. Anthropoid apes. Apes. 56 ANTHROPOID APES. it will be well to note the important differences between the structure of the skull of a young and aged male, and of a young and aged female gorilla. The skull of the aged male animal is large and heavy. Its average weight is one and a quarter kilogrammes. The longitudinal diameter, from the. Fig. Skull of an aged male govilla in profile. alveolar point of the upper jaw to the occipital point, may be as much as 294 mm. The over- hanging orbits are high in front, and flattened off behind, and their upper edges unite to form a ridge in the middl
. Anthropoid apes. Apes. 56 ANTHROPOID APES. it will be well to note the important differences between the structure of the skull of a young and aged male, and of a young and aged female gorilla. The skull of the aged male animal is large and heavy. Its average weight is one and a quarter kilogrammes. The longitudinal diameter, from the. Fig. Skull of an aged male govilla in profile. alveolar point of the upper jaw to the occipital point, may be as much as 294 mm. The over- hanging orbits are high in front, and flattened off behind, and their upper edges unite to form a ridge in the middle of the face. To these the back parts of the orbits are attached, in shape like a trun- cated cone, round and prominent in front, and nar- rowing into bony capsules in the direction of the brain-pan. They open directly in front, and the aperture is generally in the form of a regular square. The edgrs are seldom so blunted off as to present a figure somewhat approaching to a circle ( 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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Keywords: ., bookcentury1800, bookdecade1880, bookpublisherne, booksubjectapes
