MAMMALIA. 471 



The cartilage of their nose is mobile. They dig caves for their 

 residence, where they pass the winter in a state of semi-torpidity, 

 and without taking any aliment. 



Ursus arctos. — The Brown Bear. — Plate VIII. fig. 1.— 

 Described, vol. 11. p. 319. 



Ursus maritimus.— The Polar Bear — Plate VIII. fig. 2. 

 — Described, vol. II. p 525. 



Genus i3. — Procyon. — Storr, 



Generic Character. — Incisory teeth |; canines \z\, large and 

 compressed ; grinders ^zl> total 4.2. The three first pointed, the 

 three posterior tubereulated ; body rather slight ; feet with 

 five toes J nails sharp ; muzzle pointed ; ears small ; tail long 

 and pointed, with six ventral teats. 



Procyon lotor. — The Racoon. — Plate VII. fig. 6.— De- 

 scribed, vol. II. p. 5o0. 



Ge7ius 44. — Nasua. — Storr. 



Incisory teeth f., canines J-}, grinders ^-^ ; total 40. Under 

 incisory teeth parallel ; the three posterior grinders with tuber- 

 cles ; feet with five toes, semi-palmate ; nails strong ; body 

 long, thin ; nose elongated and moveable ; tail long •, teats six, 

 ventral. 



Nasua fusca. — The Brown Coatl — Plate XIV*. fig. 1. — 

 Described, vol. II. p. 531. 



Genus 45. — Cercoleptes. — Cuvier. 



5-5* 



Generic Character. — Incisory teeth ^, canines J-J^ grinders 

 The two first incisors pointed in front, the three posterior 

 tubereulated; body thin-, head round; muzzle not produced; 

 tongue extensible ; ears oval ; feet large, membranous, five- 

 toed ; claws armed with strong crooked nails ; tail long and 

 prehensile, like that of the Sapajous. 



Cercoleptes caudivolvulus. — The Potto, or Yellow Macau- 

 co.— -Plate XIV*. fig. 2.— Fur silky, of a bright brownish- 

 yellow. About nineteen inches long. Inhabits South America. 



Genus 46. — Taws.— Geoffrajj. 



Generic Character. — Incisory teeth ^, canines }-}, grinders 

 ^l i total 38. The first grinder very small, second and third 



