116 Mr. J. Blackwall on the Structure, Functions, (Economy, 



» 

 extracted from M. Koch's account of Cheiracanthium carnifex 

 {Clubiona erratica) : — " Meine Bolyphantes equesiris Uebers. d. 

 Arachn. Syst. bezeichnet eine olivenbraunliche oder rostbraune 

 Abart" (Die Arachn. B. vi. p. 15). 



I avail myself of this opportunity to correct an orthographical 

 error which occurs under the heads of Clubiona nutrix and Clu- 

 biona erratica in the catalogue (Annals and Mag. of Nat. Hist. 

 Second Series, vol. viii. p. 96). For Chieracanthium read Cheir- 

 acanthium. 



Family CiNiFLONiDiE. 



Genus Ciniflo, Blackw. 



Ciniflo atrox. 



Annex to the particulars of this species recorded in the cata- 

 logue (Annals and Mag. of Nat. Hist. Second Series, vol. viii. 

 pp. 98, 99) the following remark. The subjoined dimensions of 

 Clubiona [Ciniflo) atrox given by M. Hahn (Die Arachn. B. i. 

 p. 115) have, most probably, been taken from Ciniflo fer ox. 



"Lange eines ausgewachsenen Weibchens 7 Linien. Breite 

 des Hinterleibes 2i Linien." 



Family AGELENiDiE. 



Genus Agelena, Walck. 



Agelena elegans. 



To the particulars in connexion with Agelena elegans given in 

 the catalogue (Annals and Mag. of Nat. Hist. Second Series, 

 vol. viii. p. 101) the following facts relative to its ceconomy may 

 be appended. It spins a minute, horizontal sheet of web in de- 

 pressions produced by the trampling of cattle, and by other 

 causes, in damp soil ; and in August the female constructs a 

 plano-convex cocoon of compact white silk, measuring 2^5;ths of 

 an inch in diameter, which comprises 5 or 6 spherical eggs of a 

 yellow colour, not cemented together, and is usually attached by 

 its plane sui'face to the leaves of plants. 



Family TheridiidjE. 



Genus Theridion, AValck. 



Theridion sisyphum. 



As the remarks under this head in the catalogue (Annals and 

 Mag. of Nat. Hist. Second Series, vol. viii. p. 338) appertain to 

 Theridion tepidariorum, they should be transferred to that spe- 

 cies, merely substituting the trivial name tepidariorum for that 



