Arvicolinae is a subfamily of rodents commonly known as voles or field mice. The scientific name of this subfamily is derived from the Greek word 'arvicola,' which means 'small rodent.' This subfamily includes several species with distinct characteristics that are found in various habitats across the globe. Some of the synonyms for Arvicolinae include microtinae, lemmings, and muskrats. Microtinae is a name used for voles, muskrats, and lemmings that belong to the subfamily Arvicolinae. Lemmings are a type of Arvicolinae that are characterized by their migratory behavior and live in Arctic tundra regions. Muskrats are semi-aquatic rodents that are found in North America.