Ilistoire Nalurelle des Mammiferes. 525 



are all of a more or less deep gray, mingled with yellowish ; and 

 all have the extremity of the muzzle, the circumference of the 

 eyes, and the upper part of the face, white ; the lower jaw, the 

 sides of the muzzle, and the dorsal line black ; the body spotted 

 with black, excepting its inferior parts, the head, the front of the 

 ears, and the legs : and the tail is ringed. But the longitudinal 

 bands of the upper part of the neck are more regular and uniform 

 in the Genet of Senegal than in the others, and are much less in- 

 terrupted in that of the Barbary than in the Cape species, in 

 which they are in fact composed of a series of elongated spots. 

 From the back io the bottom of the flanks there are in the Genet 

 of Senegal only four rows of spots, in that of Barbary there are 

 five, and in that of tho Cape at least six. In the first the num- 

 ber of rings on the tail is at least ten, and this is terminated by 

 white hairs ; in the second there are only eight rings, and the 

 terminal hairs are black ; in the third the terminal hairs are also 

 black, but the number of rings is ten. In the colouring of the hinder 

 legs they are also distinguished. On the outer part of these mem- 

 bers the Genet of Senegal exhibits a black spot which terminates 

 in a distinct manner above the tarsus. In the Genet of Barbarjr 

 this spot is much less distinct, and descends on the tarsus, em- 

 bracing both sides of the leg ; while in the Cape species the leg^ 

 appears to be entirely black. 



The Agouti, Cavia Jguti L., is stated by M. F. Cuvier to com- 

 prehend two species which have hitherto been confounded to- 

 gether. To one of these figured in an earlier number of his work, 

 he gives the trivial name of aurata^ distinguishing the one des- 

 cribed in his present livraison by the denomination of cristafa. 

 They are readily to be distinguished at the first glance by the rich 

 and brilliant colours of the former, which present a striking con- 

 trast to the generally dull appearance of the latter. On further 

 examination they are found to exhibit other differences. In the 

 crested Agouti the upper part of the face is much more strongly 

 arched than in the other species ; its ears are entirely flesh-co- 

 loured, and its feet tanned ; the hinder parts of its body are 

 deep brown with a few yellow points ; and its cheeks, neck and 

 shoulders, are black, the portion of the body between the 



