

    Article  Google Scholar 

  • Tammone MN, Pardiñas UFJ, Lacey EA (2018) Identifying drivers of historical genetic decline in an endemic Patagonian rodent, the colonial tuco-tuco, Ctenomys sociabilis (Rodentia: Ctenomyidae). Biol J Linn Soc 10:1–15.

    Google Scholar 

  • Teta P, D'Elía G (2020) Uncovering the species diversity of subterranean rodents at the end of the World: three new species of Patagonian tuco-tucos (Rodentia, Hystricomorpha, Ctenomys). PeerJ 8:e9259. https://doi.org/10.7717/peerj.9259

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Teta P, D'Elía G, Opazo JC (2020) Integrative taxonomy of the southernmost tucu-tucus in the world: differentiation of the nominal forms associated with Ctenomys magellanicus Bennett, 1836 (Rodentia, Hystricomorpha, Ctenomyidae). Mamm Biol 100:125–139. https://doi.org/10.1007/s42991-020-00015-z

    Article  Google Scholar 

  • Thomas O (1910) XXXIII. A collection of mammals from eastern Buenos Ayres, with descriptions of related new mammals from other localities. Ann Mag Nat Hist Ser 8 5:239–247

  • Thomas O (1919) On mammals collected by Sr. E Budin in North-western Patagonia. Ann Mag Nat Hist Ser 9 3:199–212

  • Verzi DH, Olivares AI (2006) Craniomandibular joint in South American burrowing rodents (Ctenomyidae): Adaptations and constraints related to a specialized mandibular position in digging. J Zool 270:488–501. https://doi.org/10.1111/j.1469-7998.2006.00167.x

    Article  Google Scholar 

  • Verzi DH, Olivares AI, Morgan CC (2014) Phylogeny and evolutionary patterns of south American octodontoid rodents. Acta Palaeontol Pol 59:757–769. https://doi.org/10.4202/app.2012.0135

    Article  Google Scholar 

  • Vincon SG (2004) Sistemática y distribución del género Ctenomys (RODENTIA, OCTODONTIDAE) en los alrededores de Esquel (Chubut, Argentina). Dissertation, Universidad Nacional de la Patagonia San Juan Bosco

  • Wahlert JH (1985) Cranial foramina of rodents. In: Luckett WP, Hartenberger JL (eds) Evolutionary Relationships among Rodents. Springer, Boston, pp 311–332

    Chapter  Google Scholar 

  • Wible JR, Wang Y, Li C, Dawson MR (2005) Cranial anatomy and relationships of a new ctenodactyloid (Mammalia, Rodentia) from the early Eocene of Hubei Province, China. Ann Carnegie Mus 74:91–150. https://doi.org/10.2992/0097-4463(2005)74[91:caaroa]2.0.co;2

    Article  Google Scholar 

  • Woods CA (1972) Comparative myology of jaw, hyoid, and pectoral appendicular regions of New and Old World hystricomorph rodents. Bull Am Mus Nat Hist 147:115–198

    Google Scholar 

  • Wlasiuk G, Garza JC, Lessa EP (2003) Genetic and geographic differentiation in the Rio Negro tuco-tuco (Ctenomys rionegrensis): inferring the roles of migration and drift from multiple genetic markers. Evolution 57:913–926

Download references

Acknowledgements

The authors specially thank Mr. Guillermo Brook for economic support during the field work, Dr. Soledad Morales for botanical consultation, Dr. Diego Verzi for collaboration in morphological assessment and revising the manuscript, Dr. Estefanía Bagnato for her collaboration with the sperm morphology assessment, and MG Fernanda Valenzuela for her help and always having the time for giving feedback. We especially thank Dr. Mauro Tammone, Dr. Eileen Lacey, and Dr. Juan Pablo Amaya for providing us with records of C. sociabilis vocalizations. We are grateful to the curators and staff of the visited collections: Dr. Diego Verzi, Dr. Itatí Olivares and Nahuel De Santi (MLP), Dr. Sergio Bogan (CFA), Dr. Ulyses Pardiñas and Dr. Mauro Tammone (CENPAT), Dr. Sergio Lucero and Dr. Pablo Teta (MACN), Freddy Mondaca and Dr. Guillermo D´Elía (UACH). We are grateful to two anonymous reviewers for helping us to improve our manuscript. GMM thanks E. Watkins and M. Simeon for economic support. BF thanks M. Dromaz for help in the field.

Funding

This work was supported with authors’ personals funds.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Federico Brook.

Ethics declarations

Ethics Approval

All work with the animals was done with the permission of the Secretaría de Flora y Fauna del Chubut, and following guidelines approved by the American Society of Mammologists (Sikes et al. 2016).

Conflicts of Interest

G. Martin is an associate editor for the journal but was not involved in evaluation of this manuscript.

Electronic supplementary material

Below is the link to the electronic supplementary material.

Supplementary file1 (DOCX 135 KB)

Supplementary file2 (XLS 85 KB)

Appendix I

Appendix I

List of the specimens analyzed during this study. Names and acronyms of the museums and mammalogy collections from where specimens were analyzed are: Colección Félix de Azara (CFA-MA), Centro Nacional Patagónico (CNP), Laboratorio de Investigación en Evolución y Biodiversidad (LIEB-M), Museo Argentino de Ciencias Naturales “Bernardino Rivadavia” (MACN), Museo de La Plata (MLP), Muséum d'histoire naturelle (MHNG), Museum of Vertebrate Zoology (MVZ). Text in brackets indicates the type of analysis where the specimen was used: L: linear morphometric; G: geometric morphometrics. All specimens listed were used for morphological comparisons.

Ctenomys bidaui: Argentina. Chubut Province: Puerto Pirámides: CFA-MA-11857♀ (L,G), 11865, 11867♂ (L,G).

Ctenomys contrerasi. Argentina. Chubut Province: Biedma, Estancia El Desempeño: CFA-MA-11835, 11848, 11853, 11854, 11855, 11863, 11864♀(L,G); CNP 02♀ (L,G); CFA-MA-11858–11861, 11868♀ (L); Cerro Cóndor, 15 km SE Campo de Pichiñan: CNP-931 (L),1437♀(G); Puerto Madryn, Bahía Craker: CNP-2171–2172(G); Quichaura, Estancia Quichaura: CNP-1043♂(G).

Ctenomys plebiscitum sp. nov. Argentina. Chubut Province: Esquel, Cerro 21: LIEB-M-1725♀ (L,G); Esquel, ruta vieja Esquel-Trevelin: LIEB-M-1683, 1688, 1689, 1690, 1692, 1710, 1743, 1771, 1772♀, LIEB-M-1684, 1685, 1686, 1687, 1691 ♂ (L,G); Esquel-Laguna La Zeta: LIEB-M-001, 003, 1732, 1768♂, LIEB-M-1769, 1770, 1733, 1734♀, LIEB-M-1740, 1741, 1742 (L,G).

Ctenomys haigi: Argentina. Chubut Province. Carhué Niyeu CNP-4566 (L,G); Colan Conué: LIEB-M-1694, 1695, 1696, 1697, 1698, 1699, 1700, 1709; El Maitén: CNP-2353, LIEB-M-1704, 1705, 1707♂, LIEB-M-1703, 1706 ♀(L,G); El Maitén: Laguna Nahuelquir: MHNG-1276.071♀(G); Esquel, Arroyo Malloco: LIEB-M-041, 081, 082, 089, 138, 299, 1661, 1662; Esquel, Colonia Nahuel Pan: LIEB-M-1659, 1660 (L,G)♀; Gualjaina, Arroyo Pescado: LIEB-M-1664–1679 ♀ LIEB-M-1665, 1666, 1667, 1730, 1731♂. LIEB-M-1663, 1672, 1668, 1669, 1670, 1671, 1673 (L); Gualjaina, Cañadón del Loro: LIEB-M-1702 (L); Gualjaina, Costa de Gualjaina: LIEB-M-1701, 1708; Gualjaina, Cueva Watkins: LIEB-M-132, 133, 134, 135, 136, 137, 1682; Paso del Sapo LIEB-M-1674, 1677, 1678♀, 1675–1676♂ (L); Talagapa: CNP-173 (L); Unknown: LIEB-M-1658 (L,G). Argentina. Río Negro Province. Aguada Cecilio: MACN-Ma-28.95 ♀ (L,G); Choele-Choel MACN-Ma-28.102–28.104 ♀ (L,G), MACN-Ma-28.103♂ (L); Comallo: CFA-MA-11336, 11337, 11338, 11343♀ 11335♂-11373, 11376 (L,G); La Paloma: MACN-Ma-23592 ♀ (L,G), Paja Alta:MACN-Ma-28.92, 28.94 ♀, MACN-Ma-28.93♂ (L,G); Pilcaniyeu: CFA-Ma-11342♂ (L,G); San Carlos de Bariloche: CFA-MA-11339, 12441, 12288♂ 11350, 12424, 12287, 12289, 12292, MLP-5.I.49.4 (L,G), MLP-9.II.99.6♂, MLP-5.I.49.5 (L); San Carlos de Bariloche, Estancia San Ramón: CFA-11378♀ (L,G); Unknown: MACN-28.96, 28.137 ♀(L,G), CFA-MA-12425, MACN-Ma-28.135, 19051 (L,G).

Ctenomys sericeus. Argentina. Chubut Province. Cerro Cóndor: CNP-1416 (G); Lago Blanco: LIEB-M-1632, 1633, 1634 (L,G). Chile. General Carrera Province. Chile Chico: UACH-3643, 3645, 3646, 3647, 3648, 3649, 3650, 3652, 3653, 3654, 4434, 4435, 4436, 4437, 4438, 4439(L,G)♀, 5645, 5646♀, 3642, 3644, 3651♂ (L). Coyhaique Province. Coyhaique Alto, Fundo Los Flamencos. UACH-4430, 4431, 4432, 4433♀ (L,G). 4429♂ (L,G).

Ctenomys sociabilis. Argentina. Neuquén Province. Villa La Angostura, Estancia Rincón Grande: CNP-5512, 5513, 4B4C♀ (L,G), SC♀ (L), CNP-5511♂ (L,G), CNP-2354, MNT-089 (L,G); Villa La Angostura, Estancia Fortín Chacabuco: MVZ-165861♀ (G), MACN-Ma-20655♀ (L,G), MNT-120 (G). Argentina. Chubut Province. El Maitén, Laguna Nahuelquir: MACN-Ma-16470, 16471♀ (G), 16472♀ (L) MHNG-1276.068, 1276.069, 1276.70, 1292.067, 1292.068, 1485.022, 1485.029, 1485.033♀, 1276.067 ♂(G).

Ctenomys thalesi. Argentina. Chubut Province. Rawson, Establecimiento La Clara: CFA-11844, 11845, 11846, 11850, 11852, 11862, 11866♀, 11847, 11849♂(L,G).

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Brook, F., Tomasco, I.H., González, B. et al. A New Species of Ctenomys (Rodentia: Ctenomyidae) from Patagonia Related to C. sociabilis. J Mammal Evol 29, 237–258 (2022). https://doi.org/10.1007/s10914-021-09570-9

Download citation

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10914-021-09570-9

Keywords

Navigation