OCR Text |
Show 1869.] CLASSIFICATION OF THE CARNIVORA. 7 externally into the much thickened spout-like floor of the meatus externus. At the inner extremity of this floor is a freely projecting oval hp (t), which gives attachment to the membrana tympani, and Fig. I. Part of the base of the skull of the Grizzly Bear (Ursus ferox). c. The condyloid foramen. I. The foramen lacerum posticum. car. The carotid canal, e. The eustachian canal, o. The foramen ovale, a, the posterior, and a' the anterior, opening of the alisphenoid canal, p. The paroccipital process, m. The mastoid process. & The stylo-mastoid foramen, m. a. The external auditory meatus, g. The glenoid foramen*. * This and all the figures, except figs. 9, 10, and 14, are taken from specimens in the Museum of the Royal College of Surgeons. All are of the natural size, except fig. 4, which is enlarged. |