Mr. Blackwall's Descriptions of new Species of Spiders. 657 



an oval form, and greatly elongated before, overlapping the base of the 

 fifth joint, which is somewhat oval, with a bold, pointed projection at the 

 superior part, on the inner side, and a prominent lobe on the outer side ; 

 it is convex and hairy externally, concave within, comprising the palpal 

 organs ; they are depressed, very highly developed, and remarkably com- 

 plicated in structure, having a strong, curved, corneous process on the 

 outer side of the superior part, which has an obtuse protuberance on 

 its upper side, and a pair of exceedingly long, filiform, black spines of 

 unequal thickness, enveloped in a transparent membrane, curved twice 

 into a circle measuring about reth of an inch in diameter. These organs 

 are of a red-brown colour. 



This spider spins an extensive, delicate, horizontal sheet of web, supported 

 above by fine lines connected with it and with each other at various angles, in 

 the corners of walls, both in and out of doors, under hollow banks, and in de- 

 pressions in the trunks of large trees. On the under side of this web it takes 

 its station in an inverted position, and watches for its prey. In many parts of 

 Denbighshire and Caernarvonshire it is a common species, and I have been 

 favoured with specimens from the north of Lancashire by Miss Ellen Clayton 

 of Church Town. 



42. Linyphia vivax. Cephalo-thorace flavescenti-brunneo, fasciis tribus nigris 

 quarum intermedia antice bifida ; mandibulis maxillisque rufescenti-, labio 

 sternoque saturate brunneis ; pedibus palpisque rufescenti-brunneis satu- 

 ratiiis fasciatis ; abdomine flavescenti-brunneo albo-punctato, serie medi- 

 ana linearum transversarum angularium nigricantium ad extremitates 

 dilatatarum, fasciis duabus longitudinalibus nigricantibus ad utrumque 

 latus, alteraque lata mediana infra. 



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

 1^; breadth of abdomen ^; length of an anterior leg | ; length of a leg 

 of the third pair ^. 



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

 medial line of the posterior region ; it is of a yellowish brown colour, 

 with an irregular, longitudinal, blackish band on each side, and a finer 

 one of the same hue, which is bifid in front, extending along the middle. 



