Microtus mogollonensis
| Mogollon Vole
(Microtus mogollonensis) | |
|---|---|
| Range | |
 | |
| Taxonomic classification | |
| Order: | Rodentia |
| Suborder: | Supramyomorpha |
| Infraorder: | Myomorphi |
| Superfamily: | Muroidea |
| Family: | Cricetidae |
| Subfamily: | Arvicolinae |
| Tribe: | Microtini |
| Genus: | Microtus |
| Subgenus: | Pitymys |
| Binomial details | |
| Microtus mogollonensis (Mearns, 1890) | |
Description
From Armstrong et al. (2010): "This is a small short-tailed vole with the tail less than 30 percent of the length of the head and body, usually less than 35 mm. The dorsal pelage is typically dark brown with the venter a buffy to ochraceous gray. The length of the hindfoot is usually less than 20 mm."
External measurements
Length measurements are in millimeters (mm) and weight measurements are in grams (g), unless stated otherwise. If available, the sample size (n=) is provided. If a range is not provided and n= is not given, then the listed measurement represents an average.
| Part of range | Reference | Total length | Tail length | Hindfoot length | Ear length | Mass |
|---|---|---|---|---|---|---|
| Arizona (central Mogollon Plateau) | Hoffmeister (1986) | 122–147 (n=16) | 20–30 (n=16) | 16–19 (n=16) | ||
| Arizona (Escudilla Mtn.) | Hoffmeister (1986) | 122–153 (n=45) | 22–33 (n=45) | 17–20 (n=45) | ||
| Arizona (Hualapai Mtns.) | Hoffmeister (1986) | 137.2 (n=5) | 30.2 (n=5) | 19.6 (n=5) | ||
| Arizona (south rim Grand Canyon) | Hoffmeister (1986) | 123–140 (n=30) | 22–31 (n=30) | 16–20 (n=30) | ||
| Arizona (vicinity of Flagstaff, Coconino Co.) | Hoffmeister (1986) | 115–149 (n=29) | 20–32 (n=29) | 16–19 (n=29) | ||
| Arizona (vicinity of Williams, Coconino Co.) | Hoffmeister (1986) | 120–145 (n=40) | 20–30 (n=40) | 17–20 (n=40) | ||
| Colorado | Armstrong et al. (2010) | 122–154 | 20–34 | 16–21 | 13–16 | 28–32 |
| Texas | Schmidly & Bradley (2016) | 141 | 32 | 21 | 29–48 |
Skull
From Armstrong et al. (2010): "The skull is short and broad with the zygomatic breadth usually greater than 60 percent of the condylobasal length. The last upper molar has 5 dentine lakes, similar to Microtus pennsylvanicus [and presumably M. drummondii, which was split from M. pennsylvanicus in 2020 by Jackson & Cook] and M. montanus. Unlike M. pennsylvanicus, the second upper molar has only 4 dentine lakes with no posterior accessory loop. M. mogollonensis differs from M. montanus in having incisive foramina broad and rounded posteriorly rather than narrow or abruptly constricted posteriorly. The jugal bone of the zygomatic arch is expanded and the posterior margin of the palate is notched or grooved."
Similar species
From Armstrong et al. (2010): "These animals can be easily confused with Phenacomys intermedius or M. montanus unless the skull is examined carefully."
References
Armstrong DM, Fitzgerald JP, Meaney CA. 2010. Mammals of Colorado, Second Edition. Denver (CO, USA): University Press of Colorado.
Hoffmeister DF. 1986. Mammals of Arizona. Tucson (AZ, USA): University of Arizona Press.
Jackson DJ, Cook JA. 2020. A precarious future for distinctive peripheral populations of meadow voles (Microtus pennsylvanicus). Journal of Mammalogy 101(1):36-51.
Mearns EA. 1890-02-21. Description of supposed new species and subspecies of mammals, from Arizona. Bulletin of the American Museum of Natural History 2(20):277-307.
Schmidly DJ, Bradley RD. 2016. The mammals of Texas. Austin (TX, USA): University of Texas Press.