28 



ARKIV FÖR ZOOLOGI. BAND 2. NIO 20. 



of the same length. Furthermore, the paratoids, being in the 

 young ones nearly parallel become in older examples very 

 distinctly convergent in front. 



The variations in colour due to different ages seem to 

 be very small if any at all. Possibly, there is a tendency to 

 reduce the dark great dorsal spöts, all the three full-grown 

 specimens being in want of such spöts between the eyes and 

 not having more than two on the back. In most of the 

 others we find two livercoloured spöts on the interorbital 

 region and beside those four equal ones on the back, although 

 even in these one or another pair may be vanished. In one 

 of the largest and one of the smallest specimens there is an 

 indication only of one of these spöts, the vvhole upper side 

 being uniform. 



Werner says that the large specimens should be in wan| 

 of the usual dark crossbands on thighs and calves, but in 

 all the three large specimens in this colleetion we find them 

 ver}^ distinct. 



Average-table. 



^ The length of the paratoids is coiuited from their hind margin to 

 the eye. 



