1907.J 



OF CERTAIN SPECIES OF SQUAMATA. 



39" 



notewortliy diflerence about these cfeca as compared with those 

 of other species which I have examined, is that there is an anasto- 

 mosis between the roots emerging separately from the lung. 

 Finally, the small number of cfeca as compared, for example, with 

 Ch. calcarifer is a fact worthy of attention, since it is the beginning- 

 of the immense reduction seen in Ch. hasiliscus, which culminates 

 in the total absence of these cseca in Ch. pumilus. 



Text-fig. 11. 



Text-fig. 12. 



Text-fig-. 11. — Lung of CJiamceleon dilepis, entire. 



Text-fig-. 12. — Lung of CJiamceleon parvilobus, opened longitudinally. 



The above description also applies in generalities to the right 

 lung of the same individual. That is to say, with regard to the 

 shortness, tubular character, and fewness of the caecal outgrowths. 



