| OCR Text |
Show 16 MR. W. H. FLOWER ON THE [Jan. 14, porting the membrana tympani, and developed originally in membrane. Ossification extends from this, so as to complete the outer chamber and the very limited lip of the meatus auditorius externus. The inner chamber is formed from a distinct piece of hyaline cartilage, which at birth is a narrow slip, pointed at each end, lying be tween the tympanic ring and the basioccipital, applied closely to Part of the base of the skull of the Tiger (Felis tiyris). A portion of the auditory bulla has been removed to show its interior. The cavity of the inner or posterior chamber is exposed. J r. The fenestra rotunda in the petrosal, s. The septum between the chambers I"ureesape 'e COmmunicatlon* T h e other Otters as in the preSding |
