. A course of instruction in zootomy (vertebrata). Anatomy, Comparative. THE LIZARD. '37 lower jaw : a pulley-shaped surface, forming the hinder angle of the inferior temporal fossa, and borne by a curved bone the quadrate (§ 53). 38. The basis cranii, a broad plate forming the floor of the brain-case, and continued forwards in the perfect skull by the interorbital septum (Figs. 35 and 37, ), a plate of cartilage forming a median vertical partition between the orbits (§ 69). . en FIG. 35.—Lacerta agilis. Longitudinal ve-tical section of the skull (after W. K. Parker,
. A course of instruction in zootomy (vertebrata). Anatomy, Comparative. THE LIZARD. '37 lower jaw : a pulley-shaped surface, forming the hinder angle of the inferior temporal fossa, and borne by a curved bone the quadrate (§ 53). 38. The basis cranii, a broad plate forming the floor of the brain-case, and continued forwards in the perfect skull by the interorbital septum (Figs. 35 and 37, ), a plate of cartilage forming a median vertical partition between the orbits (§ 69). . en FIG. 35.—Lacerta agilis. Longitudinal ve-tical section of the skull (after W. K. Parker, slightly altered) X 4. The cartilaginous parts are distinguished by dotting, the membranous spaces by cross- hatching. als, alisphenoid : , basioccipital : , basipterygoid : , sphenoid : , exoccipital : , epiotic ; , epipterygoid : fa, fon- tanelle: fr. frontal: , interorbital septum: na, nasal: , occi- pital condyle : , opisthotic : pa, parietal \, parasphenoid : , p-emaxilla : , prootic : , septo-maxillary : , septum nasi • , supraoccipital: i-o, vomer . I—XII, foramina for exit of the cere- bral nerves. 3' 19. The tympano-eustachian fossa, a depression just external to the basis cranii and bounded by the quadrate : against its dorsal wall lies a small rod of bone, the columella auris (§ 65,-Fig. 36).. 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 Parker, T. Jeffery (Thomas Jeffery), 1850-1897. London, Macmillan
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectanatomy, bookyear1884
