1902.] NATURAL SCIENCES OF PHILADELPHIA. 179 



Dryocalamus trilineatus sp. nov. 



Rostral barely visible from above ; iuternasals much shorter than 

 prefrontals; frontal longer than the snout, shorter than parietals; 

 loreal long and entering orbit ; no preocular, the supraocular ex- 

 tending down to meet the loreal ; one narrow postocular ; temporals 

 1 (2)-2; seven upper labials, third and fourth in the orbit; pos- 

 terior chin shields short. Scales in 15 rows. Ventrals 228; anal 

 entire; subcaudals 87 pairs. 



Total length 285 mm. (tail 70). 



Olive-brown above, with a narrow greenish-yellow vertebral 

 stripe, and another on each side, on the fifth roAV of scales. Top 

 of head olive-brown. Ventrals, outer row of scales and both 

 series of labials of the same color as the light stripes. 



Type specimen. No. 5,825 from Baram district, collected by 

 Drs. Furness and Hiller. 



This species much resembles Dryocalamus tristrigatus Gimth. , of 

 unknown locality, but compared with Mr. Boulenger's plate^ the 

 head is flatter and the upper labials less elevated, the rostral is 

 smaller, there is but one postocular, and the color appears to be 

 different. 



Xenelaphis hexagonotus (Cantor). 



One, Baram ; collected by Charles Hose. 



Coluber oxycephalus Boie. 



Three, Kapuas river ; one, Baram ; one, Borneo. 



Coluber melanurus Schl. 



One, Kuching; three, Baram, collected by Charles Hose. 



No. 5,810 has the preocular divided '^n one side, and 5,814 has 

 the anterior ends of the first row of temporals cut off, forming an 

 extra series of small temporals. 

 Dendrophis pictus (Gm.). 



Seventeen specimens ; Kuching, Kapuas river, Baram, Sarawak. 



No. 2,374, from Baram, 780 mm. long (tail 250),'2ventrals l()!l, 

 subcaudals 121, is bluish-black above witli the lateral strijjcs very 

 indistinct; belly yellow, mucli marked with blue posteriorly. No. 

 5,691 has the loreal liorizoii tally divided on both sides; tem- 

 porals 1-2. 



'Cat. of Snakes in Brit. Mus., I, p. 372, PI. XXV, fig. 3. 



