The Skeleton is 
symphysis, is covered with numerous, small, deep 
pits, while along its inner side, parallel to the row 
of teeth, is a row of somewhat larger pits like those 
noted in the maxilla and premaxilla. Articulating 
with the mesial side of the dentary along the 
greater part of its length is a flat bone, the splenzal 
(Figs. 23 and 24, 19); between these two bones is a 
long cavity that makes the ramus hollow almost 
to the symphysis. A large foramen, not shown in 
any of the figures, leads through the splenial into 
this cavity. 
Articulating with the caudal end of the splenial 
and forming the anterior border, as seen from the 
mesial side, of the large external mandibular foramen 
(Fig. 23, 27) isasmall bone, the coronoid (Figs. 23 
and 24, 23, Fig. 21, 21); it articulates with the 
splenial anteriorly, with the supra-angular dorso- 
caudally, and with the angular ventrally. 
The supra-angular (Figs. 23 and 24, 21, Fig. 21, 
18)is an elongated bone that forms the dorsal border 
of the external mandibular foramen; it also forms 
the lateral edge of the articular surface for the 
quadrate. It articulates anteriorly with the splen- 
ial, the dentary, and the coronoid; and posteriorly 
with the angular and articular. 
The articular (Figs. 23 and 24, 22, Fig. 21, 19), 
which is scarcely visible in a lateral view, forms 
most of the surface for articulation with the quad- 
rate, and sends back the large process so charac- 
teristic of the crocodilian skull. On the dorsal side 
