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(Lepilemur mustelinus), a half-monkey of the genus Lepilemur (or sportive lemur). It has a short pointed snout, hairless ears, and fur that is reddish-brown above and gray below; it has no permanent upper incisors. The body is about 35 cm long, and the tail is about 25 cm. The weasel lemur inhabits the tropical forests of eastern Madagascar. It sleeps in the daytime and gathers in small groups at night; it is very active. The weasel lemur feeds on leaves.