346 Mr. J. Black wall's Characters of some 



Length, from the anterior part of the cephalothorax to the 

 extremity of the abdomen, /^ths of an inch ; length of the 

 cephalothorax y 1 ^ ; breadth jfy ; breadth of the abdomen y 1 ^ ; 

 length of an anterior leg£; length of a leg of the third 

 pair |b 



Though somewhat smaller, the male resembles the female 

 in colour, and in the relative length of its legs. The second 

 joint of the palpi is enlarged at its anterior extremity; the 

 third and fourth joints are short; the former, which is the 

 larger, is provided with a few long bristles in front of its an- 

 terior extremity, and the latter has an obtuse apophysis on 

 the under side of the upper part; the fifth joint is oval, with a 

 small protuberance or apophysis on the inner side, near its 

 articulation with the fourth joint; it is convex externally, con- 

 cave within, and comprises the sexual organs, which are com- 

 plicated with spiny processes, highly developed, and of a dark 

 red-brown colour. 



Specimens of this spider were obtained in the autumn of 

 1832, under stones and on rails in the township of Crumpsall. 



Tribe, Orbitel^e,! t .,, 

 Genus, Linyphia, J 



Linyphia marginata. 

 In colour and design this spider bears a close resemblance 

 to Ne?*iene marginata, but in external structure it is decidedly 

 a Linyphia. Cephalothorax oval, prominent before, glossy ; 

 sides and posterior part depressed, the former having several 

 slight furrows extending from the carina to the margins, and 

 the latter a large indentation in the medial line. Mandibles 

 strong, conical, armed with two rows of teeth on the inner 

 surface, and inclined towards the pectus, which is heart-shaped. 

 Maxillae robust and somewhat quadrate, having the exterior 

 angle at the extremity curvilinear. Lip short, prominent at 

 the apex, and semicircular. These parts are of a very dark 

 brown colour, the pectus, which is the darkest, being almost 

 black. Eyes unequal in size, disposed in two transverse rows 

 on the anterior part of the cephalothorax; the intermediate 

 eyes of both rows form a trapezoid whose anterior side is con- 

 siderably the shortest, and the lateral ones are placed obliquely 

 in pairs, each pair being seated on a small eminence and 

 geminated; the posterior eyes of the trapezoid are much the 

 largest, and the anterior ones are the smallest of the eight. 

 Legs long and slender, furnished with numerous, fine, erect 

 spines; their colour is yellowish-brown with brownish-black 

 bands. Each tarsus has three claws at its extremity ; the two 

 superior ones are pectinated, and the inferior one is inflected 



