Sinclair: marsupialia of the santa cruz beds. 
403 
M>, anteroposterior diameter . 
“ transverse diameter . 
Lower lateral incisor, width of crown 
Lower canine, antero-posterior diam- 
eter at alveolar border . 
Lower canine, transverse diameter at 
alveolar border .... 
Anterior inferior premolar, antero-pos- 
terior diameter .... 
Anterior inferior premolar, transverse 
diameter ..... 
Median inferior premolar, antero-pos- 
terior diameter .... 
Median inferior premolar, transverse 
diameter ..... 
Posterior inferior premolar, antero- 
posterior diameter 
Posterior inferior premolar, transverse 
diameter ..... 
My, antero-posterior diameter . 
“ transverse diameter . 
Mg-, antero-posterior diameter . 
“ transverse diameter . 
Mj, antero-posterior diameter . 
“ transverse diameter . 
Mj, antero-posterior diameter . 
“ transverse diameter . 
Atlas, transverse breadth 
“ width of neural arch 
“ “ “ intercentrum 
Third cervical, length of centrum 
“ “ width across trans- 
verse processes .... 
No. 
No. 
No. 
No. 9254 
15,148. 
15,029. 
1 5 ,i 54 - 
Am. Mils. 
.0028 
.0028 
.0028 
.0023 
.0072 
.007 
.0065 
.006 
.0018 
.0046 
■0035 
.0045 
.002 
.006 
.0022 
.0065 
.0026 
.006 
.0027 
.0068 
.0035 
.0075 
.0038 
.007 
.004 
.0066 
•0033 
.006 
.003 
•043 
.010 
.0056 
•0155 
.028 
The following measurements of the manus and pes are from No. 15, 154 
Metacarpal II, length 
“ “ width of proximal end 
“ “ “ “ distal 
Metacarpal III, length 
“ “ width of proximal end 
“ “ “ “ distal end . 
Metacarpal IV, length 
“ “ width of proximal end 
.0155 
.0045 
•0055 
.018 
.004 
.005 
.018 
.0036 
