Hatchkr : Lrii i.K Known Fossil Vek tkhrates. 139 



the anterior, median, and posterior cross-crests. Premolars .r, ^, j, 

 are all submolariform, regularly increasing in their apj)roximation to 

 the true molar pattern from V..,^ to 1\ ^. In each of these teeth the 

 anterior and posterior cross-crests are not as fully developed as are the 

 same elements in the lower true molar series. The inferior molars 

 exhibit no distinctive characters. 



Measurements. 



Fully Adult Skui.l, (No. 96). 



Length in straight line from point of nasals to emargina- 



tion of occipital crest .... 496 mm. 



Height of occiput above lower border of occipital con- 

 dyles . .155 mm. 



Depth of incision of anterior nares 140 mm. 



Greatest length of premaxillaries no mm. 



Lower Jaw of Young Animal, ^LJ, not Fully Erupted. 



Greatest length of jaw on straight line 385 mm. 



Length of symphysis 85 mm. 



Depth of ramus below P. ^ 51 mm. 



Depth of ramus below ^L j 51 nim. 



Height of coronoid process above inferior angle 187 mm. 



Superior Dentition of Fully Adult Skull. 



Distance from anterior border of L^ to posterior border of 



canine , 63 mm. 



Length of diastema between canine and P. i 37 nmi. 



Length of premolar series 86 mm. 



Length of molar series 103 mm. 



Inferior Dentition of Young Lower Jaw. 



Transverse diameter of crown of Lj 8.5 mm. 



Fore and aft diameter of crown of Ly 6 mm. 



Length of crown of L^ 36 mm. 



Transverse diameter of L 2 at base 16.5 mm. 



Supero-inferior diameter at base . . 13.5 mm. 



Length of diastema between Lj and P.y. 29 mm. 



Length of premolar series 95 mm. 



Length of molar series 117 mm. 



The Scapula, Fore Limh, and Manus. 



The scapula is comparatively long, slender, and subtriangular in out- 

 line. The posterior border is concave, and extends from the glenoid 

 cavity for about two thirds of the total length of the scapula, where. 



