No. 5 is the skull of an adult female. By comparing it in profile with No. 6, it will be seen that they resemble each other closely, except that the muzzle of the latter projects a little more, and the curvature of the skull across the top is less; but the transverse distance is a little greater. Nos. 2, 3, 4, and 5 are females; the others are males. [Illustration: NATIVES SKINNING A GORILLA (From a Photograph.)] While this series is not complete in either sex, it is an excellent one for comparative study. I do not know whether or not the heads of those with the crests were the same color as No. 6, but the _ntyii_, which I have mentioned as possibly a new specimen of the gorilla, does not have this crown of red. His ears are also said to be larger than those of the gorilla, but smaller than the chimpanzee’s. He is reputed to grow to a larger size than either of them. The skin of the gorilla is a dull black or mummy color over the body; but over the face it is a jet black, quite smooth and soft. It looks almost like velvet. One fact peculiar to this ape is that the palms of both the hands and the feet are perfectly black. In other animals these are usually lighter in color than the exposed parts. In most other apes, monkeys, baboons, and lemurs, as in all races of men, the palms are lighter than the backs of the hands and feet. The thumb of the gorilla is more perfect than that of the chimpanzee, yet it is smaller in proportion to the hand than in man. The hand is very large, but has more the shape of the hand of a woman than that of a man. The fingers taper in a graceful manner, but by reason of the web alluded to they appear much shorter than they really are. It is not really a web in the true sense, but the integument between the fingers is extended down almost to the second joint. The forward edge of this is concave when the fingers are spread. When the fingers are brought together the skin on the knuckles becomes wrinkled, and the web almost disappears. This is more readily noticed in the living animal than in the dead. The texture of the skin in the palms is coarsely granulated, and the palmar lines are indistinct. The great toe sets at an angle from the side of the foot, thus resembling a thumb. It has more prehension than the corresponding member of the hand. The foot is less flexible than the hand, but it has greater strength and prehension.