occipital region. It is partly owing to this that the occiput 

 is so high. 



The parietals are short, and very narrow between the tem- 

 poral orifices, behind these they expand considerably. The 

 orbits are large and of irregular shape. 



The malar is long and rather slender. 



Measurements. 



M. 



Length from occipital border to end of muzzle .455 



Breadth of cranium at postorbital angles -0035 



Breadth of cranium between temporal orifices -019 



Breadth of forehead between orbits .036 



Breadth of temporal orifices , -037 



Fore-and-aft diameter of the same . 038 



Fore-and-aft diameter of the orbits -073 



Length of face in advance of the orbits . 3055 



Breadth of face outside of the fifth maxillary tooth -176 



Breadth of muzzle as formed by premaxillaries (about) -114 



Breadth of muzzle at notch for canine -093 



Length of premaxillaries to notch -080 



Estimated length of entire alveolar border -283 



Breadth of articular surface of quadrate -059 



Vertical height of occiput 124 



Vertical diameter of foramen magnum -016 



Transverse diameter of foramen magnum 025 



Vertical diameter of condyle -023 



Transverse diameter of condyle -028 



Length from palatine foramen to end of pterygoid 120 



Length of palatals -1295 



Length of palatine foramen -142 



Greatest breadth of palatine foramen -051 



Length of bony palate from incisive foramen to posterior nares -350 



The mandible is long, rather shallow, but very thick. The 

 symphysis is very long, extending as far as the seventh tooth. 

 The chin is quite sharp, but becomes broad, as the rami diverge 

 quite rapidly. The alveolar border is rounded and compara- 

 tively straight, the median enlargement of the dentary is in 

 thickness rather than in height. The two rami diverge at an 

 angle which is more open than in the true crocodiles, and less 

 so than in the alligator. The mandibular foramen is smaller 

 than in the latter genus, but corresponds with it in position ; 

 it has its long diameter parallel with, and not oblique 

 to, the alveolus. The mandibular fossa is extremely large 



