Translator Disclaimer
30 June 2016 A new species of the rodent genus Necromys Ameghino (Cricetidae: Sigmodontinae: Akodontini) from the Chaco Serrano grasslands of northwestern Argentina
J. Pablo Jayat, Guillermo D'Elía, Pablo E. Ortiz, Pablo Teta
Author Affiliations +
Abstract

In this study, we name and describe a new species of the genus Necromys from northwestern Argentina based on molecular (mtDNA of 77 specimens) and morphologic (assessment of 129 specimens) evidence. Results indicate that the new form is sister species to N. amoenus and highly divergent genetically from all other species of Necromys (≥ 11.6% divergent). Similarly, the new species presents several unique morphological differences (in skin and skull characters) compared with all other species of the genus and is morphometrically distinct compared with 4 Argentine taxa. Finally, we assess the lectotype of Necromys conifer, discuss its morphologic similarities with other species of the genus, and argue for maintenance of the name Necromys. The description of this new species highlights, once again, the continuing need for collecting small mammals and conducting collections-based research.

© 2016 American Society of Mammalogists, www.mammalogy.org
J. Pablo Jayat, Guillermo D'Elía, Pablo E. Ortiz, and Pablo Teta "A new species of the rodent genus Necromys Ameghino (Cricetidae: Sigmodontinae: Akodontini) from the Chaco Serrano grasslands of northwestern Argentina," Journal of Mammalogy 97(5), 1321-1335, (30 June 2016). https://doi.org/10.1093/jmammal/gyw103
Received: 25 December 2015; Accepted: 1 June 2016; Published: 30 June 2016
JOURNAL ARTICLE
15 PAGES


Share
SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top