FIGURE 4 in An introduction to the systematics of Akodon orophilus Osgood, 1913 (Rodentia: Cricetidae) with the description of a new species

FIGURE 4. Selected morphological traits of the Peruvian Akodon aerosus group members. (A: A. surdus, MUSM 36600; B: A. aerosus, MUSM 8981; C: A. torques, MUSM 9045; D: A. orophilus, MUSM 37019; E: A. mollis, MUSM 23645). First row: rostrum in dorsal view (note the posterior borders of nasals and the configuration of premaxilar and nasal sutures); second row: dorsal view of the antorbital bridge region (note the size of the lacrimals); third row: zygomatic plate in ventrolateral view (note the anterior border and the thickness of the malar process of maxillary); fourth row: mesopterygoid region (note the size of foramen oval and the shape of parapterygoid fossa); fifth row: ascending ramus of the mandible in labial view (note size of the capsular projection).Published as part of Jiménez, Carlos F., Pacheco, Víctor & Vivas, Dan, 2013, An introduction to the systematics of Akodon orophilus Osgood, 1913 (Rodentia: Cricetidae) with the description of a new species, pp. 223-242 in Zootaxa 3669 (3) on page 231, DOI: 10.11646/zootaxa.3669.3.2, http://zenodo.org/record/28389