. The comparative anatomy of the domesticated animals. Veterinary anatomy. THE MOUTH. 41& one for the secretion of the dentine, lodged in the internal cavity of the tooth, and hollowed into a cup-shape at its free extremity ; the other contained in the external cul-de-sac (Fig, 228, a, b, c). Tusks, Fangs, or Canine Teeth.^—" The tusks of Solipeds only exist in the male ; it being quite exceptional to meet with them in the female, and even then they are rarely so strong as in the male. " These teeth are four in number, and are placed one at each side of the jaws, a little behind
. The comparative anatomy of the domesticated animals. Veterinary anatomy. THE MOUTH. 41& one for the secretion of the dentine, lodged in the internal cavity of the tooth, and hollowed into a cup-shape at its free extremity ; the other contained in the external cul-de-sac (Fig, 228, a, b, c). Tusks, Fangs, or Canine Teeth.^—" The tusks of Solipeds only exist in the male ; it being quite exceptional to meet with them in the female, and even then they are rarely so strong as in the male. " These teeth are four in number, and are placed one at each side of the jaws, a little behind the incisors, to which the lower canines are much nearer Fie. 2" INCISOR TEETH OF THE HORSE (DETAILS OF STRUCTURE). 1, A tooth in which is indicated the general shape of a permanent incisor, and the particular forms successively assumed by the dental table in consequence of friction, and the continued pushing outwards of these teeth. 2, A virgin tooth, anterior and posterior faces. 3, Longitudinal section of a virgin tooth, intended to show the internal conformation and structure. Not to complicate the figure, the external cement, and that accumulated in the infundibulum, has not been shown. 4, Transverse section for the same purpose: a, Encircling enamel; 6, central enamel; c, dental star ; d, dentine. 5, Deciduous tooth. than the upper. Between them and the first molar there is left a considerable space, which constitutes the bar of the inferior jaw. " The free portion of the tusk, slightly curved and thrown outwards, par- ticularly in the lower jaw, offers two faces—an external and an internal—separated from one another by two sharp borders inclined to the inner side, and meeting in a point at the extremity of the tooth. The external face, slightly rounded, presents a series of fine striae, longitudinal and parallel. ' The quotations included within inverted commas are from M. Lecoq's Traite de VExt€rieur du Cheval et des Principaux Animaux
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