Microtus arvalis
Animalia | Chordata | Mammalia | Rodentia | Cricetidae | Microtus
Microtus arvalis
Theria | Placentalia | Boreoeutheria | Euarchontoglires | Rodentia | Supramyomorpha | Myomorphi |  | Muroidea | Cricetidae | Arvicolinae | Microtini | Microtus | Microtus | arvalis