On the Systematic Arrangement of British Spiders. 15 



V. lancifolia, if specimens are to be trusted, and that is certainly 

 the plant primarily intended by Smith. Continental authors do 

 not show any such uniformity, for Smith's name has been applied 

 to V. praterisis ( V. pumiia, Till., not of Hook, and Am., which is 

 the true V. canina, Linn.), V. stagnina, and V. lancifolia. 



III. — A Catalogue of British Spiders, including remarks on their 

 Structure, Functions, (Economy and Systematic Arrangement. 

 By John Blackwall, F.L.S. 



[Continued from vol. viii. p. 450.] 



107. Linyphia minuta. 



Limjphia minuta, Blackw. Lond. and Edinb. Phil. Mag. Third Series, 



toI. iii. p. 191 : Research, in Zool. p. 384. 

 domestica,V>~ider, Museum Senckenb. B. i. p. 265. taf. 18. fig. 1 ; 



Walck. Hist. Nat. des Insect. Apt. t. ii. p. 255. 



The interior of buildings, shrubs trained against walls, crevices 

 in the bark of old trees, and lichens growing upon their trunks 

 and branches are the haunts frequented by this common spider, 

 which is widely distributed in England and Wales. In September 

 the female constructs several subglobose cocoons of white silk of 

 a slight texture, the largest of which measures about J-th of an 

 inch in diameter, and contains from 30 to 40 spherical eggs of a 

 yellowish white colour. The cocoons are generally attached to 

 objects situated near the snare. 



108. Linyphia cauta. 



Linyphia cauta, Blackw. Linn. Trans, vol. xviii. p. 655 ; Walck. 

 Hist. Nat. des Insect. Apt. t. iv. p. 499. 



Angles of walls, overhanging banks, and depressions in the 

 trunks of large trees are the situations in which Linyphia cauta 

 fabricates its extensive snare. Though rarely seen, in conse- 

 quence of the habit of remaining in its retreat during the day, 

 yet it is rather abundant in many parts of England and "V\ ales. 



The Linyphia thoracica of M. Wider (Museum Senckenbergi- 

 anum, B. i. p. 2G1. taf. 17. fig. 10) appears to be nearly allied to 

 this species, but as no description or figure is given of the male, 

 I am unable to determine whether they are identical or not. 



109. Linyphia rivax. 



Lim/ph'ri virax, Blackw. Linn. Trans, vol. xviii. p. 657; Walck. IIi>t. 

 Nat. des Insect. Apt. t. iv. p. 499. 



Both sexes of this spider, which bears a striking resemblance 



