74 SECOND YARKAND MISSION. 



fore-lateral on its side, being near about one diameter. The four central eyes form very 

 nearly a square whose longitudinal is a little greater than its transverse diameter. 



The legs are long, moderately strong ; their relative length appears to be 4, 2, 1, 3. 

 Their colour is yellow, with the tarsi and metatarsi reddish-brown ; they are clothed with 

 light sandy hairs and red-brown spines, and there is a rather dense, dark, mouse-coloured 

 scopula beneath the metatarsal and tarsal joints, with a strong claw-tuft beneath the terminal 

 tarsal claws. 



The palpi are moderately long, yellow, with the under side of the radial and digital joints 

 dark, blackish red-brown ; and they are armed with spines, bristles, and hairs. 



The falces are moderately long, powerful, straight, perpendicular, of a deep, blackish 

 red-brown colour reflecting somewhat of a violet tint, and clothed with sandy hairs and 

 strong dark bristles. 



The maxillce are of normal form, their colour is dark red-brown, the inner side at the 

 extremity pale yellow. 



The labiu-m is similar to the maxillse in colour, with a pale-yellow apex. 



The sternum is yellow. 



The abdomen is of a dull straw-yellow hue, clothed with sandy-grey and darker hairs. 

 The genital aperture is red-brown and of characteristic form, and has two round corneous 

 lobes or eminences at its hinder extremity. 



Hab Yarkand, between the 21st and 27th of May, 1874. 



Gema-PHILODROMUS, Walck. 



92. PHILODBOMUS CINERASCENS, sp. n. 



Adult male : length rather over 2 lines. 



This spider is nearly allied to Philodromus fallax, "Westr. ; its general hue, however, is 

 of a far more ashy-grey, especially that of the abdomen, whereas P. fallax is of a sandy 

 colour, and the characteristic median marking on the fore half of the upper side is truncated 

 at its hinder extremity instead of pointed, as in the present spider ; besides which the 

 details of the other abdominal markings are different. 



The cephalothorax is roundish oval, narrower before than behind, decreasing in width 

 gradually, the lateral marginal constrictions of the caput being slight. The upper convexity 

 is moderate, the sides roundly sloping, and the median part flattish. This part, forming a 

 broad, longitudinal, median band, is of a greyish sandy colour, the sides being suffused with 

 brown, most deeply and distinctly on each side towards the hinder part of the median band. 

 The lateral margins of the cephalothorax are greyish white, and the height of the clypeus 

 is very nearly equal to half that of the facial space. 



The eyes are small and do not differ greatly in size. The fore-laterals, however, are dis- 

 tinctly the largest. The hinder row is straight, the fore one much the shorter and curved, 

 the curve directed forwards. The interval between the eyes of the hind-central pair is rather 

 greater than that between each and the hind-lateral eye on its side ; and that between the 

 fore-centrals is also greater than that between each and the fore-lateral next to it, this latter 



