CEOCODILLTS MEGAKHINUS. 



265 



width than in C. porosus and is also less broadly rounded in front. There are five 

 premaxillary teeth, here represented by their bases or by the alveoli only. The first 

 tooth is small and close to the middle line ; it is separated by a deep fossa from the 

 second, which is also small, and is situated immediately in front of the third, which is 

 very large ; the fourth is still larger, the fifth much smaller. Behind this last is a deep 

 and narrow notch for the fourth lower tooth, and behind this again are three sockets set 

 close together and increasing rapidly in size from before backwards. The jaw behind this 



Texfc-iis. 85. 



A.i 



Anterior portion of skull of Crocodilus megarJiinus, type specimen : A, from below ; B, from above. 

 mx., maxilla ; na., nasal ; ;pma:., premaxilla ; 1-5, premaxillary teeth. | nat. size. 



point is imperfect. In the premaxillary region the palate is gently concave from side to, 

 side ; the maxillo-premaxillary suture is obscure. Seen from above the comparatively 

 considerable elongation of the premaxillary region is very noticeable and distinguishes 

 this species from C. porosus, C. jaaludosus, and from C. niloticus of similar size. The 

 nasal opening is large and oval in form ; the pointed ends of the nasals {na.) project 

 into it posteriorly. The facial . processes of the premaxillse {pmx.) extend backwards 



2m 



