The body of the =hyoid bone= is broad from before backward, short transversely, and bears on its ventral aspect a very short pointed lingual process. The thyroid cornua are wide and curved, concave and grooved dorsally; their ends are attached to the thyroid cartilage of the larynx by rather long bars of cartilage. The small cornua are short, wide, and flattened dorso-ventrally; they are attached to short bars which project from the junction of the body and thyroid cornua. The middle cornu is a little longer than the small cornu, but is relatively slender; it is largely cartilaginous in the young subject and does not ossify at either end. The great cornu is a very slender rod, slightly enlarged at either end; the upper extremity is attached to the hyoid process of the temporal by a rather long and wide bar of cartilage. [Illustration: FIG. 112.—MANDIBLE OF PIG. _a_, Body of mandible; _b_, horizontal part of ramus; _f_, vertical part of ramus; _c_, interalveolar border; _c′_, interval between canine and corner incisor; _c″_, interval between first and second premolars; _d_, mental foramina; _e_, vascular impression; _g_, coronoid process; _h_, condyle; _i_, sigmoid notch; _k_, mandibular foramen; _1–7_, cheek teeth, _8_, canine tooth; _9_, _10_, _11_, incisors. (Ellenberger-Baum, Anat d. Haustiere.) ] THE SKULL AS A WHOLE The =length= and the =profile= contour vary greatly in different subjects. Primitively the skull is long—especially in its facial part—and the frontal profile is almost straight. The condition is very pronounced in wild or semi-feral pigs, and exists also in the improved breeds during extreme youth. Most of the latter are decidedly brachycephalic when fully developed; the face is “dished” in a pronounced fashion. The frontal region slopes sharply upward, and the nasal region is shortened, and in some specimens even distinctly concave in profile. The supraorbital foramina are about midway between the orbital margin and the frontal suture. The supraorbital grooves extend forward from the foramina to the nasal region and turn outward and downward toward the infraorbital foramina over the ridges which separate the nasal and lateral regions.