Arachnida. 



7067 



sometimes the point is blunted off ; the foremost corner ends 

 with a black slightly curved spine, which projects obliquely 

 towards the outer side ; underneath the point of this spine, at 

 the extremity of the outer side of the radial joint, is a stoutish 

 blunt projection (which, with the spine, forms a kind of crescent), 

 and on the inner side there is a slight dark-pointed one. The 

 digital joint is oval, of moderate size, and slightly darker than 

 the rest of the palpus. Palpal organs highly developed, promi- 

 nent, and not very complicated in structure ; at their extremity, 

 just underneath the end of the digital joint, one of their pro- 

 cesses ends with a small dark brown spiny curved rim with 

 two, prominent points. 



Maxilla? slightly enlarged at the extremity on the inner side, ob- 

 liquely truncated on the outer side, and strongly inclined 

 towards the labium. 



Labium short and semicircular. 



Sternum broad, convex and heart-shaped. 



Abdomen oviform, projecting considerably over the base of the 

 cephalothorax. Its colour is yellow-brown, and it is sparingly 

 clothed with yellowish hairs. On the upper side towards the 

 spinners are several obtusely angular, pale, transverse lines. The 

 female is larger than the male, and wants the elevation on the 

 cephalothorax, but resembles it in other respects. 



I discovered adult males and females of this species under dry sea- 

 weed on the shore at Southport, Lancashire ; and at the roots of 

 dwarf willows on the sand-hills at the same place, in the summer of 

 1859. Mr. Blackwall tells me that he received a male of this species 

 from Scotland some years ago, but that the specimen was accidentally 

 lost before he could make a description of it ; and that Mr. Meade 

 captured an adult male of it in Ireland, in June, 1861. I have since 

 writing the above examined Mr. Meade's specimen, which is certainly 

 of this species, but is a much darker-coloured spider, the cephalo- 

 thorax being dark reddish yellow-brown, and the abdomen nearly 

 black : it was captured in the county of Kerry. 



Walcrenaera borealis. 



Cephalothorax shining brownish black. Frontal elevation large, 

 obtuse and sloping towards the frontal margin ; central eyes of 

 the front row largest of the eight, and not touching each other. 

 Abdomen dark brown-black. Legs and palpi yellowish red, the 



