Facial portion of skull short; brain-case rounded; lower jaw shorter and higher than in Lemurs generally; great toe large and broad; on the inner side of both arms close to the wrist occurs a rough patch (extending down to the bare skin of the palm) corresponding to a gland beneath, {82}in the male, spine-like, while in the female hairy processes are present, together with a tuft of long hairs; external to this patch is a callous pad; mammæ opening on the shoulder; intestine large; cæcum small. YOUNG.--Reddish-yellow below. DISTRIBUTION.--The Grey Gentle-Lemur inhabits the eastern side of the Betsileo province of Madagascar. HABITS.--The "Bokombouli," as the natives name this animal, is the smallest of any of the True Lemurs. It is nocturnal, and lives, according to the Rev. G. A. Shaw, among the bamboos in the higher-level forests of the island. Its lower incisors are used as scrapers, and nearly all its teeth are serrated and very effective in cutting off the bamboo shoots, on which it feeds. To enable it to grasp smooth surfaces, such as the stems of the bamboo and other trees it frequents, it possesses a broad pad under each great toe. II. THE BROAD-NOSED GENTLE-LEMUR. HAPALEMUR SIMUS. _Hapalemur (Prolemur) simus_, J. E. Gray, Cat. Monkeys, Brit. Mus. App., p. 133 (1870); id. P. Z. S., 1870, p. 828, pl. lii., pp. 829, 830, figs. 1-4 (Skull). _Prolemur simus_, J. E. Gray, P. Z. S., 1872, p. 851. _Hapalemur simus_, Beddard, P. Z. S., 1884, p. 392; Jentink, Notes Leyd. Mus., vii., p. 33 (1885). CHARACTERS.--Nose broad and truncated; ears short, covered with long hair on the outside and along the margin inside. Very similar to _H. griseus_; head and upper back dark reddish-grey, faintly washed with rufous; sides of head, neck, and region round the eyes lighter; sides of nose and region between the eyes black; ears dirty grey; lower back, sides of {83}body, and outer surface of limbs sooty-grey, with here and there a wash of rufous; the patch on the end of the rump and upper part of the base of the tail uniform pale yellowish rust-colour; remainder of tail sooty-grey; from the chin to the chest yellowish-grey; under side of body and inner side of arms pale sooty-grey. No spines on the fore-arm above the wrist as in _H. griseus_. In the skull, the nose is broad, square, and truncated; the pre-maxillæ very small; the lower jaw weak and narrow in front. DISTRIBUTION.--Only known from Madagascar. HABITS.--The habits of the Broad-nosed Lemur are said to differ in no respect from those of the foregoing species. THE SPORTIVE-LEMURS. GENUS LEPIDOLEMUR. _Lepilemur_, Is. Geoffr., Cat. Méth. Primates, p. 75 (1851). _Lepidolemur_, Peters, M. B. Akad. Berlin, 1874, p. 690 (1874).