1) Genus arvicola 2) Mammal genus 
Arvicola scherman The water voles are large voles in the genus Arvicola. They are found in both aquatic and dry habitat through Europe and much of northern Asia. A water vole found in Western North America was historically considered a member of this genus, but has been shown to be more closely related to members of the genus Microtus (Conroy and ...
Arvicola is a genus of rodent animals of the suborder Muridse or Mice. Arvicola amphibia is the water-vole (or water-rat), and Arvicola agrestis is the field-vole or short-tailed field-mouse.
[n] - in some classifications considered synonymous with Microtus
genus Arvicola noun in some classifications considered synonymous with Microtus