. The comparative anatomy of the domesticated animals. Veterinary anatomy. 62 THE BONES. origin of the superior curved lines is very elevated and strong. The cervical tuberosity of the external occipital protuberance is absent or little marked; the styloid processes are short, and well deserve tlie name of jugular eminences. TJie foramen lacerum is divided into two portions by the mastoid protuberance, and the basilar process is wide, long, and tliick, and hollowed on tlie side by a channel tliat joins a similar one in the temporal bone to form a large venous canal. This last communicates, beh
. The comparative anatomy of the domesticated animals. Veterinary anatomy. 62 THE BONES. origin of the superior curved lines is very elevated and strong. The cervical tuberosity of the external occipital protuberance is absent or little marked; the styloid processes are short, and well deserve tlie name of jugular eminences. TJie foramen lacerum is divided into two portions by the mastoid protuberance, and the basilar process is wide, long, and tliick, and hollowed on tlie side by a channel tliat joins a similar one in the temporal bone to form a large venous canal. This last communicates, behind, with the posterior foramen lacerum, and opens, in front, in the cranium, where it is continuous with the cavernous groove of the sphenoid. The anterior angle forms a very marked prominence, which is deeply fixed into the parietal bone, and partly constitutes the internal protuberance of that bone. 2. Parietal hone.âIn the Bog the parietal bone, formed by two ossific centres only, is distinguished by the great develo2)ment of the ridges and the parietal protuberance. This last, constituted in part by the occipital bone, does not show any lateral excavations at its base; tiiey are carried lower, near the summit of tlie petrous process, on the sides of the occipital bone. The parieto-temiwral canals are continued, notwithstanding, to the base of the protuberance, which they traverse, to open into each otlier in its interior. In the Cat there are scarcely any parietal crests, and the internal protuberance is replaced by two great trans- verse bony plates which separate the cavity of the cerebrum from that of tlie cerebellum. 3. Frontal bone.âIn carnivora, the external face of this bone presents in its middle a more or less marked de- pression. The orl)ital arch is incomplete, and there is no superciliary forauien, or mortice on the inner face. The bone is united with the supermaxillaries. 4. Ethmoid bone.âThe ethmoidal fossa is very deep, and the cells very developed and di
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