356 



The Philippine Journal of Science 



1917 



Chersydrus granulatus Schneider. 



Common along the coasts of Negros; three specimens in the 

 collection are from Hinigaran. 



Natrix spilogaster Boie. 



Reported from Negros by Boulenger ; I have seen no specimen 

 of this species from Negros. 



Natrix dendxophiops negrosensis subsp. nov. 



Type. — No. 128, E. H. T. collection. Canlaon Volcano, Occi- 

 dental Negros', P. I. E. H. Taylor, collector. 



Description of type. — Rostral fairly large, nearly twice as 

 wide as high, upper edge curved and distinctly visible from 



a c 



Fig. 1. Natrix dendrophiopa negrosenaia aubsp. nov., head ; a, top ; 6, side ; c, underside. 



above; its sutures with nasal little longer than those with 

 internasals; the latter longer than broad, the suture between 

 them equals their sutures with prefrontals, which is less than 

 that with nasals ; prefrontals much broader than long, narrowed 

 on the sides, forming coequal sutures with internasal and frontal, 

 the shortest suture with the supra-ocular; frontal longer than 

 broad, wider, but not as long as supra-oculars, somewhat shield- 

 shaped, longer than its distance from the end of snout, shorter 

 than parietals ; the latter longer than broad, bordered laterally by 

 two elongate temporals, in contact with only one postocular ; nos- 

 tril between two nasals, which differ greatly in shape, but are of 

 nearly the same size; loreal nearly square, touching second and 

 third labials ; one elongate preocular, twice as high as wide, and 



