Mr. J. Blackwall on new species o/ Aran ei (lea. 97 



are of a yellowish-brown colour, with dark brown streaks and 

 annuli. The palpi are short, and resemble the legs in colour, 

 that of the digital joint being dark brown. 



Four specimens of this interesting spider, taken by the Rev. 

 0. P. Cambridge among heath at Lyndhurst, in the New Forest, 

 in September 1858, and forwarded to me by Mr. R. H. Meade, 

 were all immature ; independently, however, of this circumstance, 

 the species presents such remarkable differences in external struc- 

 ture from the spiders belonging to the several genera included 

 in the family Ciniflonid<2f that I have been induced to found a 

 new genus upon it. 



Family Agelenid^e. 



Genus Agelena, Walck. 



Agelena gracilipes. 



Length of the male y'^th of an inch ; length of the cephalo- 

 thorax -^-^ ; breadth ^V ; breadth of the abdomen J^ ; length of 

 a posterior leg ^^^ ; length of a leg of the third pair -f^. 



The legs are long, slender, provided with hairs and sessile 

 spines, two parallel rows of the latter occurring on the inferior 

 surface of the tibise and metatarsi of the first and second pairs, 

 and are of a dull yellow colour, with the exception of the genual 

 joint, tibia, and metatarsus of the first and second pairs, which 

 have a very dark brown hue, the genual joint being the palest ; 

 each tarsus is terminated by two curved, pectinated claws. The 

 palpi have a dull yellow hue ; the cubital and radial joints are 

 short, and the latter projects a brown, pointed apophysis from 

 its extremity, on the outer side ; the digital joint is oval, convex 

 and hairy externally, concave within, comprising the palpal 

 organs, which are moderately developed, rather prominent, not 

 very complicated in structure, with a small, curved, black spine 

 at their extremity, and are of a dull yellow colour tinged with 

 brown. The cephalothorax is convex, glossy, slightly com- 

 pressed before, rounded and depressed on the sides, which are 

 marked with furrows converging towards a slight, narrow in- 

 dentation in the medial line ; it is of a dark brown colour tinged 

 with dull yellow, especially in the medial line, the lateral mar- 

 gins being the darkest. The eyes are disposed on the anterior 

 part of the cephalothorax in two transverse curved rows whose 

 convexity is directed backwards ; the intermediate eyes of both 

 rows form a trapezoid whose shortest side is before, those of the 

 anterior row, which is rather the less curved, being the smallest 

 of the eight. The falces are conical and vertical : the maxillae 

 are short, convex near the base, rounded at the extremity, and 

 slightly inclined towards the lip ; and the sternum is heart- 



Ann.^ Mag. N. Hist, Ser. 3. Fo/.iii. 7 



