1862.] 



OF CROCODILK FROM WEST AFRICA. 



215 



which respectively represent the profiles of the head of C. vidgai'is 

 and C. lej)torhynchus.) The disposition of the scuta or plates along 



Fig. 7. 



Fia-. 8. 



Fig. 9. 



the nose or muzzle is different in each species. Fig. 7 shows them 

 in Cfrontatus; fig. 8, in C. vulgaris; and fig. 9, in C. leptorhyn- 



