360 
liEl’OKT ri'ON PHYSICAL CHARACTEKS OF NILOTIC NEGROID TRIBES 
The contour of the hinder part of the skull, however, does not show the same difference, 
and varies in the races; in some cases, e.g. in the Bunins and Nuers, it projects well back¬ 
wards, while in others, e.g. Furs, it is less prominent. In the Furs and Fertits it is rather 
shorter than in the Australian (107 and 109 against 111), while in all the other tribes it is 
longer, reaching a maximum of 118 and 119 in the Nuers and Buruns respectively. 
The face is longest among the Furawis — 121 mm., and shortest among the Dinkas — 
111 mm., hut among these latter and most of the other tribes it is similar in length to 
that of the Australian. 
The face width (maximum intermalar width) is high in all, and the interzygoniatic 
breadth is even greater, and particularly so among the Baris and Furawis. 
The internal ocular width is practically the same in all the tribes, and varies only 
from 35-37 mm. The same constancy is found in the auriculo-alveolar measurement. 
The nose is in all oases flattened and wide, and projects forwards much less than in the 
Australian. 
With this must be associated the relative constancy in the relation of nasal height and 
width, the index of these two measurements ranging from 92 to 102, and in the great 
majority of tribes it lies between 93 and 98. This range is that most common among the 
native Australians. 
The ear is well formed in all cases ; the length of the ear-basis is rather short — 
averaging 45'7-4S'6 nnn., and the maximum length is also moderate, ranging from 
56-59 mm. 
A. MagTiEB 
A B 
Fig. 1 47 .—Malformations and unusual conditions of the Auricle found in three individuals 
A Large antitragus Dinka B Deep scaphoid fossa—Dinka C Absence of lobule Dinka 
This is a common condition among them 
The greatest width varies from 35-38 mm. The lobule is short, from 13-15-4 mm., 
and in all these respects, and particularly in the length of the lobule, the measurements of 
the external ear are smaller than the average among the Australians. 
Some illustrations of malformed auricles are appended. These show congenital defects 
in individuals rather than any racial character. 
Pelvis. Measurements of the pelvis were made in two tribes only--the Dinkas and 
the Buruns. These go to show that the Biirun pelvis is narrower in its principal dimensions. 
