i 5 8 



ANIMAL LIFE OF THE BRITISH ISLES. 



of light reflected from the surroundings, causing colour changes 

 much after the manner of those of the Chameleon, though less 

 marked. 



The Frog's fore limbs are very short compared with the hind 

 pair, and the four moderate-sized fingers are not connected 

 by webs ; whereas, the hind limbs have their several bones 



Skeleton of Frog 1 . 



lengthened, and the abnormal lengthening of those of the 

 ankle gives the legs the appearance of having a supplementary 

 joint. The leg is one and a half times the length of head and 

 body. The foot has five long toes connected for half their 

 length by a "web" of skin which constitutes a very efficient 

 paddle when the Frog is in the water. Of these hind toes the 

 fourth is considerably longer than the long third and fifth. 

 The Frog's head is as broad as it is long, the muzzle rounded, 



