50 African Zoology. 



Cheiromys Madagascariensis, Desm. (The Aye Aye.) Head, 

 spaces round eyes, the upper parts of body, and the extremities, 

 ferruginous brown ; the outer sides of the latter and back with 

 a blackish tint ; the. sides of the head, the neck, the lower jaw, 

 and belly, greyish; tail entirely black. Besides the more re- 

 gular covering there are some greyish coloured woolly hairs of 

 about two or three inches in length, scattered over the whole 

 body. Length from nose to base of tail from fourteen to eigh- 

 teen inches : tail about the same length. 



Inhabits Madagascar. 



Lemur psylodactylus, Schreb. Supp. Shaw, Zoo!. 1. 109. 

 Sciurus Madagascariensis, Gm. Sijs. Nat. Aye Aye, Sonnerat, 

 Fuy. aux Ind. 11. 142. Aye Aye Squirrel, Pennant 2. 142. 



Genus Cheirogaleus. Geoffroy. 



Incisors ^, canines { ], molars 5 i, — 36. Upper jaiu, — Incisors 

 in pairs much apart, the foremost of each pair largest; canines 

 conical and curved, first molar subcorneal compressed and like 

 the canines, the second three-sided and pointed, the third with 

 two tubercles, one ok the cuter and one on the inner side, the 

 fourth, fifth, and sixth lui.th three tubercles, tivo on the outer edye 

 and one on the inner. Undsr jam, — Incisors nearly horizontal, 

 the outermost of each side largest ; canines somewhat conical, 

 inclined forwards, and slightly curved ; fir st molar inclined to 

 y conical with an obtuse point, the second, third, fourth^ and fifth 

 each luith a blunt tubercle towards the anterior edge and a deep 

 excavation behind. Head rounded, face short and covered with 

 fur; eyes approaching; anterior extremities shorter than the 

 posterior; nail of index finger onfall the hands pointed, elevated 

 and slightly elongated; nails of the other fingers flat, pointed, and 

 in contact with the soft parts belotu ; ears membraneous, pro- 

 jecting beyond the far, and ivith a thin sprinkling of short hair ; 

 tail about the length of the body, cylindrical and slightly flat- 

 tened beneath.* 



Cheirogaleus typicus. — Upper parts of head, back of neck, 

 space between shoulders and anterior part of back, pale reddish 

 brown, more or less grizzled with silvery grey ; rest of back, 

 sides, outer parts of extremities, and tail, ashy brown ; the 

 colour darkest along the middle of the back, angles of month, 

 throat, breast, belly, inner sides of extremities, and an oblique 

 short stripe on each side of neck, white or ashy-wbite ; sides of 

 face, and space around eyes black Length from nose to base 

 of tail ten inches and a half, length of tail nine inches. 



Inhabits Madagascar. 



* Mr. Verreaux has lately been singularly fortunate in procuring a fine 

 specimen of tiie Cheirogaleus Medius of Geoffroy, and to him I am in- 

 debted for the meang of indicating the various characters of the Genus. 



