136 ON NEW AND RARE BRITISH ARACHNIDA. 



Collinsia notabilis, sp.n. p. 120. Figs. 10-17. 



Adult male length l-13th of an inch (2 mm). 



The colour of the cephalothorax and fakes is yellow-brown, 

 that of the maxillce rather browner, and the sternum dark 

 brown, convex and furnished thinly with prominent pale hairs. 

 Abdomen black, spotted underneath, irregularly streaked on 

 the sides, and suffused above with a pale hue. Some obscure 

 transverse curved lines may be traced on the hinder half of 

 the upper side ; but all these pale markings are probably 

 untraceable excepting in spirit of wine. The whole abdomen 

 is covered with short curved hairs. The eyes are rather large, 

 those of the hinder row are equidistant from each other, or 

 very nearly so, the interval between the hind-central pair 

 being slightly the greatest, but rather less than an eye's 

 diameter. Those of each lateral pair are seated a little 

 obliquely on a slight tubercular prominence, and the fore 

 laterals appear to be rather larger than those of the hinder 

 row ; the fore-centrals are smallest and almost contiguous 

 to each other. The palpi are of moderate length, the cubital 

 joint shorter than the radial. This latter joint is much larger 

 and spreads out considerably to its fore extremity ; at its fore 

 extremity towards the inner side is a prominent curved, 

 tapering, short-pointed, black thorn-like projection or 

 apophysis, and near it on its outer side is another 

 pointed one, though not so long. The digital joint 

 is of tolerable size, and has its hinder extremity on the 

 upper side produced into a strong obtuse, slightly concave 

 prominence directed backwards. The radial and digital 

 joints are furnished with coarse hairs. The palpal organs 

 are very prominent at their extremity and complex, but their 

 structure can be better understood by reference to the figure 

 in the plate. 



A single example in excellent condition was found and sent 

 to me from Tubney Wood, Berkshire, by Mr. J. Collins, of the 

 University Museum, Oxford. 



