1905.1 



AXATOMY OF 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 Agama colonorum. 



Lung of PIij/sic/natJiKS, opened to show internal struc'turc. 



Live)-. — The liver is bound down to the ventral parietes by a 

 doable umbilical ligament, the presence of -which distinguishes 

 Cldaiui/domnrus fi'om Uromastix. In possessing this double 



