Red-fronted lemurs range from 2.18 to 2.25 kg in mass, and have a mean body length of 378 mm and a tail length of 499 to 508 mm. Red-fronted lemurs are found at altitudes of 275 to 1670 m above sea level. There are lower densities of this species in edge habitats, (the boundaries of two different habitats, such as a forest and a field), due to the reduced heights and diameters of trees in these areas. Red-fronted lemurs reside in primary and secondary rainforest and the interiors of dry deciduous forest. There is also a separate population south of Pic d’Ivohibe. In the west, red-fronted lemurs are found south of the Fiherenana River near Toliara, and north up to the Betsiboka River. There is another population on the south-eastern slopes of Andringitra Massif, which shares a 60 km wide hybridization zone with Eulemur cinereiceps around the Iantara River. The eastern population is bounded in the north by the Onive and Mangoro Rivers and in the south by the slopes of Andringitra.

Red-fronted lemurs, Eulemur rufus are found only on the island of Madagascar and are located in two distinct populations on the eastern and western portions of the island.

Red rumped lemur