Arachnida. 



7965 



the largest of the eight, and each of these last is further from 

 the central one on its side than the central ones are from each 

 other. The side pairs of eyes are seated on a tubercle, but not 

 placed very obliquely. 



Legs moderate in length, clothed with hairs, and of a pale yellowish 

 brown colour; the margins of the joints slightly edged with 

 dark brown, and occasionally there is a tinge of red, especially 

 on the tarsal and metatarsal joints. Relative length, 4, 1, 2, 3. 



Palpi shortish ; same colour as the legs, except the radial joint, 

 which has a bright reddish tinge, especially at its extremity. 

 The cubital and radial joints are both short, the latter is the 

 shortest, and is slightly prominent on the inner side under- 

 neath ; it is rather protuberant on the upper side, with a tuft 

 or fringe of straight bristly black hairs directed outwards, and 

 has at its extremity in front a strong elongation projecting 

 outwards over the base of the digital joint, and ending in the 

 shape of a crescent, the upper limb of which is the longer and 

 stronger ; this limb is of a curved scimitar form, aud both are 

 of a deep red-brown colour. The palpal organs are highly 

 developed, prominent and complicated in structure ; they have 

 a large semitransparent membranous process at their extremity, 

 near which, on the outer side, a long black spine curves round 

 backwards in a double coil. 



Falces small, very slightly divergent at the extremities, a little in- 

 clined towards the sternum, and rather darker coloured than 

 the cephalothorax. 



Maxillae considerably enlarged at the base, obliquely truncated on 

 the outer sides, slightly rounded at the extremity, and strongly 

 inclined towards the labium. They are lighter coloured than 

 the falces. 



Sternum broad, convex and heart-shaped, and with the labium, 

 which is semicircular, of a brownish black colour. 



Abdomen black, very sparingly clothed with short hairs; it has 

 four small depressed dots, nearly in the form of a square, on 

 the upper side towards the cephalothorax, over which the 

 abdomen projects considerably. 



The adult female resembles the male, but is rather larger, and the 

 transverse dip on the cephalothorax is not so strong. 



Adults of both sexes of this spider were captured by myself in the 

 spring and autumn of 1861, among lichens and in crevices of the 



