. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. minores almost along their whole length and mask the pterygoid processes, so as to give a very peculiar appearance to the base of the cranium. The bones of the face are remarkable for their massive developement, but as their posi- tion is sufficiently indicated in the next wood- cuts, it would be useless to particularize them further. Ribs and sternum. — The thoracic cavity throughout all the Pachydermatous genera is enormous in proportion to the great bulk and excessive weight of the viscera. The ribs, in fact, are cont
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. minores almost along their whole length and mask the pterygoid processes, so as to give a very peculiar appearance to the base of the cranium. The bones of the face are remarkable for their massive developement, but as their posi- tion is sufficiently indicated in the next wood- cuts, it would be useless to particularize them further. Ribs and sternum. — The thoracic cavity throughout all the Pachydermatous genera is enormous in proportion to the great bulk and excessive weight of the viscera. The ribs, in fact, are continued backwards almost to the pelvis, and from their extraordinary size and Fig. 472. Occipital bone of a young Boar, shewing its division into four pieces. In the above three figures the parts indicated are as follows :—a, a, frontals ; b, b, parietals ; c, c, 2, c 2, c 3, occipital; d, temporal ; e, lateral processes of occipital bone ; f, sphenoid; g, supra-orbital plate of os frontis ; h, os lacrymale ; bone; h, superior maxillary; I, inter- maxillary ; m, nasal; n, inferior maxilla; o, ossified nasal cartilage ; p, palatine. turbinated laminae are very large, so that the delicacy of the sense with which they are con- nected is evidently only inferior to that of the carnivorous quadrupeds. The sphenoid occupies the same position as in the skull of Man, and in the hog tribe is very similar in its shape and the general ar- rangement of its processes to the human. In the Elephant the anterior and posterior clinoid processes are but slightly developed, so that the base of the cranium internally has a very flat appearance, whilst externally, such is the enor- mous developement of the sphenoidal cells, that they stretch on each side beneath the alee. Skull of A merican Tapir. Fig. 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 p
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