794 GEOLOGICAL SURVEY OF THE TERRITORIES. 
PLATE XVIII. 
Fig. 108.—Right coracoid and scapula of P. californianus, size of life; the dried 
tissues, stretching across the glenoid cavity, assist in retaining these bones in their 
proper position. 
Fic. 109.—Right humerus, anconal aspect, from the same individual; life size. The 
dark pit at its lower side shows the entrance to the largest of the pneumatic fossx. 
