The ash-grey mouse (Pseudomys albocinereus) is a species of rodent in the family Muridae.It is found only in Australia. The preferred habitat of the mouse are areas of low heathland or scrubland with sandy soils.These mice are well adapted to the desert environment; they are nocturnal and fossorial, have plugged entrances to burrows and huddle in groups to decrease evaporation rates.Females give birth to litters of between two and six young after a gestation period of between 37 and 38 days.