. Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates. 126 COMPARATIVE ANATOMY Apart from a median cartilaginous bridge connecting the anterior orbital region with the nasal capsules, and corresponding to the interorbital septum of the Sauropsida (by the ossification of which a presphenoid may arise), these capsules are connected Kasal cups. Sejituiii nasi. Orbitonas. fissure Ala orbitalis. Ala temp, (alisph.) Malleus Incus. Parotic crest And. caps. Jug. — Sup. orb. Jissurt Carotid for. Parietal Int. aud. meatua Jug. for. X flvpofflostal for Tect. synot.
. Comparative anatomy of vertebrates. Anatomy, Comparative; Vertebrates. 126 COMPARATIVE ANATOMY Apart from a median cartilaginous bridge connecting the anterior orbital region with the nasal capsules, and corresponding to the interorbital septum of the Sauropsida (by the ossification of which a presphenoid may arise), these capsules are connected Kasal cups. Sejituiii nasi. Orbitonas. fissure Ala orbitalis. Ala temp, (alisph.) Malleus Incus. Parotic crest And. caps. Jug. — Sup. orb. Jissurt Carotid for. Parietal Int. aud. meatua Jug. for. X flvpofflostal for Tect. synot. Fit;, ill, A.—SKULL OK AN EMBRYO MOLE (4'2'3 MM. ix LENGTH FROM NOSE TO BASE OK TAIL). FROM AN ENLARGED MODEL, x ^. A, dorsal, and B, ventral view. The investing bones are removed on the left side. (After E. Fischer.) with the cerebral part of the chondrocranium merely by thin bars on either side (sphenethmoid cartilage): the Mammalian skull is therefore of the tropibasic type l (p. 77). The anterior part of the basis cranii is formed by the ossifica- tion of the cartilage, which either gives rise to a distinct pre- 1 Certain facts in the development of the skull in Apes indicate that the Primates diverged very early from the common mammalian stem, many primi- tive characters being present which are no longer recognisable in other "lower" 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 Wiedersheim, Robert, 1848-1923; Parker, W. N. (William Newton), d. 1923. London, Macmillan and co. , limited
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