CEOCODI L US M 1':G A E 1 11 X US . 
2G5 
width than in C. porosus and is also less broadly rounded in front. There are five 
])remaxillary teeth, here represented by their bases or by the alveoli only. The first 
tooth is small and close to the middle line ; it is sei)arated by a deep fossa from the 
second, which is also small, and is situated immediately in front of the third, which is 
very large ; tlie fourth is still larger, the fifth much smaller, llehind 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 
Anterior portion of skull of Crocodilus megctrliinus, type specimen : A, from below ; B, from above. 
mx., maxilla ; na., nasal ; pmx., 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. paludosus, 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 premaxillm {pmx.) extend backwards 
2 M 
