Microtus pennsylvanicus
MICROTUS | MICROTUS PENNSYLVANICUS
Microtus pennsylvanicus
Theria | Placentalia | Boreoeutheria | Euarchontoglires | Rodentia | Supramyomorpha | Myomorphi |  | Muroidea | Cricetidae | Arvicolinae | Microtini | Microtus | Mynomes | pennsylvanicus