Mr. Brackwarr’s Descriptions of new Species of Spiders. 607 
employed to curl certain lines proceeding from the spinners, observed to con- 
stitute the most remarkable character in the web of every spider comprised in 
this family, those supplied by the inferior pair being wrought into a delicate 
inflected band, which chiefly imparts to the snare its most important property, 
namely, that of adhesion *. ; 
Crevices in rocks and walls, and the foliage of trees and shrubs, are the 
favourite haunts of the Ciniflonide, which, by their general organization and 
habits, should immediately follow the Drassidæ in the systematic arrange- 
ment of the Araneidea. 
Gen. CINIFLO. 
Oculi in seriebus 2 transversis; serie posteriori postice convexá; seriei ante- 
rioris et brevioris oculi intermedii recti, supra marginem frontalem positi, 
pauld majores; utriusque laterales in tuberculis positi. Marille fortes, 
ad apicem dilatatæ rotundatæ pauldque labium versus declinate. La- 
bium pauld longius quam latum, medio dilatatum, apice truncatum. 
Pedes robusti; pari Imo longissimo, dein 4to (in 2), 3tio brevissimo. 
Tarsi triunguiculati ; unguibus 2 superioribus curvatis pectinatis, inferiore 
prope basin inflexo. 
Ciniflo atrox. (Clubiona atrox, Latr. Gen. Crust. et Insect. t. I. p.93. Walck. 
Hist. Nat. des Insect. Apt. t. I. p.605. Amaurobius atrox, Koch, Uebers. 
ONE Arachn. Syst. p. 15.) 
This i is the only spider at present ascertained to belong to the genus Ciniflo ; 
though, from what is stated by M. Walckenaer relative to the appearance of 
the web of Clubiona feror, Faune Française, Aranéides, p. 152, it scarcely 
admits of a doubt that this species also is provided with eight spinners and 
with calamistra ; to assign it a place, however, among the Ciniflonide before 
this point has been determined by observation would be premature. 
I may remark, that the relative length of the legs is different in the sexes of 
Ciniflo atrox, the second pair being rather longer than the fourth in the male. 
* For a description of the calamistrum and of the manner in which it is employed by the Ciniflonide 
in the fabrication of their webs, and for an account of the discovery of the fourth pair of spinners in 
spiders belonging to this family, see the Transactions of the Linnean Society, vol. xvi. p. 473, et seg., 
and vol. xviii. p. 223. 
