Characters.—Head round; muzzle pointed; eyes very large; ears also very large, long, nude, and membranaceous; fingers and toes very long, slender, and fine. Tail thick, round, and longer than the body; ankle-bones elongated. Length of body, 8¼ inches; tail, 10 inches. Head brownish-grey; a narrow black ring round the eyes; a streak from the forehead down the nose whitish; back greyish-brown, washed (sometimes markedly) with rufous on the upper back, fading out towards the root of the tail; the latter black or greyish-black. Outside of arms and legs washed with rufous, sometimes with a white spot on the shoulder-joint and over the groin; posterior aspect of legs sooty-black; cheeks, sides of nose, entire under surface, and inner side of limbs creamy-white with a rufous-washed bar across the chest. Muzzle shorter than the diameter of eye-socket. Incisors seen from the side, more or less hidden by the canines; anterior upper pre-molar very canine-like, relatively much produced longitudinally, with an interval between the anterior and median pre-molars; posterior upper pre-molar four-cusped, and with an intermediate cusp on the oblique ridge; posterior upper molar almost equal in size to the median one.
Distribution.—This species has been recorded from the Gaboon, in West Africa, and from Fernando Po, whence it was first obtained by Captain Allen, R.N., in 1837.
Habits.—Although little or nothing has been recorded of its habits, it is unlikely that they differ much from those of the species already known.
IV. DEMIDOFF'S GALAGO. GALAGO DEMIDOFFI.
Galago demidoffi, Fischer, Act. Soc. des Nat. Mosc., i., p. 24, f. 1 (1806); Peters, P. Z. S., 1863, p. 380, pl. xxxv.; Mivart, P. Z. S., 1864, p. 648.
Otolicnus peli, Temm., Esquis. Zool. Mamm., p. 42 (1853).
Otolicnus demidoffi, Wagner in Schreb., Säugeth. Suppl., v., p. 160 (1855).
Hemigalago demidoffi, Dahlb., Stud. Zool., p. 230 (1856).
Galago murinus, Murray, Edinb. Phil. Journ. (n.s.), x., pp. 243-251, pl. 11 (1859).
Characters.—Head round; body short and thick; snout very narrow; long bristles on the face, corners of the eyes, and sides of the nose; ears long, oval, membranaceous, transparent, the inner margin haired; eyes large and projecting; nose elongated in front, and projecting above the upper lip; fingers slender; wrist, ankle, hands and feet short-haired; digits naked; tail longer than body, round and slender. Length, 5 inches; tail, 8 inches.