and rare British Spiders. 245 



The Juices are moderately long, strong, a little projecting 

 and prominent at their base in front ; their fore surface is fur- 

 nished with strongish prominent bristles, and on their outer 

 sides and towards the extremities they are slightly rugulose ; 

 the fang is short and strong, and on the hinder edge of the 

 groove in which it lies when at rest are a few short strongish 

 teeth. 



The maxilla, labium, and sternum are of the normal form 

 and furnished with hairs and bristles. 



The abdomen is oval, moderately convex above, and projects 

 fairly over the base of the cephalothorax ; it is of a dull mouse- 

 coloured blackish hue, and clothed thinly with hairs : along 

 the middle of the upperside the six pale, elongate, linear 

 spots frequently seen on the abdomen of species of this genus 

 are indistinctly visible : the spinners are short, and of a brown- 

 ish yellow colour, those of the inferior pair being much the 

 longest and strongest ; the genital aperture is large and of 

 a simple but characteristic form. 



A single adult example was found by myself under a stone 

 on Bloxworth Heath in May 1874. 



Drassus delinquens, sp. n. PL VIII. fig. 4. 



Adult female, length 2-| lines. 



The cephalothorax of this very distinct species is of a 

 yellow-brown colour, tinged with dull orange, and clothed spa- 

 ringly with hairs ; the legs and palpi are rather paler, and the 

 falces, maxilla?, labium, and sternum darker, the labium being 

 the darkest. The form of the cephalothorax is of the ordinary 

 type ; the normal grooves and indentations are not strong, 

 though well defined by fine blackish and rather irregular lines 

 which converge towards the thoracic junction ; the height of 

 the clypeus rather exceeds the diameter of one of the fore cen- 

 tral eyes. 



The eyes are of tolerable size, and placed in two transverse, 

 and nearly parallel, curved rows, the convexity of the curve 

 being directed backwards and the hinder row being the longest: 

 those of the hind central pair are oval in form, obliquely op- 

 posed to each other, and almost contiguous ; each is separated 

 from the hind lateral on its side by an interval equal to its 

 own longest diameter ; those of each lateral pair are separated 

 by an interval slightly less than the diameter of the hinder eye, 

 which is smaller than the fore one ; those of the fore central 

 pair (the smallest of the eight) are about an eye's diameter 

 distant from each other, and each is very nearly contiguous to 

 the fore lateral eye on its side. 



