RIGGS: HOPLOPHONEUS OCCIDENTALIS. 45 



ones. From the fact that the arch extends further back in this 

 animal than in the lion, it would seem certain that there could not 

 be a less number of vertebrae, and it is very probable that there 

 were more. 



MEASUREMENTS OF VERTEBR/E. 



Atlas, breadth across the anterior articulating surfaces 55 



" antero-posterior breadth of arch 26 



" height of neural opening 31 



Axis, greatest length 64 



" breadth across anterior articulating surface 49 



Seventh cervical, width of posterior and of centrum 38 



" " length of centrum 30 



" " height of neural opening 12 



" " width of neural opening 24 



Seventh dorsal, expansion of transverse processes 62 



" " width of neural opening 18 



" " height of neural opening g 



*' " length of centrum 28 



Second lumbar, length of centrum 41 



" " width of centrum 29 



" " width of neural opening 19 



I " " height of neural opening 9 



Sacrum, length 104 



" width of anterior end 63 



" least diameter of first transverse process 35 



First caudal, length of centrum 32 



width 28 



Entire length of first eleven caudal vertebrae 440 



Width of eleventh caudal 28 



Length of same 43 



Pectoral girdle. Only the lower half of the scapula is present, 

 and one of the sternal bones. The glenoid surface of the scapula 

 is rounder in outline than in //. robustits and much more so than in 

 Felis coiicolor. The anterior part of the ventral surface is more 

 deeply concave, and the coracoid process, like that of H. robustits, 

 curves inwardly, more strongly than in the lion. The neck is less 

 constricted and the spine is much nearer the axillary border. At 

 the origin of the teres minor muscle the border is thickened and 

 massive, presenting a posterior face which stands at right angles 

 to the subscapular surface. The same is true in H. robust us, but 

 in a less marked degree. 



Fore lieg. The liiinieriis is described from two bones, one of 

 which lacks the head, the other the distal third. The length is 



