MAMMALIA. 669 



of eyes, with lip entire. Feet semi-palmate, the anterior tetradacty- 

 lous, the posterior tridactylous. Claws broad, ungular. Body 

 covered with hair thinly disposed, setaceous, long. Tail none. 



Sp. Hydrochcerus capybara DESM., Su$ ffydrochceris L., BUFF. xn. PI. 49, 

 GUERIN Iconogr., Mammif. PI. 31, fig. 3. This animal is the largest of 

 the order, and attains a length of 3 to 4 feet. The capybara lives on the 

 banks of rivers in Brasil, Surinam and throughout nearly the whole of 

 South America. 



Ccelogenys F. Cuv., ILLIG. Molar teeth complex or semi-com- 

 plex. Lip cloven. Fore feet with four toes and unguiculate 

 hallucar wart ; hind feet tridactylous. Tail very short. (A fold of 

 skin under the zygoma large and tumid. Internal buccal pouches.) 



Coinp. F. CDVIEE Du genre Paca, Ccdogenys, Ann. du Mus. x. 1807, 

 pp. 203209, PI. ix. A, figs. i6. 



Sp. Ccelogenys siibnigra and Coil, fulva, probably only varieties of the same 

 species, Mus Paca L. (Cavia Paca auctor.) BUFF. x. PI. 43, Suppl. in. 

 PI. 33, GUER. Iconogr., Mammif. PI. 32, fig. 3. This animal attains a 

 length of nearly two feet ; colour dark brown or reddish with white spots, 

 placed on the sides of the body in four or five longitudinal rows. The 

 flesh, which is very fat, is eaten. The buccal pouches were first described 

 by GEOFFROT ST.-HILAIRE Ann. du Mus. iv. 1804, pp. 99101. 



Dasypr octet, ILLIG., Chloromys F. Cuv. Molar teeth complex. 

 Lip cloven. Fore feet with four toes and hallucar wart; hinder 

 tridactylous. Tail a short, naked tubercle. Hair towards the 

 hind part of back and over the hips elongate. 



Sp. Dasyprocta Aguti DESM., Mus Aguti L., BUFF. vin. PI. 50, Cuv. Menag. 

 du Mus. i. pp. 271284; Dasypr. Acuschy DESM., Cavia AcuscJiy BUFF. 

 Suppl. in. PI. 36, GUER. Iconogr., Mammif. PI. 32, fig. 2 (with tail longer 

 than in the preceding). Both species from the North of Brasil, from 

 Guiana and Surinam ; commonly pursued as game in Brasil ; whilst feed- 

 ing they sit on the hind feet, holding the food with their fore feet. 



4 4 

 Family XXIV. Aculeata. Molars in adults - -^ , complex, 



with undulate striae of enamel in the crown. Incisors large, mostly 

 coloured anteriorly, not grooved. Body covered with rigid, acumi- 

 nate spines. Fore feet tetradactylous, with pollex very small, 

 resembling a wart, hind feet pentadactylous or tetradactylous. 



This family consists of the porcupines, the genus Hystrix L. 

 Species belonging to it are found both in the Old and the New 



