58 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY 
CO 
o 
o 
< 
o 
M 
m 
Ss 
< 
B 
B 
g - 
B O 
Sz; 
B 
!> 
o 
i—i 
B 
O 
B 
m 
pq 
w 
s-3 
pq 
< 
H 
B 
O 
< 
B 
O 
B 
O 
B 
B 
B 
M 
B 
> 
B 
O 
m 
B 
fc 
B 
M 
U 
*—f 
B 
B 
B 
O 
O 
l 
o 
t- 
*© 
o 
B (M 
B O 
B i-h 
Ph .„ 
CO 
o 
o 
o 
co 
-B 
CO 
Vertical 
diameter. 
3.92 
7.50 
2.90 
3.03 
Breadth at 
asterion. 
3.41 
4.16 
3.44 
3.20 
Breadth at 
stephanion. 
3.75 
3.33 
3.27 
2.83 
Lower 
frontal 
breadth. 
2.84 
2.97 
3.30 
3.10 
Breadth 
between 
ears. 
2.69 
1.82 
2.39 
3.08 
Transverse 
head 
diameter. 
2.77 
2.26 
2.76 
2.58 
Metopic 
ant-post 
diameter. 
2.88 
1.70 
i 
2.92 
3.40 
Inial ant- 
post 
diameter. 
2.79 
1.39 
2.83 
3.39 
Max. head 
length. 
% 
2.70 
2.00 
2.45 
3.20 
*0 Of 
co o 
CN <M 
Of 
O H 
O CO 
Crania from 
Ipi-iboto. 
Crania from 
Cerro de Luna. 
Orbit 
height. 
3.38 
4.75 
4.66 
3.11 
Orbit 
breadth. 
4.80 
4.77 
2.87 
3.58 
Spino- 
alveolar 
height. 
10.05 
10.00 
9.43 
10.52 
Total 
height of 
face. 
4.44 
6.41 
3.42 
6.33 
Max. 
breadth at 
cheekbones. 
2.22 
1.97 
2.71 
3.22 
Breadth 
between 
jugals. 
2.10 
2.21 
2.85 
1.93 
Breadth 
between 
malars. 
3.89 
2.90 
3.09 
1.83 
Interior 
biorbital 
diameter. 
2.19 
3.35 
2.96 
2.13 
Exterior 
biorbital 
diameter. 
2.14 
3.08 
2.41 
1.78 
f-O Of 
Of 
Ipi-iboto. 
d 
3 
o 
o 
rH 
rH 
<D 
O 
