430 Rev. 0. P. Cambridge on new Species of Spiders 



found by myself, towards the end of the summer of 18G0, on 

 Bloxworth Heath, Dorsetshire, at the roots of heath, and running 

 under the rooty ledges ^Yhere gravel had been dug out. An 

 immature female was also received, about the same time, from 

 Mr. C. H. Brown, of Southport, Lancashire, where it was cap- 

 tured by himself on the sand-hills. It is a very active spider, 

 and the great length of its legs gives it, when running rapidly, 

 a very peculiar appearance. 



Drassus suhniger. 



Size very small ; general colour plain dark brown ; cephalothorax 

 large, and hut slightly compressed on the sides forwards ; ster- 

 num very large and strong ; eyes nearly uniform in size, those 

 of the lateral pairs very near to each other ; maxillce with no 

 inivard curvature ; digital joint of palpi large ; palpal organs 

 prominent and highly developed. 



Adult male. — Length y'^^ of an inch ; length of cephalotho- 

 rax ^^Q, breadth ^^^ ; relative length of legs 1, 4, 2, 3. 



Cephalothorax large, oval, and but slightly compressed on the 

 sides forwards ; medial line slightly arched longitudinally, and 

 sloping from it to the margins on either side and towards the 

 abdomen. It has a very few pale-coloured hairs, distributed in 

 a single row in the medial line, and in a curved row on each side 

 of the medial line, and a few others near and among the eyes. 

 Colour deepest bistre-brown. 



Eyes eight, in two nearly straight parallel rows on the front 

 of the ccj)halothorax, — if anything, slightly curved from each 

 other, and so bringing the eyes of the lateral pairs nearer toge- 

 ther than those in the centre. The lateral pairs are seated 

 obliquely on a tubercle, and the eyes of each pair are near to 

 each other. The outer eyes of the front row are rather the 

 largest, and the inner ones rather the smallest of the eight; the 

 front row is the shortest of the two, but the eyes in it are equi- 

 distant from each other. 



Legs I'obust, hairy, and furnished with a few spines. Colour 

 brown, with a yellouish-diab tinge, palest at the joints; relative 

 length 1, 4, 2,^3. 



Palpi short, hairy ; hairs longest and most regular on the outer 

 side of the third joint. Colour rather darker than the legs ; 

 radial joint smaller than the cubital, and with a blunt projection 

 at its extremity on the upper side ; digital joint large, oval, 

 convex and hairy outside; palpal organs very prominent, highly 

 developed, and with a projection at their base, from the outer 

 side of which issues a black spine, which is curved across their 

 middle to the inner side. Colour of palpal organs dark yellow- 

 brown. 



