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Taxonomic revision of the populations assigned to Octodon degus (Hystricomorpha: Octodontidae): With the designation of a neotype for Sciurus degus G. I. Molina, 1782 and the description of a new subspecies. ZOOL ANZ 2021. [DOI: 10.1016/j.jcz.2021.02.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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D’Elía G, Teta P, Verzi DH, Cadenillas R, Patton JL. A new living species of degu, genus Octodon (Hystricomorpha: Octodontidae). J Mammal 2020. [DOI: 10.1093/jmammal/gyaa143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
We combine morphological (qualitative and quantitative data) and genetic (one mitochondrial and one nuclear gene) data from a large set of specimens of Octodon from the four currently recognized living species of the genus. The integration of the results (qualitative assessment, multivariate analysis of cranial measurements, and gene trees) allows us to state that 1) the current taxonomic scheme does not reflect the species diversity of Octodon; 2) in particular, as currently understood O. bridgesii likely is a complex of three species; 3) one of these, encompassing the southern populations of the genus, in the Araucanía Region (Chile) and Neuquén Province (Argentina), is named and described here as a new species; and 4) the mitochondrial gene tree departs from the nuclear gene tree with respect to O. pacificus and the new species here described.
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Affiliation(s)
- Guillermo D’Elía
- Instituto de Ciencias Ambientales y Evolutivas, Facultad de Ciencias, Universidad Austral de Chile, campus Isla Teja s/n, Valdivia, Chile
| | - Pablo Teta
- División Mastozoología, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia,” Ciudad Autónoma de Buenos Aires, Argentina
| | - Diego H Verzi
- CONICET, Sección Mastozoología, Facultad de Ciencias Naturales y Museo de La Plata, Universidad Nacional de La Plata, Paseo del Bosque s/n, La Plata, Argentina
| | - Richard Cadenillas
- Doctorado en Cs. m. Ecología y Evolución, Facultad de Ciencias, Universidad Austral de Chile, campus Isla Teja s/n, Valdivia, Chile
| | - James L Patton
- Museum of Vertebrate Zoology, University of California, Berkeley, CA, USA
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