- pocket mouse - any of various small nocturnal burrowing desert rodents with cheek pouches and long hind legs and tail
--1 is a kind of pocket rat
--1 is a member of Heteromyidae, family Heteromyidae
--1 has particulars:silky pocket mouse, Perognathus flavus; plains pocket mouse, Perognathus flavescens; hispid pocket mouse, Perognathus hispidus; Mexican pocket mouse, Liomys irroratus