CROCODILTDjE. 



Family I. CROCODILID^. 



Nares anterior ; choanse opening far back between the pterygoids, 

 which, like the palatines and maxillaries, are produced into osseous 

 plates joining on the median line of the. palate; orbit communi- 

 cating with the infratemporal fossa. Vertebrae proccelous ; ribs 

 with unciuate processes. No clavicles. Pubis excluded from 

 acetabulum. Manus with five well-developed digits, pes with four. 

 A dorsal armour of bony scutes. Ears with movable opercles. 



Fig. 

 A. Side view. 



atig. Angular. 

 dr. Articular. 

 bo. Basioccipital. 

 d. Dentary. 

 co. Exoccipital. 

 /. Frontal. 

 j. Jugal. 

 I Lachrymal. 



1. Skull of Crocodilus pahistris. 



B. Upper view. 

 m. Maxillary. 

 n. Nasal. 

 p. Parietal. 

 pi. Palatine. 

 pm. Prsemaxillary. 

 prf. Procfrontal. 

 pt. Pterygoid. 



C. Lower view. 

 ptf. Postfrontal. 

 q. Quadrate. 

 qj. Quadratojugal. 

 s.ang. Supra-angular. 

 so. Supraoccipital. 

 sq. Squamosal. 

 tp. Transpalatine. 



