| OCR Text |
Show 23 ossified for the ridges support fissure is caudad of the the orbit. The foramen fissure, of the rotundum, largest foramen in caudad and ventrad of the orbital coalesces with the orbital fissure and is separated from it by a thin plate postmandibular of the eustachian canal is anterior end of the only partly of bone from the ventral wall. The foramen ovale is mediad to the opening optic and is the preceeding The orbital nerve. The process. horizontal slit. dorsal to the a tympanic bulla. A pointed craniomedial from the anterior border of the bulla extends ventrally The foramen the eustachian lacerum, about one-half is located at the craniomedial corner present bulla. canal, located A distinct basioccipitotympanic carotid, is present Spilogale examined; name its for this location, canal the suture of the bulla. canal, An external in the middle of the of the foramen for the external just mediad in all skulls of Mephitis and part of those of not observed in those of but was was not found in the name as this canal. the center of the medial side of the carotid foramen is near big as process over Conepatus. A literature, but considering basioccipitotympanic canal should be appropriate. The bulla. foramen is located at the caudomedial jugular Except for the foramen magnum, the caudal ventral portion often coalesces with the of the cranium. jugular foramen but is located further caudad The stylomastoid it is the near the in The corner largest hypoglossal Conepatus and occipital condyle of the foramen in foramen Spilogale, in Mephitis. foramen is caudomediad to the mastoidal process. |