is a genus of pocket mouse
. Like other members of their family
they are more closely related to pocket gophers
than to true mice
The silky pocket mice are small animals with soft pelage
, long tails, and small feet compared to other heteromyids. They have long claws which are used for digging burrows and sifting sandy substrates for seeds. They have also been found to steal seeds from kangaroo rats
They store these seeds in large hairy external cheek pouches
. They are nocturnal and are found in arid habitats. They are not true hibernators
, but will go into torpor
and stay in their burrows for extended periods of time.
Sometimes members of the genus Chaetodipus are placed in Perognathus.
- Duff, A. and A. Lawson. 2004. Mammals of the World A Checklist. New Haven, Yale University Press.
- Nowak, Ronald M. 1999. Walker's Mammals of the World, 6th edition. Johns Hopkins University Press, 1936 pp. ISBN 0-8018-5789-9