LIST OF SNAKES FROM THE ISLAND OF POLILLO. 

 List of specimens of Trimerisurus haliens sp. nov. 



215 

















„• 











gj2 



o» 















i 



B 



«3 







S 



S.S 



.5 



Museum. 



a 



3 



Sex. 



Locality. 



When 

 collected. 



Collector. 



B 



5 



1 



<H 



1 



> 



3 



^ o 



Si 



65^ 















mm.. 



mm. 















Bureau of 



763 



Female _ 



Polillo.. 



Oct. 1, 



Canoni- 



0.810 



0.110 



21 



1 



181 



55 



10 



10 



Science. 









1909. 



zado. 



















Do 



764 



....do... 



....do... 



....do.-.. 



.-dO- 



.830 



.120 



21 





181 



59 



13 



11 



Do .... 



765 



-___do — 



.___dO-_. 



— -do-— 



....do... 



.970 



.140 



21 





175 



54 



10 



10 



Do ..- 



766 



-...do... 



....do... 



....do.... 



....do — 



.730 



.090 



21 





177 



57 



11 



10 



Do 



767 



....do... 



....do... 



..-.do...- 



-— do — 



.650 



.090 



21 





178 



52 



11 



11 



Do 



768 



....do-. 



__.-do__- 



..-do..- 



...-do... 



1.100 



.140 



21 





181 



58 



13 



10 



Do .... 



769 



....do ... 



-..-do... 



....do...- 



.— do — 



.900 



.110 



21 





181 



53 



11 



10 



Do 



Do 



770 

 771 



Male 



....do... 



....do.... 



....do 



.740 

 .820 



.100 

 .110 



21 

 21 





170 

 182 



68 

 54 



10 

 10 



10 

 10 



Female. 



do 



-—do.-.. 



-—do 



Do .... 



772 



(?) 



-—do 



— -do — 



-—do 



1.040 



.130 



21 





179 



55 



12 



10 



The specimens were all collected along the banks of streams or in 

 damp localities. 



This snake seems to leave the ground very rarely. 'When the natives 

 of the islands go at night along the streams to catch mudfish by torch- 

 light, the snakes are commonly seen near the edge of the water, and the 

 fishermen say that they, are there for the same purpose as themselves, 

 and for this reason call the snake manda-daldg , which, literally trans- 

 lated, means "the fisher of the dalag (or mud-fish)." Sr. Cesario Cano- 

 nizado captured one specimen which had buried most of its body in the 

 sand close to the water's edge. The place where the snake was lying 

 was partly covered with water, while a few inches away was deeper water 

 in which numerous small fish were swimming about for which the snake 

 appeared to be lying in wait. 



On another occasion Canonizado noticed a commotion in the rice near 

 the edge of a paddy. The disturbance was caused by a struggle between 

 a large Varanus and a snake of this species. On the approach of Canoni- 

 zado the Varanus ran away, so he could not see which was the attack- 

 ing party. The snake was easily lassoed, for this species seems to be 

 much more inclined to fight than to retreat from men. When the fisher- 

 men, in their night fishing, walk along the water's edge holding their 

 torches ahead of them the snakes frequently strike at the lights, and 

 occasionally the fishermen are bitten vidth fatal results. 



The stomach of No. 764 contained an entire frog. In the intestine 

 of No. 763 were found a few scales, probably of a fish. The intestine of' 

 No. 765 contained a large ball of hair of a rat. 



