Genus
Thomomys (Western pocket gophers)
Thomomys bottae. Photo: (c) Mourad Gabriel, some rights reserved (CC BY-NC-ND)
The smooth-toothed pocket gophers, genus Thomomys, are so called because they are among the only pocket gophers without grooves on their incisors. They are also called the western pocket gophers because they are distributed in western North America. They are considered distinct enough from other pocket gophers to be recognized as a separate subfamily or tribe.
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