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Fig. 401.—Sacred Monkey of India (Semnopithecus entellus). × 1/12.
Monkeys, Apes, and Man.—Study the figures (399, 400); compare apes and man and explain each of the differences in the following list: (1) feet, three differences; (2) arms; (3) brain case; (4) jaws; (5) canine teeth; (6) backbone; (7) distance between the eyes.
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Fig. 402.—Lemur (Lemur Mongoz). × 1/10. Which digit bears a claw?
A hand, unlike a foot, has one of the digits, called a thumb, placed opposite the other four digits that it may be used in grasping. Two-handed man and four-handed apes and monkeys are usually placed in one order, the Primates, or
