438 Savage and Wyman, External Character, 
one or two inches, according to age, but in none of them isto 
be seen even a rudiment of the interparietal ridge. 
The skull of the Engé-ena recedes much farther from the 
human type than that of the Enché-eco, in its greater devel- 
opment of the cranial crests and ridges, in the greater elonga- 
tion of the upper jaw downwards and forwards, in the length 
of the bony palate, no less than in the much more brutal and 
ferocious expression of the face; in this last respect it even 
surpasses the Orangs of Borneo and Sumatra. 
In the conformation of the pelvis, as indicated by the broad 
and concave iliac bones, the projection forwards of the ante- 
rior spines, it is, on the other hand, the most anthropoid of all 
the Simiade. The central portion of the ilia acquires a cer- 
tain degree of transparency in both sexes, and the same has 
been noticed, though to a less extent, in the pelvis of the En- 
ché-eco. This observation is interesting in connection with 
the results obtained by Vrolick with reference to the marks of 
degradation in the Negro, an index of which he finds in the ab- 
. sence of this character. Certainly, a much more satisfactory 
. index of degradation is to be derived from the general shape of 
the bones, and their approximation in form to those of the semi- 
erect animals with which they have been compared ; and the 
exact measure would be the amount of deviation from the 
Caucasian type. 
1 “The pelvis of the male Negro, in the strength and density of its substance, and 
t bones wr hinh HON 
of the p resembles the pelvis of the wild beast, while we 
contrary, the,pelvis of the female of the same race combines lightness of sub h of 
bone are so closely united. This transparency was found only in one er udi 
in which, however, the part in question when held up to the light, yet ap! how- 
f diplóe int i en the bony plates." ^ Delicate À 
itis difficult to separate fro jue 
aller breadth of the sacrum, the smaller extent of the haunches, &c^ Pr 
wehes into the Phys. Hist. of Mankind, 4th edit. vol. i. p. 324- ; 
mitthe — 
