Skull large and massive; the brain-case small and inflated; facial region long, differing in this character from _L. ruficaudatus_; orbits very large, thus differing from the three remaining species of the larger group (A); the process of the maxilla intervening between the nasal and lachrymal bones; molar teeth large. DISTRIBUTION.--This species occurs in the north-east of Madagascar, and, according to Grandidier, in the north-western corner of the island. HABITS.--The "Fitili-ki," as the natives have named this animal, is found in the forests in small companies. It is nocturnal in its habits, feeding on leaves and fruits. II. THE RED-TAILED SPORTIVE-LEMUR. LEPIDOLEMUR RUFICAUDATUS. _Lepilemur ruficaudatus_, Grandidier, Rev. et. Mag. de Zool., 1867, p. 256. {87}_Lepilemur pallidicauda_, Gray, P. Z. S., 1872, p. 850. _Lepilemur mustelinus_ (nec. Is. Geoffr.), Schl., Mus. P. B., vii., p. 317 (in part). CHARACTERS.--Smaller than the last species; head much broader than it is long; snout short and conical; ears ovate, exposed, short-haired; tail long, thicker at the end, and covered with softer and longer hairs. Fur pale or reddish-grey; head dark brown; the shoulders and outer side of the arms grey, washed with brown; chin, breast, and inner side of limbs and under side of body whitish; upper side of the base of the tail rather dark brown, this colour extending further down in the tail of the female; rest of the tail uniform pale brownish or greyish-red. Skull very broad compared with its length, more massive, and showing a shorter muzzle than in _L. mustelinus_; orbits smaller than in any of the other species in Group A. DISTRIBUTION.--South-western Madagascar. III. MILNE-EDWARDS' SPORTIVE-LEMUR. LEPIDOLEMUR EDWARDSI. _Lepidolemur edwardsi_, Forsyth Major.[5] CHARACTERS.--"Similar to _L. ruficaudatus_; upper part of head grey; ears membranaceous, but encircled on the inner and posterior side by an incomplete belt of dark brown colour, which distinguishes the species from _L. ruficaudatus_; shoulders and outer side of the fore-limbs reddish-brown. Back greyish-brown, lighter on the outer side of the hind-limbs; an uninterrupted dark dorsal streak from the middle of the back to the centre of {88}the forehead is very conspicuous between the shoulders. Breast, inner sides of the fore- and hind-limbs, and lower surface of the body greyish-white. "The skull long and narrow; molars and pre-molars large, especially transversely; orbits small, yet larger than in _L. ruficaudatus_; the mastoidal portion of the ear-capsules and squamosal region of the skull conspicuously inflated. Bony palate more elongate than in _L. mustelinus_; par-occipital process present." DISTRIBUTION.--Betsako, north-west of Madagascar. IV. THE SMALL-TOOTHED SPORTIVE-LEMUR. LEPIDOLEMUR MICRODON. _Lepidolemur microdon_, Forsyth Major.