. Elementary text-book of zoology [electronic resource]. Zoology. MAMMALIA. 511 condyle of the mandible. Owing to this arrangement the mandible can only move in a perpendicular plane. Imme- diately behind the glenoid cavity is a wide process of the squamosal, called the post-glenoid process, which prevents all backward horizontal motion of the mandible. On the cranial surface there are at least two large bony crests, the sagittal crest along the middle dorsal line and the occipital crest from side to side at the junction of Fig. 314.—The Skull of the Dog from the right side. parietals and occi
. Elementary text-book of zoology [electronic resource]. Zoology. MAMMALIA. 511 condyle of the mandible. Owing to this arrangement the mandible can only move in a perpendicular plane. Imme- diately behind the glenoid cavity is a wide process of the squamosal, called the post-glenoid process, which prevents all backward horizontal motion of the mandible. On the cranial surface there are at least two large bony crests, the sagittal crest along the middle dorsal line and the occipital crest from side to side at the junction of Fig. 314.—The Skull of the Dog from the right side. parietals and occipitals. These form the surfaces of origin for the large jaw-muscles {temporalis) which pass down in the temporal fossa to be inserted in the mandible, the coronoid process of which is large. In this region we also observe the strong and widely protruding zygomatic arch. The tympanic bone is expanded into a large bulbous swel- ling or tympanic bulla. If the inside of the cranium be viewed through the foramen magnum, a bony septum or tentorium will be seen, which protrudes between cerebrum and cerebellum. Compared with the horse and ox, the cranial part of the skull is larger and longer in comparison with the facial portion, the orbits face forwards and, in dried skulls, are confluent with the temporal fossae. We saw that the facial portion of the Ungu/afa (Horse and Ox) was long, partly at least to provide room for the (From Flower and Lyddeker.). 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 perfectly resemble the original Masterman, Arthur Thomas; Parsons, John Herbert, Sir, 1868-1957, donor; S. H. Lazarus (Firm); University College, London. Library Services. Edinburgh : E. & S. Livingstone
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1901
