APPENDIX. 
dentala^'y in a fainter degree with the Horfe, and Ruminants ; 
and with regard to the line of diredlion of all the teeth, 
they are very like thofe of the Scalpris dentata. The fore 
teeth in the upper jaw agree with the Hog ; and thofe 
in the lower, in number, with the Scalpris dentata ; buc 
with regard to pofition, and probably ufe, with the Hog. 
The grinders would feem to be a mixture of Hog and 
Ruminants ; the enamel on their external and grind- 
ing furfaces, rather formed into feveral cutting edges, 
than points. There are fix incifors in the upper jaw, 
and only two in the lower ; but thefe two are fo placed 
as to oppofe thofe of the upper ; five grinders in each fide 
of each jaw, the moft anterior of which is fmall. The pro- 
portions of fome of the parts of this animal bear no analogy 
to what is common in moft others. The difproportions in 
the length between the fore legs and the hind are very 
confiderable ; alfo in their ftrength ; yet perhaps not more 
than in the Jerboa, This difproportion between the fore legs 
and the hind is principally in the more adult ; for in the very 
young, about the fize of a half grown rat, they are pretty 
This tribe includes the Rat, &c. 
well 
