Mr. A. Murray on a new Species of Crocodile. 225 



The scuta on the nape of the neck are differently proportioned and 

 placed in all three ; and here the arrangement in C.frontatus bears 

 most affinity to that of C. leptorhynchus, instead of to that of C. 



Fiff. 8. 



Fig. 9. 



vulgaris. Fig. 10 shows this arrangement in C.frontatus ; fig. 11, 

 in C. vulgaris; and fig. 12, in C. leptorhynchus. In C.frontatus 



Fig. 10. 



and C. leptorhynchus the four large scuta are of a subquadrate form ; 

 m C. vulgaris they are irregularly subhexagonal. In the latter, not 

 only these but also the scuta generally are flat, with a longitudinal 

 raised hne or carina. In C. leptorhynchus, those in the neighbour- 



