34 



ZOOLOGY. 



u, 0'), the metacarpels (mc), and the phalanges (except 

 in the case of the thumb, which possesses a sharp claw 

 (p)) are of great length ; and between the long fingers, 

 between the fore and hind limbs, and, last o£ all. 



between the two hind limbs there is an elastic mem- 

 brane, serving both for flight and touch. Sight ill 

 developed, since the bat is a nocturnal animal; a 



