Fig. 1.—Microtus agrestis gregarius from Belgium. Image 547 in Microtus agrestis (Rodentia: Cricetidae)

Fig. 1.—Microtus agrestis gregarius from Belgium. Image 547 of the Mammal Images Library, American Society of Mammalogists. Photograph by M. Andera used with permission. ; Published as part of Mathias, Maria Da Luz, Hart, E. Blake, Ramalhinho, Maria Da Graca & Jaarola, Maarit, 2017, Microtus agrestis (Rodentia: Cricetidae), pp. 23-39 in Mammalian Species 49 (944) on page 23, DOI:10.1093/mspecies/sex003, http://zenodo.org/record/4683692