184 ARACHNIDES. 



the nearly equal length of the exterior fusi, and by the straight- 

 ness of the line formed by the four anterior eyes. The Clubionae 

 construct silky tubes under stones, in chinks of walls, or between 

 leaves. Their cocoons are globular(l). 



Aranea. 



The true Aranese, which we at first designated by the generic ap- 

 pellation of Tegenaria, retained by Walckenaer, and to which we 

 add his Angelenae and Nyssi, have their two superior fusi much 

 longer than the others, and their four anterior eyes arranged in a 

 line posteriorly arcuated or forming a curve. 



They construct, in our houses, in the angles of walls, on plants, 

 hedges, along the roads, in the earth, and under stones, a large and 

 nearly horizontal web, at the upper part of which is a tube where 

 they remain motionless(2). 



Then follow the Naiades of Walckenaer, or our aquatic Tubitelae, 

 which form the 



Argyroneta, Lat. 



The jaws are inclined on the ligula, which is triangular. The 

 two eyes of each lateral extremity of the ocular group are closely 

 approximated and placed on a particular eminencej the four others 

 form a quadrilateral. 



Argyroneta aquatica; Jiranea aquatica, L., Geoff., Deg. 

 Blackish brown, the abdomen darker; silky; four depressed 

 points on the back. It is found on the stagnant waters of Eu- 

 rope, where it swims with the abdomen enclosed in a bubble of 

 air; it forms an oval cell, filled with air, and lined with silk, 

 from which various threads extend to the surrounding plants. 

 Here it lies in wait for its prey, deposits its cocoon, which it 

 carefully watches, and encloses itself to pass the winter. 

 In the second section of the sedentary and rectigrade spiders, that 

 of the IxEquiTEL^, the external papillae are nearly conical, project 

 but little, are convergent, and form a rosette; the legs are very slen- 

 der. The jaws incline over the lip, and become narrower at their 

 superior extremity, or at least do not sensibly widen. 



Most of them have the first pair of legs longest, and then the 



(1) Jiranea holosericea, L. ; Degeerj Fab. ; Walck., Hist, des Aran. IV, iii, fem. ; — 

 Aranea atrosc. Deg., Fab.; List, Aran-, XXI, 21; Albin, Aran., X, 48, and XVII, 

 82. See also Tab. des Aran., and the Faun. Paris., Walckenaer. 



(2) Aranea domestica, L., Deg., Fab.; Clerck., Aran. Suec, pi. ii, tab. ix; — 

 Tegeneria civilis, Walck., Hist, des Aran., V, \ ,— Aranea Uibyrinthica, L., Fab. ; 

 Clerck, Aran., Suec. pi. ii, tab. viii. See the Tab. des Aran., Walck. 



