(552 Mr. Blackwall's Descriptions of new Species of Spiders. 



with them, which is greatly enlarged at the extremity, and of a red-brown 

 colour. 



The male resembles the female in colour and design, but is rather 

 smaller, and the absolute and relative lengths of his legs are different, 

 the anterior legs, which exceed the posterior ones in longitudinal extent, 

 measuring ^th of an inch. Third and fourth joints of the palpi short ; 

 the latter is the stronger, and the former has a long bristle projecting 

 from its extremity, in front ; fifth joint somewhat oval, with a large lobe 

 on the outer side, and a small projection at the upper part, which is 

 notched at the extremity and curved outwards ; it is convex and hairy ex- 

 ternally, concave within, comprising the palpal organs, which are highly 

 developed, complicated in structure, and of a red-brown colour. 



Both sexes of Neriene variegata were obtained, in a state of maturity, in 

 December 1837, under stones on Gallt y Rhyg, a mountain in the vicinity 

 of Llanrwst. 



38. Neriene dubia. Maris cephalo-thorace appendicibusque rufo-brunneis ; 

 abdomine nigricante ; pedibus anterioribus posterioribus paul6 longi- 

 oribus. 



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

 -^ ; breadth of abdomen -^ ; length of an anterior leg ^ ; length of a leg 

 of the third pair -j^. 



Cephalo-thorax oval, convex above, glossy, with a small indentation in the 

 medial line of the posterior region. Mandibles conical, vertical, and 

 armed with a few teeth on the inner surface. Maxillae strong, gibbous 

 near the base, enlarged at the extremity, and slightly inclined towards 

 the lip, which is semicircular and prominent at the tip. Legs and palpi 

 robust. First pair of legs rather the longest, then the fourth, third pair 

 the shortest. These parts are of a red-brown colour, the legs being the 

 palest. The intermediate eyes of both rows form nearly a square, the 

 anterior pair being much the smallest of the eight. Second joint of the 

 palpi curved towards the cephalo-thorax, and clavate ; third and fourth 

 joints short, the latter, which is the stronger, being produced and rounded 



