QUADRUPEDS. 181 



grinders, the tubcrcukuses of M. F. CUVIEII, do not ex- 

 ceed two in number, and occupy the back-part of the jaw. 

 Their summits are flatter than the chewing grinders, and 

 they are usually of a smaller size. The larger they are, the 

 less carnivorous the species to which they belong *. The 

 teats are ventral. 



Toes separate, and the feet suited for walking. Hind 

 legs fully developed. 



PLANTIGRADA 



Walk on the soles of the feet. 



The toes are five in number -f- ; and the entire sole, 

 which is bare, rests on <the ground. There is no coecum. 

 They feed chiefly during the night ; and many of them be- 

 come torpid in winter. 



1. Middle incisors produced ; lateral ones and tusks short. 



a. Two small incisors between the produced ones in the 

 lower jaw. No external ear J. 



Five fingers. 



33. MYGALE. (CuviER.) Snout produced and flexible. 

 The Musk Rat, or Desman of Lapland (Sorex moschatus), 

 Gm.) is the type. 



34. SCALOPS. (CuviER ) Snout pointed. Sorex aqua- 

 ticus, LIN. 



* These descriptions will be better understood, by consulting Plate I. Fig 2., 

 where a delineation of the grinders of <the badger Is given, a is an inside 

 view of the teeth of the upper jaw. The tusk is followed by one small, and 

 two large tearing grinders. To these succeed one chewing grinder, followed 

 by a large bruiser. In the lower jaw 6, the bruiser is small ; the chewer 

 large, and there is an additional tearer. 



f There are likewise five fingers, unless in the genus Chrysochloris. 

 The toes are webbed, enabling the species to swim. In this character 

 they approach the pajmated division. 



