. A manual of elementary zoology . Zoology. MAMMALIA 473 the Primates, which include monkeys and man, together Primates w'^ ^e lemurs, which link the monkeys to other mammals. The Primates are plantigrade, and either their thumb or their great toe—usually both— can be opposed to the other digits so as to grasp objects. There are well-developed clavicles, and the upper arm and thigh are free, as in the elephants, not enclosed in. Fig. 352.—The bones of the hard palate and upper permanent teeth of man. , Anterior palatine foramen, or foramen incisivum; tr., canine tooth; z'., incisor teeth
. A manual of elementary zoology . Zoology. MAMMALIA 473 the Primates, which include monkeys and man, together Primates w'^ ^e lemurs, which link the monkeys to other mammals. The Primates are plantigrade, and either their thumb or their great toe—usually both— can be opposed to the other digits so as to grasp objects. There are well-developed clavicles, and the upper arm and thigh are free, as in the elephants, not enclosed in. Fig. 352.—The bones of the hard palate and upper permanent teeth of man. , Anterior palatine foramen, or foramen incisivum; tr., canine tooth; z'., incisor teeth ; ?«., molar teeth; , suture between maxillary and palatine bones; , posterior palatine foramen or foramen palatimtm majus ; premolar teeth ; , spina nasalisposterior. the skin of the trunk, as in most mammals. The orbits are turned forwards, not, as is usual, to the sides, and, except in the lemurs, are enclosed behind by a complete bony wall. The majority of these peculiarities are con- nected with an arboreal habit. It should be noted that in most respects the Primates, and man with them, are not highly specialised animals. In their limbs, in their teeth, in the possession of clavicles, and in the alimentary canal 31. 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 Borradaile, L. A. (Lancelot Alexander), 1872-1945. London : H. Frowde, Hodder & Stoughton
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectzoology, bookyear1920
