Two new species of Oxymycterus (Rodentia) from Peru and Bolivia. American Museum novitates ; no. 2898

Abstract

"Two new species of Oxymycterus were recently discovered in the yungas of Peru and Bolivia. Both are much smaller than any species previously known. A description of the two species and a review of the characters of the oxymycterine group suggest certain relationships. Some shared characters suggest monophyly for a subgroup of the tribe Akodontini including the genera Oxymycterus, Podoxymys, Microxus, Lenoxus, Geoxus, and Blarinomys. However some of the shared characters may be results of convergence, and electrophoretic data suggest that at least Microxus does not belong with this group. Thus, the concept of an oxymycterine group remains unclear"--P. [1].