3Ir. Blackwalls Descriptions of new Species of Spiders. 647 



Length of the female xoth of an inch ; length of cephalo-thorax ^; breadtli 

 ^ ; breadth of abdomen 3^ ; length of an anterior leg ^.^ ; length of a leg 

 of the third pair -y^. 



Cephalo-thorax oval, convex above, glossy, with an indentation in the medial 

 line of the posterior region. Mandibles powerfnl, conical, armed with 

 teeth on the inner surface, and inclined towards the sternum, which is 

 heart-shaped. Maxillœ strong, and inclined towards the lip, which is 

 semicircular and prominent at the extremity. Tiiese parts are brownish 

 black. Legs slender, and of a pale reddish brown colour ; first and fourth 

 pairs the longest and equal in length, though, as in numerous other in- 

 stances, the latter limhs do not extend so widely as the former, in conse- 

 quence of being articulated nearer to each other, third pair the shortest. 

 Palpi of a dark greenish colour. Abdomen slender, oviform, projecting 

 a little over the base of the cephalo-thorax; it is tliinly covered with 

 hairs, and brownish black. Plates of the spiracles very dark brown. 



The male resembles the female in colour, and in the relative length 

 of his legs, but his mandibles and maxillœ are tinged with red, and the 

 former have a small process in front, near the articulation of the nail. 

 The second joint of the palpi has a row of hairs, directed forwards, ex- 

 tending along its upper part; third and fourth joints short; the latter, 

 which is much the stronger, is slightly elongated in front, and has a small, 

 pointed projection on the outer side, near its extremity ; iifth joint some- 

 what oval, having on the upper part a bold prominence, indented on the 

 outer side, and a curved, conical protuberance on the inner side ; it is 

 convex and hairy externally, concave within, comprising the palpal organs, 

 which are prominent, highly developed, complicated in structure, and of 

 a dark reddish brown colour. 



Adults of both sexes were captured on rails at Capel Garmon, in Denbigh- 

 shire, and at Crumpsall Hall, near Manchester, in the autumn of 1836. 



34. Neriene parva. Mas brunneus ; abdomine saturatiore. 



Length of the male -^th of an inch ; length of cephalo-thorax 3^^ ; breadth 

 ^; breadth of abdomen ^^j ; length of an anterior legYj; length of a 

 leg of the third pair ^e- 



