66 ALLEN'S NATURALIST'S LIBRARY. 



Fox-like head, and an elongate and tapering face, shelving on 

 each side of the nose. A long fringe of hair surrounds their 

 chin and cheeks. They have all large and tufted ears, and 

 large eyes, with superciliary ridges rising higher than the fore- 

 head. Their tail is always half as long as the body at least. 

 The fore-limbs are somewhat shorter than the hind-limbs, 

 and both the wrist and ankles are haired. The ankle is not 

 elongated, nor is the great toe as large as in the next family 

 the Indrisince. On the outside of the palm of the hand and 

 under the base of the fingers are situated fleshy pads, giving 

 them greater grasping power. The True Lemurs have only one 

 pair of mammae, which are situated on the breast. 



In the skull the facial region is much elongated, its measure- 

 ment from the anterior margin of the orbit forward being 

 greater than the longitudinal diameter of the orbit, and the 

 space between the eye-sockets is narrow and depressed. The 

 bony palate is short, extending back only to the posterior 

 end of the median molar. The posterior portion of the ear- 

 capsules (the mastoidal and squamosal regions) is not in- 

 flated a character which separates this genus from Galago. 

 The pre-maxillary bones are large and protrude in front, if the 

 skull be viewed from the side. The angle of the lower jaw is 

 not produced downwards and backwards. In some species a 

 large maxillary sinus projects into the anterior part of the orbit ; 

 in some also the foramen rotundum does not coalesce with the 

 sphenoidal fissure (see page n), but has a distinct opening. 

 The teeth are of the normal number, namely thirty-six. In 

 the upper jaw the incisors are small, sub-equal, and situated 

 anteriorly to the canines and are not in contact with each 

 other, or with the latter. The canines are very large, tusk-like, 

 and set in an excavated notch on the jaw. All the pre-molars 



