Enge-ena, from Gaboon, Africa. 283 
the other hand, is shorter and less prominent in 7. gorilla 
than in 7. niger, and, in that respect, the larger species de- 
viates less from Man.’’** The statement in the first portion 
of this sentence is certainly correct, but a question maybe 
fairly raised on that in the second. The lower portion of the 
nasal opening in the Engé-ena is so much depressed, espe- 
cially in the median line, that the intermaxillary bone be- 
comes almost horizontal, and the sloping of the alveolar por- 
tion takes place so gradually, that it is difficult to determine 
where the latter commences, and‘ the nasal opening termi- 
nates, and in this respect, it deviates much farther from man 
than T. niger. 
3. “ The next character, which is also a more anthropoid 
one, though explicable in relation to the greater weight of the 
skull to be poised on the atlas, is the greater prominence of 
the mastoid processes in the T. gorilla, which are represented 
only by a rough ridge in the 7. niger.”’+ 
4. The ridge which extends from the ecto-pterygoid along 
the inner border of the foramen ovale, terminatesin 7. gorilla 
by an angle or process answering to that called “‘ styliform” or 
‘“‘ spinous” in Man, but of which there is no trace in 7’. niger.t 
5. * The palate is narrower in proportion to the length in 
the T. gorilla, but the premaxillary portion is relatively longer 
in T. niger.’ § j 
These constitute the most important, if not the only, cha- 
racters given in Professor Owen’s Memoir, which would seem 
to indicate that the Engé-ena is more anthropoid than the 
Chimpanzée, and some of these, it is seen, must be received 
with some qualification. 
Tf, on the other hand, we enumerate those conditions in 
which the Engé-ena recedes farther from the human type 
than the Chimpanzée, they will be found far more numerous, 
and by no means less important. The larger ridge over the 
eyes, and the crest on the top of the head and occiput, with 
the corresponding development of the temporal muscles, form 
the most striking features. The intermaxillary bones articu- 
lating with the nasals, as in the other Quadrumana and most 
* P. 39. t Op. Cit., p. 394. t P. 395. § Lbid. 
