Mr. Blackwall's Descriptions of new Species of Spiders. 605 



short, the latter having a large apophysis at its anterior extremity, which 

 tapers to a bifid termination curved in front of the fifth joint, a strong 

 obtuse process occurring within the curve, near its base ; fifth joint oval, 

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

 sexual organs, which are highly developed, complicated in structure, 

 with a prominent, obtuse, corneous process near their extremity, and a 

 curved, pointed spine, directed outwards, extending nearly to the ter- 

 mination of the joint ; their colour is very dark brown. 



This species usually occupies an oval cell of compact, white silk, which it 

 spins on the inferior surface of leaves and of liverwort growing on trees in the 

 wooded districts of Denbighshire and Caernarvonshire. It leaps with agility. 



2. Clubiona fucata. Cephalo-thorace antic^ rufescenti-, lateribus postic^que 

 viridescenti-, linea marginali saturat^-brunneis ; mandibulis maxillis labio- 

 que rufescenti-brunneis ; sterno flavescenti-brunneo, lateribus rufescenti- 

 brunneo maculatis ; seriei anterioris oculis intermediis omnium minimis ; 

 pedibus flavescenti-brunneis, pari 4to longissimo, dein 2do, Imo Stioque 

 ferfe sequalibus ; abdomine flavescenti-brunneo, antic^ fasciS, mediant, pos- 

 tic^ maculis triangularibus, ad latera fascia interrupta rufescenti-brunneis 

 notato. 



Length of the female i^ths of an inch ; length of cephalo-thorax -^ ; breadth 

 -^ ; breadth of abdomen yj ; length of a posterior leg \ ; length of a leg 

 of the third pair ^. 



Cephalo-thorax oval, convex above, thinly covered with hairs, glossy, with a 

 narrow indentation in the medial line of the posterior region ; anterior 

 part reddish brown; sides and posterior part greenish brown, with a fine, 

 dark brown line on the margins. Mandibles powerful, conical, rather 

 prominent. Maxillae long, straight, enlarged where the palpi are in- 

 serted, and at the extremity, which is rounded. Lip longer than broad, 

 nearly quadrangular. These parts are of a reddish brown colour. Ster- 

 num oval, glossy, with small eminences on the sides, opposite to the 

 articulation of the legs ; it is yellowish brown, with dark reddish brown 

 spots on the margins. The eyes, which are seated on black spots, are 

 disposed in two transverse, parallel rows on the fore-part of the cephalo- 



4 K 2 



