XII, D. 6 Taylor: Snakes and Lizards of Negros 357 



wider at the top than at the bottom, semidivided; three small 

 postoculars (four on right side) ; temporals 2 + 3; fourth, fifth, 

 and sixth labials entering eye; mental broadly triangular; ten 

 lower labials, sixth and seventh largest; first five in contact 

 with the first chin shield, which is noticeably shorter that the 

 second. Nineteen rows of scales; the outer largest, faintly 

 keeled, all the others strongly keeled; scales with two apical 

 pits easily discernible; anal divided; ventrals, 164; subcaudals, 

 97. Eye very large. 



Color in life- — Reddish brown to olive, with a median series 

 of dark, more or less distinct, spots or bars at intervals of 0.5 

 centimeter; on the sides and as continuations of the dark bars 

 is a series of dark spots continuous vertically with the others. 

 Below pinkish white with a series of small, more or less regular, 

 black spots on each ventral and subcaudal. Bars on the neck 

 very much wider than elsewhere. Top of head brownish olive. 

 Labials brownish white with dark areas between the first three 

 labials; a distinct black line runs from behind eye to posterior 

 part of eighth supralabial, where it turns and continues down- 

 ward to the first ventrals. Scales on the head minutely edged 

 with black. 



Measurements of the type of Natrix dendrophiops negrosensis subsp. notf. 



mm. 



Length 730 



Snout to vent 526 



Vent to tip of tail 204 



Width of head 11 



Length of head 20 



Diameter of ej^e 5 



Variation. — The postoculars show a tendency to increase to 

 four; one specimen has the third, fourth, and fifth labials 

 entering the eye, and a second specimen shows four labials enter- 

 ing on the right side. 



Remarks. — The following characteristics seem to warrant the 

 separation of this subspecies from typical Natrix dendrophiops. 

 There is a tendency to increase the number of postoculars from 

 8 to 4. There is only a single preocular. Specimens of N. den- 

 drophiops, from northern Mindanao, have 2 distinct preoculars ;^ 

 there is an average of 10 more ventrals and there are constantly 

 19 instead of 17 rows of scales. The eye is somewhat smaller, 

 and the loreal is lower. 



'Only one in the type, see Giinther, Ann & Mag. Nat. Hist. (1883), V, 

 11, 136, fig. 



