. Anthropoid apes. Apes. THE EXTERNAL FORM OF ANTHROPOID APES. 39 The small ear averages 55 mm. in length, and 12 mm. in width, and has a general resemblance in structure to the human ear (Fig. 8). On the fore- part of the short, thick neck there are irregular, and in some places very deep circular folds of skin. The tliroat-pouch distends part of this slack, \iB:inkled skin, which liangs down in front like a great empty wallet (see Figs. 7 and 9). The structure of the other parts of the body lacks even to some extent the powerful and symmetrical formation which we Fig. the observe in
. Anthropoid apes. Apes. THE EXTERNAL FORM OF ANTHROPOID APES. 39 The small ear averages 55 mm. in length, and 12 mm. in width, and has a general resemblance in structure to the human ear (Fig. 8). On the fore- part of the short, thick neck there are irregular, and in some places very deep circular folds of skin. The tliroat-pouch distends part of this slack, \iB:inkled skin, which liangs down in front like a great empty wallet (see Figs. 7 and 9). The structure of the other parts of the body lacks even to some extent the powerful and symmetrical formation which we Fig. the observe in the gorilla, and in- deed in the chimpanzee. The trunk, with broad yet rather angular and sloping shoulders, with flattened breast, rounded back, and still more rounded belly, is tun-shaped, and gives the impression of a want of proportion. In lean individuals the gluteal region resembles the projecting rump of a fowl, and this may also be observed in the J'oung gorilla and chimpanzee. The lonir, muscular arms reach to the ankles when the animal is in an erect posi- tion, and are altogether out of proportion with the rest of the body. The powerful upper arm is shorter than the lean forearm. The hand is long and narrow. The thumb, which reaches as far as the metacarpo-phalangeal joint, has a displeasing and almost rudimentary effect. A web unites the fingers, sometimes extending along a third of the first phalanx, sometimes along half. The middle. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hartmann, Robert, 1832-1893. New York, D. Appleton and Co.
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