20 



SNAKES OF CEYLON. 



further back, as broad as the frontal along a line connecting 

 the centres of the eyes. Parietals : Longer than the frontal. 

 Preeocular : None. Postocular : One. Temporal : One ; 

 nearly as long as the supraocular. Swpralabials : Six ; the 1st 

 and 2nd touching the nasal, 3rd and 4th the eye, and the 4th 

 and 5th the temporal. Sublinguals : Two pairs, anterior 

 larger, and in contact with three infralabials ; posterior hardly 

 enlarged, separated from the 3rd infralabial by one scale. 

 Infralabials : Three, 3rd largest and in contact with three 

 scales behind. (Fig. 5.) 



Fig. 5. — Cylindrophis maculatus. 

 (Life size.) 



