. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Pelvis of the Gangetic Crocodile (side view). rosis (h). They are connected by the anterior border with the posterior abdominal ribs (g). The Lizards have, like the crocodiles, two sacral bones, as in the Iguana and Great Monitor. In many Lizards the sacral trans- verse processes {fig. 110. A, a) are very long, and, being articulated by suture to the bodies of the vertebrae, appear, at first sight, like additional ilia. This is particularly the case in a fossil specimen recently dis- covered by Sir Charles Lyell.* The il
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Pelvis of the Gangetic Crocodile (side view). rosis (h). They are connected by the anterior border with the posterior abdominal ribs (g). The Lizards have, like the crocodiles, two sacral bones, as in the Iguana and Great Monitor. In many Lizards the sacral trans- verse processes {fig. 110. A, a) are very long, and, being articulated by suture to the bodies of the vertebrae, appear, at first sight, like additional ilia. This is particularly the case in a fossil specimen recently dis- covered by Sir Charles Lyell.* The ilia (b) are directed forwards and downwards, and the su- perior extremity projects backwards in a trun- cated point (e). The ischia (c) are larger, and directed backwards at a great angle with the ilia, uniting in a truncated median symphysis, which is separated from that of the pubes ; so that the obturator foramina are divided only by ligament (g), and communicate in the dry bones. In some Lizards the ischia present posteriorly a spinous projection. The pubes participate, with the ilia and ischia, in the for- mation of the acetabula, present a spine at their cotyloid extremity (d), curving down- wards and outwards, and unite in a very narrow symphysis; but in the Monitors and Sauve-gardes the pubic symphysis is distin- guished by its greater breadth and truncated form (/). The ilio-pubic angle is about 160°, retiring posteriorly in the Great Monitor Lizard, and the ilio-ischial angle is very acute, being 60° only (see fig. 112. fs.). In the Mcncpoma alleghani the sacral trans- verse processes are directed backwards, and support apophyses to which the ilia are at- * Lecture at the Royal Institution. tached. The pubes and iscfiia are short and oblong, and so approximated as to leave no obturator opening. Upon the pubic spine, in the Camelcon, are two Cartilages, which have been stated by Duges to be of a marsupial character. A Fig. Please note that these images are extr
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