110 
MAMMALIA. 
rounded ; tongue furnished with spiny scales ; fore feet with four 
toes, and the rudiment of a thumb ; hind feet with five toes ; 
the nails on all the feet are strong; body covered with spines, 
intermixed with strong hair ; tail more or less long, sometimes 
prehensile. 
M. F. Cuvier has divided this genus into five distinct genera. 
'Hystrix cristata. — The Crested Porcupine. 
Plate XX. fig-, l. 
With very long spines on the back, which are annulated, black 
and white ; with a mane of long stiff hairs on the head and neck; 
tail short. Length of the body upwards of two feet; tail about 
three inches long. Inhabits Africa. 
Hystrix Cuandu. — The Brazilian Porcupine. 
Plate XX- fig- 2. 
The body is covered with short spines, annulated, black and 
white, destitute of any mixture of hair on the upper part; tail 
two-thirds the length of the body, tapering, and prehensile. 
Inhabits South America. 
This is the type of M. F. Cuvier’s genus Sincetliere. 
Genus 23. — Atherura — Cuvier. 
Generic Character. —Incisors |, no canines, grinders ; to¬ 
tal 20. Head strong, forehead depressed, nearly straight from 
the occiput to the extremity of the nose; ears short, rounded ; 
fore feet with four toes, and a rudimentary thumb ; hind feet 
with five toes; nails strong; tail one-third the length of the 
body, covered throughout with scales, disposed in rings, tip sur¬ 
mounted by a tuft of long flat bristles. 
Atherurafasciculata. — The Fasciculated Porcupine. 
Plate XXI. fig. 7. 
Upper parts of the body, outer sides of the limbs, head, neck, 
and face, dusky ; under parts, and insides of the limbs, grayish- 
white, with a darker band crossing the breast, in front of the 
