The reddish-gray mouse lemur (Microcebus griseorufus), also known as the gray-brown mouse lemur or rufous-gray mouse lemur, is a small, solitary-but-social, nocturnal and omnivorous primate. Like the other lemur species, the reddish-grey mouse lemur is endemic to Madagascar. The habitats of the reddish-gray mouse lemur include the spiny forests and gallery forests,as well as the shrublands or the dry forests near the Western and Southwestern coasts of Madagascar. The size of the reddish-gray brown mouse lemur ranges from 25 to 28 cm, while their mass can range between 46 and 79 gr.