218 



Mr. R. I. Pocock on 



its distal half externally with about six denticles, of which 

 the first is larger and quadrate, and internally with one 

 denticle; of the six cheek-teeth visible from the outer side 

 the first and second are long and strong, twice as long as 

 the others, which are subconical ; lower jaw armed with only 



a. Left mandible of Dcesia laminata ; outer side. b. Flagellura of the 

 same, its posterior end uppermost, its dorsal edge to the right. 



two widely separated largish teeth, one near the base, the 

 other midway between it and the terminal fang. Flagellum 

 posteriorly narrow and pointed, gradually tapering ; its basal 

 portion furnished dorsally and anteriorly with a laminate 

 expansion, which is fringed, as shown in the annexed figure (6). 



Palp with penultimate segment armed beneath with three 

 external and four internal longish spines. 



Abdominal sterna normally hairy. 



Measurements in millimetres. — Total length of body 13, 

 palp 17-5, third leg 11-5, fourth leg 23. 



Log. Dthala. 



Distinguishable from all known species by the form of the 

 flagellum and the dentition of the jaws. 



DcEsia sahulosa, sp. n. 

 $ . — Colour. Head, mandibles, and legs almost a uniform 

 yellowish brown, only slightly darker here and there where 

 infuscation commonly occurs ; palp with the penultimate 

 segment deeply infuscate, nearly black, contrasting forcibly 

 with the pale colour of the two segments at either end of it. 



Falp entirely without spines. 



Mandible : first tooth of upper jaw much smaller than 

 second, which is subequal to the fourth, the third or inter- 

 mediate tooth nearer to the fourth than to the second; lower jaw 

 with its principal teeth widely separated, one intermediate 

 tooth nearer the second than the first tooth. 



Measurements in millimetres. — Total length 13; width of 



