The Ring-tailed lemur has a slender frame and narrow face, fox-like muzzle. Its long, bushy tail is ringed in alternating black and white transverse bands, numbering 12 or 13 white rings and 13 or 14 black rings, and always ending in a black tip. The total number of rings nearly matches the approximate number of caudal vertebrae (~25). Its tail is longer than its body and is not prehensile. Instead, it is only used for balance, communication, and group cohesion. The pelage (fur) is so dense that it can clog electric clippers. The ventral (chest) coat and throat are white or cream. The dorsal (back) coat varies from gray to rosy-brown, sometimes with a brown pygal patch around the tail region, where the fur grades to pale gray or grayish brown. The dorsal coloration is slightly darker around the neck and crown. The hair on the throat, cheeks, and ears is white or off-white and also less dense, allowing the dark skin underneath to show through. The muzzle is dark grayish and the nose is black, and the eyes are encompassed by black triangular patches. Facial vibrissae (whiskers) are developed and found above the lips (mystacal), on the cheeks (genal), and on the eyebrow (superciliary). Vibrissae are also found slightly above the wrist on the underside of the forearm. The ears are relatively large compared to other lemurs and are covered in hair, which has only small tufts if any. Although slight pattern variations in the facial region may be seen between individuals, there are no obvious differences between the sexes.
The natural range of this species occupies the south and southwest Madagascar, where scattered populations of Ring-tailed lemurs are found from Tolagnaro in the southeast to Morondava on the west coast and Ambalavao inland. Additionally, a single, isolated population inhabits the Andringitra Massif on the southeastern plateau of the island. Preferred types of habitat are spiny forests, lowland gallery forests, dry scrubs, dry deciduous forests, and, sometimes, rock canyons. Meanwhile, the population in the above-mentioned Andringitra Massif lives at higher elevations, among bare rocks, low bushes, and subalpine vegetation. This area is known to have one of the harshest climates on the island.
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