12 E. W. Gates — On the Species of Tliclyplionus inhabiting [No. 1, 



sharp tooth on the lower surface ; fourth with an indistinct spine on the 

 lower edge and with a long apophysis on the interior angle. This 

 apophysis is about the same length as the joint to which it is attached, 

 perfectly cylindrical for three-quarters of the length, and suddenly 

 widened out on the terminal quarter of its length to a width half as 

 wide again as the cylindrical portion and terminating in a single recurved 

 spine (Fig. 12) ; fifth joint feeble, narrower than the fourth, the interior 

 edge toothed and furnished with hairs, the exterior edge of the fixed 

 finger serrated ; movable finger curved, sharply pointed, furnished 

 with hairs and serrated below. Cephalothorax densely granulated, except 

 on a portion between the lateral and central eyes, which is smooth and 

 tumid but not ridged. First lower abdominal segment largo, broadly 

 sinuated behind, but not grooved. 



Structure, ? . Differs from the male in the structure of the cheli- 

 ceres and first lower abdominal segment. Second joint of cheliceres 

 with five distinct teeth, one on the middle of the anterior edge and 

 four on the lateral, the foremost, situated at the angle of the two edges, 

 being twice as largo as the others, which are all of equal size, two small 

 spines on the lower surface ; third joint with a small tooth on the 

 interior edge and one below ; fourth joint with a short and sharply 

 triangular apophysis, both edges serrated ; fifth joint as in the male. 



The first lower abdominal segment is longer and pointed posteriorly. 



I have much pleasure in naming this species after Dr. John Ander- 

 son, the late Superintendent of the Indian Museum, who discovei'od it in 

 Upper Burma. The male was taken in the second defile of the Irawadi 

 river and the female on Pudeepyoo mountain. Both are preserved in 

 the Indian Museum. 



The only female of this species is much mutilated, but I have de- 

 scribed it to the best of my power. I regret, however, to have to leave it 

 out of my key ; when writing which I had not access to the specimen. 



5. THELYPnONUS WOOD-MASONI, n. sp., PI. II, Fig. 10. 



(? . Cheliceres and cephalothorax pitchy-black ; abdomen black 

 tinged with red ; legs blood-red ; tail like the legs ; below, first joint of 

 cheliceres dark reddish-brown ; legs and sternum with first abdominal 

 segment blood-red, remainder of abdomen darker red. 



2 . Similar to the male in colour. 



Immature animal. Cheliceres coffee-brown, cephalothorax and 

 abdomen dull rufous, the legs dull reddish vandyke-brown. 

 Length, male 1 inch ; female, "95. 



Structure, S . Cheliceres very sparingly punctured and nearly 

 smooth all over, the exterior angle of the second joint ti'ansvorsely 



