147 



female is slightly larger. The colour of the eephalo -thorax is 

 dark reddish-brown, that of the legs and palpi bright yellowish- 

 red, and the abdomen is glossy black. The caput is not dis- 

 tinctly elevated, but the spider may be known at once by a 

 small, black, projecting, horn-like prominence directed forwards 

 from the centre of the ocular area. The horn being a little 

 smaller at its extremity than at its base. The palpi arc of 

 tolerable length ; the radial joint has two or three strong 

 apophyses at its extremity ; the digital joint is large, and the 

 palpal organs complex. 



This is a rare spidor. I have found it occasionally at Blox- 

 worth, among moss in the spring season. It has also been met 

 with in some othor parts of England, as woll as in Scotland and 

 North Wales. 



WALCKENAERA UNICORNIS. 



Walckenaera unicornis, Cambr., Ann. and Mag. N. H., Juno, 

 1861. 

 ,, ,, Blachw., Spid. Great Brit, and Irel., p. 



293, pi. xx., fig. 207. 



In size, colours, general form, and structure, this spider is 

 exceedingly like Walckenaera cuspidata, Bl., resembling it also in 

 having a horn-like process between the eyes ; but it may be 

 readily distinguished by the different form of the process. In the 

 present spider this is stouter, paler coloured, more vertical, and 

 rather enlarged, as well as cleft, or bifid, at tho top. The form 

 also of the radial apophysis differs, as also does the structure of 

 the palpal organs, the palpi having, however, a very similar 

 general appearance, and being about the same size. 



This is a rare spider ; found occasionally at Bloxworth at the 

 same seasons as W. cuspidata, and in similar situations. I have 

 also found it atLyndhurst, Hampshire, and have received it from 

 some other parts of England. 



