26 bulletin: museum of comparative zoology. 



thele. The very large anterior median eyes are a conspicuous char- 

 acter in both genera, which may be separated as follows : — 



Anterior median eyes close together, less than their radius apart; 

 spinules present in a group at proximal end of coxae of pedipalps 

 and at least a few on labium; metatarsi I and II scopulate nearly 

 to base Pycnothele, gen. nov. 



Anterior median eyes widely separated, their diameter or more 

 apart; no spinules present on coxae of pedipalps or labium; meta- 

 tarsi I and II scopulate only at distal ends Lycinus Thorell. 



Pycnothele,^ gen. nov. 



Cephalothorax rather long, ovate; pars cephalica low, only moder- 

 ately convex. Fovea thoracica transverse or slightly procurved. 



Eye-tubercle prominent, convex. Anterior row of eyes strongly 

 procurved, the eyes close together, clearly less than radius apart; 

 median eyes very large, much exceeding the others, very close together 

 and even nearer to the lateral ones. Posterior row of ej^es straight 

 or recurved ; posterior lateral eyes not much removed from the anterior 

 lateral eyes; posterior median eyes much the smallest. 



Labium immovably fused with the sternum, a shallow transverse 

 furrow at base; distally truncate; spinules across tip few. 



Coxae of pedipalps long, not at all produced into an apophysis at 

 distal end. Bearing a small patch of spinules at proximal end. 



Tarsi of legs with no inferior claw; superior claws each with a 

 double row of teeth. All tarsi scopulate to base. Metatarsi I and II 

 scopulate to base or nearly so; metatarsi III and IV not at all scopu- 

 late. All legs strongly spined. 



The anterior spinnerets are short, clavate, and contiguous. The 

 posterior or superior spinnerets are short, not more than one third 

 the length of the abdomen ; the second article is shorter than the first, 

 and the third is much shorter than the second, nearly as wide as long, 

 and rounded. 



In the male the tibia of leg I is without trace of spurs at distal end; 

 metatarsus I cyclindrical, slender and straight. 



Type Species. — Pycnothele perditus, sp. nov. 



1 TrvKvos, close, compact, AjjXtj, nipple (spinneret). 



