VERTEBRATA. 333 
5. Insectivores are diminutive insect - eating animals, 
some, as the Shrew, being the smallest of Mammals. 
They have small, smooth brains, 
which, as in the preceding orders, 
leave uncovered the cerebellum 
and olfactory lobes. The molar 
teeth bristle with sharp, pointed 
cusps, and are associated with ca- “eta 
nines and incisors. They have a *%* 9%—Shrew Mouse (Sore). 
long muzzle, short legs, and clavicles. The feet are form- 
ed for walking or grasping, and are plantigrade, five-toed, 
and clawed. The Shrew, Hedgehog, and Mole are ex- 
amples. 
6. Cheiropters, or Bats, repeat the chief characters of 
the Insectivores; but some (as the Flying-fox) are fruit- 
eaters, and have corresponding modifications of the teeth. 
oe 
Fig. 329.—Bat (Vespertilio). 
They are distinguished by their very long fore - limbs, 
which are adapted for flight, the fingers being immense- 
ly lengthened, and united by a membranous web. The 
