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Show ANATOMY OP THE FRILLED LIZARD. 11 dorsal parietes extends to the very tip of that organ. It is not superfluous to direct attention to the fact, since the membrane in question is not always coextensive with the lung in Lizards. Furthermore, in Physignathus the left lung, but not the right, has an attachment to the ventral body-wall by a mesentery extending for about half its length. I have also observed this ligament in Agcimci colonorum. Liver.-The liver is bound down to the ventral parietes by a double umbilical ligament, the presence of which distinguishes Chlamydoeaurus from Uromastix. In possessing this double |L i f l i m '£ - w r ' - 'V f ‘ m L m e s m m b f e I Ik m . . # m Text-fig. 6. Lung of Pliysignatlius, opened to show internal structure. |