Engé-ena, from Gaboon, Africa. 285 
While the proportions of the humerus and the ulna are 
more nearly human than in the Chimpanzée, those of the hu- 
merus and femur recede much farther from the human pro- 
portions than they do in the Chimpanzée, as will be seen by 
the following measurements— 
Humerus. Femur. 
Man, . . : ; 15:0 18°5 
Chimpanzée,_ . : 4 10°9 11°0 
Engé-ena, . : : 17:0 14:0 
Thus, in Man the femur is three inches longer than the 
humerus ; in the Chimpanzée, these bones are nearly of the 
same length ; and in the Enge-ena, the humerus is three inches 
longer than the femur, indicating on the part of the Engé-ena 
a less perfect adaptation to locomotion in the erect position, 
than in the Chimpanzée. 
Description of a Canine Tooth of a Male Engé-ena.—In only 
one of the crania of the male Engé-ena which I have seen 
were the canines remaining ; and these were so much abraded 
that they had lost, to a great extent, their natural outline, 
and, consequently, their most striking and distinctive marks. 
In the females, as in the Chimpanzee and the Quadrumana, 
generally, the canines are much less elongated than in the 
males. Among the bones first sent to this country by Dr 
Savage, was a canine tooth, which I was not able to identify, 
until an opportunity occurred of comparing it with Professor 
Owen’s descriptions of more perfect teeth. The crown is 
laterally compressed, the posterior edge being trenchant, and 
its base provided with a prominent tubercle, which is doubt- 
less rendered more conspicuous by the wearing of the edge 
‘beneath it. On its inner surface the crown is impressed with 
two strongly marked grooves, which extend from the base 
nearly to its apex; and include between them a prominent 
rounded ridge. The following table gives the comparative 
measurements of two canines from the upper jaw of the Engé- 
‘ena, and one from that of the Chimpanzée. The figures 
in the first column relate to the tooth described above ; those 
in the second and third to the measurements given by Pro- 
fessor Owen,* the measurements being in inches and lines. 
* Trans. Zoolog. Soc. London, vol. iii., p, 395. 
