1883.] REV. O. p. CAiMBRIUGE ON NEW SPIDERS. 361 



Nesis, g. n. (nom. propr.). 



Allied to Dicea, Thor. 



Cephalothorax as long as broad, truncated in front, constricted 

 laterally at the margins of the caput ; upper surface flat and level. 



Eyes small and not greatly different in size (though the four centrals 

 are distinctly smallest), seated on separate tubercles, of a greyish hue, 

 and occupying the whole width of the fore part of the caput. Height 

 of clypeus less than the diameter of one of the fore-central eyes. 

 The position of the eyes is much the same as in Xysticus. 



Leys moderate in length and strength ; those of the first and 

 second pairs mucli the longest ; the second pair slightly exceed 

 the first, and the third pair rather shorter than the fourth. They 

 are armed with a few regularly disposed slender spines beneath the 

 tibiae and metatarsi of the first and second pairs ; beneath the tarsal 

 claws is a small claw-tuft. 



Falces moderate in length and strength, subconical, and perpen- 

 dicular. 



MaxillcB long, enlarged at the extremities, where they are ob- 

 liquely and slightly roundly truncated on the outer side, and inclined 

 over the labium. 



Labium rather more than half the length of the maxillse, con- 

 stricted laterally near the middle, and somewhat pointed at the 

 apex. 



Sternum oval, truncated before and pointed behind. 



Abdomen of a somewhat oblong form, truncated before and pointed 

 behind, and very flat. 



Nesis nigropunctattjs, sp. n. (Plate XXXVII. fig. 6.) 



Adult male, length 2 lines. 



The cephalothorax, legs, and palpi are of a brownish orange- 

 yellow hue ; the former with a fine dark marginal line ; the whole 

 of the underside, including the abdomen both above and below, 

 being paler and duller-coloured. 



The eyes of the anterior row (which is the shortest and least 

 curved) are almost equally separated from each other ; the central 

 pair of the posterior row are nearer together than each is to the 

 lateral on its side ; the four central eyes form a square, whose ante- 

 rior side is slightly the shortest, and its posterior side distinctly the 

 longest. The tubercles supporting the lateral eyes are strong and 

 of a subconical form. 



The palpi are short ; the radial joint is shorter than the cubital, 

 and has its extremity on the outer side produced into a strong apo- 

 physis, whose extremity is pointed, and of a bent or twisted and 

 slightly corkscrew form ; the digital joint is large, nearly round, 

 with a rather abrupt point at its fore extremity. The palpal organs 

 are simple, and encircled with a long, strong, black, fine-pointed 

 spine. 



The abdomen has on the margins of its upperside (chiefly on tlie 

 hinder part) a single row of small but distinct black spots. Spinners 

 small J those of the inferior pair strongest. 



