- Microtus, genus Microtus - voles of the northern hemisphere
--1 is a kind of mammal genus
--1 is a member of Cricetidae, family Cricetidae
--1 has members:meadow vole, meadow mouse, Microtus pennsylvaticus; water vole, Richardson vole, Microtus richardsoni; prairie vole, Microtus ochrogaster