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XV. A Catalogue of Spiders either not previously recorded or little known as 

 indigenous to Great Britain, with Remarks on their Habits and Economy. 

 By John Blackwall, Esq., F.L.S., 8$c. 



Read April 5th, and April 19th, 1842. 



WlTH a few exceptions, of sufficient importance to warrant their introduc- 

 tion, the spiders comprised in the following catalogue hav r e never before been 

 recognised as British species. In addition to any interest which may be de- 

 rived from this circumstance, numerous facts have been supplied relative to 

 their structure, instincts, economy, and haunts, with occasional remarks upon 

 their nomenclature and systematic arrangement. 



The kind assistance received from the cooperation of friends in collecting 

 materials for this paper, I have endeavoured to acknowledge in an appropriate 

 manner as suitable occasions presented themselves ; but as the information 

 communicated in it has resulted, for the most part, from my own researches, 

 I must be considered responsible for its accuracy. 



Should the observations recorded in these pages contribute in any degree to 

 facilitate the acquisition of that desideratum in the zoology of Great Britain, 

 a comprehensive history of our native spiders adapted to the present state of 

 arachnological science, the principal purpose which they were intended to sub- 

 serve will be accomplished. 



Class Arachnida. 



Order Araneidea. 



Tribe Octonoculina. 



Family Drassid^e. 



Genus Drassus, Walch. 



1. Drassus sericeus. 



Drassus sericeus. Walck. Hist. Nat. des Insect. Apt., t. i. p. 619. Koch, Die 



VOL. XIX. Q 



