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Long-tailed vole
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The long-tailed vole (''Microtus longicaudus''), in some areas known as the San Bernardino long-tailed vole, is a small vole found in western North America. They have short ears and a long tail. Their fur is gray brown with light gray underparts. They are around long with an tail and weigh about .
==Taxonomy==
The scientific name of the gray-tailed vole is ''Microtus longicaudus''. The generic name, ''Microtus'', derives from the Greek words ''μικρός'' meaning "small" + ''οὖς'' "ear". In Latin, the species name ''longicaudus'' derives from ''longus'' meaning "long" and ''cauda'' meaning "tail". The type specimen was a female collected by Vernon Orlando Bailey in the Black Hills at an altitude around near Custer, South Dakota, on July 19, 1887. The description was published by C. Hart Merriam in The American Naturalist the following year. The original scientific name was ''Arvicola longicaudus''. Certain features of the molars were noted, which distinguished the long-tailed vole from other voles known at the time. The species was formerly sometimes regarded as a member of the Old World genus ''Chionomys''.
The Coronation Island vole, once considered to be a separate species, is now believed to be a subspecies.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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