| Like other pocket gophers, Merriam's has very small eyes and ears and almost no neck. It does most of its digging with its strong forelegs and claws, but uses its huge front teeth to dislodge rocks or gnaw through roots that are in its way. Its lips close behind these teeth, so no dirt enters its mouth when it is burrowing. Pocket gophers plug the entrances of their burrows with dirt, which helps keep the humidity and temperature at a more or less constant level. They patrol their tunnels to repair damage and close up openings. Pocket gophers in the genus Cratogeomys are found from sea level to high mountains.
Head and Body: 140-260 mm; Tail: 60-125 mm
Thomas, O., 1893. Annals and Magazine of Natural History, ser. 6, 12:271.
Mammal Species of the World (opens in a new window).