Mr. Blackwall's Descriptions of new Species oj Spiders. 641 



highly developed, coinplicated in structure, with a curved, pointed, cor- 

 neous spine at the extremity, and are of a reddish-brown colour. Abdo- 

 men oviform, convex above, projecting- over the base of the cephalo-t bo- 

 rax ; it is thinly clad with hairs, glossy and brownish black. Plates of 

 the spiracles brown. 



A specimen of this species, captured in the neighbourhood of Manchester, 

 was received from T. Glover, Esq., in June 1838 ; and in the following month 

 another specimen was taken near Llanrwst. Both individuals were adult 

 males. 



27. lï\dchenaëra nemoralis. Mai'is cephalo-thorace mandibulis maxillis labio 

 sterno pedibus palpisque brunneis ; abdomine nigricante ; cephalo-tho- 

 race anticè elevato obtuso transverse bipartito ; pedum pari 4to Imo 

 longiore. 



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

 -^ ; breadth of abdomen 3^ ; length of a posterior leg ^^3 ; length of a 

 leg of the third pair ^--. 



There is no indentation in the medial line of the posterior region of the cephalo- 

 thorax ; the anterior part is elevated, but obtuse, with a transverse groove 

 in front, which divides it into two segments. One pair of eyes is situated 

 on the upper segment, near its anterior margin, and the rest are seated on 

 the lower segment, one pair being placed on each side, and the other in 

 front ; the eyes of the kist pair are the smallest of the eight, and, with 

 those on the upper segment, form a long trapezoid, whose shortest side 

 is before. Mandibles conical, armed with teeth on the inner surface, and 

 inclined towards the sternum, which is broad, convex and heart-shaped. 

 These parts, with the maxilhi?, lip, legs, and palpi, are brown, the legs 

 being the palest, and the lip, anterior part of the cephalo-thorax, and ter- 

 minal joint of the palpi the darkest. Fourth pair of legs the longest, then 

 the first, third pair the shortest. The fourth joint of the palpi, which is 

 shorter than the third, projects three apophyses from its extremity; the 

 smallest is situated underneath, the largest in front, and the third, of 

 intermediate size, on the outer side ; fifth joint oval, convex and hairy 

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



