TRAP-DOOR SPIDERS. 2?li 



The palpi are longer than in Manderstjernm. The 

 radial joints have, at the upper fore extremity of each, 

 five spines, three in front in a transverse line, and two 

 immediately behind them. The palpal bulb is more 

 globular, and the spiny production, which is not very 

 long, springs from it more suddenly, and is stronglij 

 sinuous, its sharp tapering point directed outwards. 

 The strong sinuosity of this part distinguislies it at 

 once both from N. ManderstjeTna and all other known 

 European males with a simple point to the palpal 

 organs. 



The legs are longish and strong; their relative 

 length 4-1, 3, 2 (male); 4-1, 2, 3 (female); they are 

 furnished with hairs, bristles, and spines. These do 

 not appear to call for special notice, except that each 

 genual joint of those of the third pair has two spines 

 on its outer side in both sexes. 



The superior tarsal claws are denticulated, but the 

 denticulations differ in number and strengtli, not only 

 in the two sexes and in the different legs, but in some 

 instances in the two superior claws of the same leg. 

 The denticulations seemed to be more numerous in 

 the female than in the male. 



The abdomen is elongate oval, and of a straw yellow 

 colour. In the male the fore part of the upper side 

 is irregularly black brown, followed by an irregular 

 somewhat broken longitudinal central bar, and some 

 broken oblique lines and portions of chevrons. In the 

 female the fore part is less densely blackish, the 

 central longitudinal line is obscure, but the oblique 

 lateral lines are more distinct and less broken, but 

 none are quite united so as to form chevrons, though 

 the two or three nearest to the spinners almost do so. 



