LIZARDS IN THE COLOMBO MUSEUM. 



191 



Theconyx, gen. nov. 



Limbs well developed, pentadactyle ; claws retractile ; other 

 characters as in Lygosonia. This new genus is intermediate 

 between Lygosoma and RisteUa, from the latter of which it differs 

 in having five digits on each foot and in the other points which 

 separate the former genus from the latter, except as regards the 

 claws. 



Fig. 1. — Young ThccoHi/x halianus showing general form and coloration, 

 from above. X 3. 



