Genus Akodon Meyen, 1833

ULYSES F. J. PARDIÑAS; PABLO TETA; DIEGO ALVARADO-SERRANO; LENA GEISE; J. PABLO JAYAT; PABLO E. ORTIZ; PABLO R. GONÇALVES; GUILLERMO D'ELÍA

Mammals of South America, Volume 2

The University of Chicago Press

Año: 2015; p. 144 - 204

Proposed early in the first half of 19th century, Akodon is second only to Sigmodon as perhaps the most emblematic in the large list of genera that encompass sigmodontine rodents. Nevertheless, the contents of Akodon have fluctuated greatly since Meyen first designated the genus in 1833. J. A. Allen (1905:70-71) was the first to highlight the necessity of dividing the genus, by that time comprised of more than 100 species, although he pointed that in cranial and dental characters there is great uniformity of structure, and no very evident lines of division. Thomas (1916i) attempted that task by recognizing seven genera, Zygodontomys, Akodon (with two subgenera, Akodon and Chalcomys), Thalpomys, Thaptomys, Bolomys, Chroeomys, and Abrothrix. Currently, five species groups are recognized within Akodon: 1) The Akodon aerosus group is comprised of A. aerosus, A. albiventer, A. affinis, A. mollis, A. orophilus, and A. torques.