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robust form, and almost uniform, rich, deep black-brown colour, 

 slightly marbled with, yellow-red, and by the- structure of the radial 

 joint of the palpus. There is but little trace of the longitu- 

 dinal band on the cephalo-thorax ; but the central marking bohind 

 the eyes is traceable by a broken marginal reddish-yellow lino. 

 It ia also more marbled with yellow-red than the sides of the 

 cephalo-thorax, and is sometimes divided longitudinally by a 

 very deep black-brown stripe. 



The legs are strong, and moderately long. The femoral and 

 genual joints are of tho same colour as the sides of the cephalo- 

 thorax, though rathor moro marbled with yellow and yellow- 

 red ; the tibice, tarsi, and metatarsi are much paler. 



The palpi are similar in their general form and appearance to 

 others of this genus, and are like the legs in colour ; the 

 radial joint has three apophyses at its extremity — two on the 

 outer side and ono underneath ; tho latter is strong, prominent, 

 obtuse at its extremity, and curved. The upper one of the 

 other two is stronger and longer than the lower one, both boing 

 somowhat pointed. The digital joint is rather large, and the 

 palpal organs are neither very prominent nor complox. 



The abdomen, which (as well as the cephalo-thorax) is covered 

 with short bristles, is short, broad, and truncate before, and 

 broader behind than in front. It projects considerably over the 

 base of tho cephalo-thorax, to which its general colouring is also 

 very similar. The dentated band on the upper sido is gonerally 

 almost obsolete, or only traceable by some small, scattered, 

 yellowish- white spots, indicating the different donticulations ; 

 the usual pale marginal border of the upper side is also repre- 

 sented only by a few similar spots round that part ; now and 

 thon the dentated band is also traceable by its being of a slightly 

 paler hue than the rest of the surface. 



This is an exceedingly rare spider ; I have met with only ono 

 oxamplo during twenty-five years — an adult male, sunning 

 itself on a bare patch of sandy heath, at Bloxworth, in the 

 month of May, 1854. I am unacquainted with tho female; 

 according to M. Simon, however (Araehn,, do France, torn II. 



