Wings of Bats. 



{,1} The wing- of a Fruit Bat, showing the fingers connected 

 by the membrane of the "ing. The thumb, which is erect, 

 is provided with a claw, and is used in cHmbing and grasping 

 twigs. The index finger, ne.xt to the thumb, is also provided 

 with a claw, which is ahvavs absent in Insectivorous Bats. 



(/') Insecti\'orous Bats possess a thumb «ith a claw on the end 

 of it, as seen in this illustration. The index or forefinger, 

 however, in these bats is //iV tipped with a claw. On the 

 contrary, the South African fruit-eating bats all possess the 

 thumb, and a forefinger iciiiiiiiatid by a claw. 



(i) Thumb ; (2) inc^ex or forefinger ; (3) second finger ; (4) third 

 finger; {5) fourth finger. 



