MAMMALIA. 
97 
Phascolomys wombat. —The Wombat. 
Plate XIX. fig. 3. 
Fur uniform grayish; eyes small. Size of a badger. In¬ 
habits New Holland. 
ORDER VI.—RODENTIA. — Cuvier. 
Glires. — Linnceus. 
Two large incisors in each jaw, separated from the grinders 
by a vacant space; destitute of canine teeth ; grinders in some 
of the genera with flat or ridged crowns, in others with blunt 
tubercles. Under jaw articulated by a longitudinal condyle; 
orbits not separated from the temporal fossse, having a small 
zygomatic arch; toes variable; nails unguiculated; stomach 
simple; intestines long; csecum large; mamnue varying in 
number. Feed generally on vegetables, but the species with 
tuberculated grinders are nearly omnivorous. Their habits are 
various, but generally timid. Inhabit the Continents and larger 
Islands. 
Section I.—With perfect clavicles. 
Genus 1. —Castor.— Linnceus. 
Generic Character .—Incisory teeth |, no canines, grinders 
|; total 20. Incisory teeth very strong, with a flat anterior 
surface, and the posterior angular. The grinders have a fold, 
or ridge of enamel, on the internal edge, and three similar folds 
on the outer edge of the upper teeth, which are inverted in the 
lower ones ; eyes small; ears short and round; each of the feet 
have five toes; the anterior short and close, and the posterior 
longer and palmated; tail large, flat, and scaly ; near the root 
of the tail in the male, is a pouch filled with an unctuous secre¬ 
tion. 
H 
