238 Families, Genera and Species of British Spiders, etc. 



7. Fam. Anyph^nidae. 



A. Legs I. longest. Cephalothorax with a 

 longitudinal impression. Labium much 

 longer than wide Anyphcena Sund. 



8. Fam. Eresidae. 



A. Position of eyes characteristic. Caput very 

 convex, and distinctly marked off from 

 the thorax Eresus Walck. 



9. Fam. Dictynidae. 



A. Legs without spines. 



I. Clypeus much wider than an anterior 

 eye. Caput strongly convex. Maxillae 

 fairly long, and inclined to labium . . Dictyna Sund. 

 IL Clypeus not or not much wider than an 

 anterior eye. Caput lower. Maxillae 

 short, and nearly straight. 



1. Posterior eyes small, widely separated, 



straight or very slightly curved for- 

 ward. Central eye space somewhat 

 wider than long 



2. Posterior eyes large, closer, curved 



slightly backwards. Central eye 

 space not wider than long 



B. Legs with spines. 



I. Sternum not produced, and posterior 



coxae touching. Supernumerary spin- 

 ner bipartite 



II. Sternum produced between the separ- 



ated posterior coxae. Tibia III. 

 beneath, with a long curved spur-like 

 spine, stout in ^, slender in $ . . 

 10. Fam. Agelenidae. 



A. Spinners in a group, one jointed. The four 

 openings of the tube and laminal tracheae 



on the anterior part of the under abdomen Argyvoneta Latr. 



B. Superior spinners two jointed. The single 

 opening of the tube tracheae close to the 

 spinners. 



I. Labium longer than wide. Posterior 



coxae contiguou=;. Apical joint of the 

 upper spinners at least as long as the 

 basal. Anterior tibiae with few spines. 



1. Falces very gibbous at the base, pro- 



jecting beyond the clypeus, inferior 



margin with three teeth. Legs siiort CoeIotesJi\-. 



2. Falces not gibbous, or only slightly 



convex, not projecting beyond the 

 clypeus. 

 {a) Posterior eyes strongly cur\cd 



forward Te.xtrix Sund. 



(b) Posterior eyes straight or strongly 

 curved backwards. Legs long, 

 (i.) Both rows of eyes curved back- 

 wards igelena Walck. 



(ii.) Both rows of eyes nearly straight Tegenaria Latr. 



II. Labium not longer than wide. Posterior 



coxfc not contiguous. Apical joint of 



Protadia Sim. 



Lathys Sim. 



Amaitvobius C. Mocli. 



AlteUa Sim.f 



* Lethia Meng'e, preoccupied. — B.LS. 

 •)• Amphissa Cb., preoccupied. — B.I.S. 



Naturalist, 



