

Photo hy J. W. McLeliarx 



CROCODILE, WELL ILLUSTRATING THE CHARACTER OF THE DENTITION 



The kiver tusk-like teeth ft into notches in (he upper jaiv, and are I'isible -when the mouth is closed. In the alligator these teeth ft into pits 

 in the upper jaiUy and are hidden from 'vieiv under the like conditions 



549 



