Families, Genera and Species of British Spiders, etc. 235 



(b) Spinners in a transverse row, the 



longest ones on the outside . . Haiiniid-i; (ii). 



2. Spinners short, in a compact group, one 

 jointed. 

 («) Legs I. and II. with a row of long, 

 strong spines beneath their tibiae, 



metatarsi and tarsi Mimetid/E (15). 



(b) Legs I. and II. without such spines 

 (i.) Legs IV. with a double row of 

 short, curved spines beneath 

 tarsi. Rest of leg joints usually 

 without spines. Falces almost 

 transversely truncate at ex- 

 tremity. Maxillae more or less 

 converging over labium. Tibial 

 joint of (^ palpus without an 



apophysis Theridiid/E (13)- 



(ii.) Tarsi without spines. Legs usually 

 spined : if spines are small and 

 confined to tibia IV., the tibial 

 joint of ^ palpus generally has 

 an apophysis. Falces very obli- 

 quely truncate at extremity. 

 Maxillae straight and parallel, 

 not converging except in Evigone. 

 (a) Clypeus wider than the ocular 

 area (except Tapinopa and 

 Tapinocyba). Falces without 



a convex smooth space at base. ' 



Greatest width of maxillae at 



base LiN'YPHiD^ (14)- 



(p) Clypeus not wider than the 

 ocular area. Falces often with 

 a convex smooth space at base. 

 Greatest width of maxillae at 

 extremity ArgiopiD/E (17). 



B, Tarsal claws 2. 



I. Inferior spinners well separated at their 



bases. Maxillae widely and obliquely 



impressed in the middle Drassid.^j (5). 



II. Inferior spinners close together at their 



bases. Maxillae not impressed in the 

 middle 



1. Eyes all dark (diurnal). Posterior row 



curved forward. Legs II. longer than 

 I., and often than IV. Clypeus mod- 

 erately high. 

 [a] Legs I. and II. much longer than 

 III. and IV. Tarsi without 



scopulae Thomisid.e (18). 



{b) Legs not greatly unequal. Tarsi 



with scopulae Philodromid^ (19). 



2. Eyes mixed light (nocturnal) and dark 



(exc. Sparassidee). Posterior row 



curved backwards. Legs I. and IV. 



longer than II. Clypeus low. 

 (a) A distinct transverse fold in the in- 

 tegument of the under abdomen. 

 Legs I. longest ANVPH.iENiD.^ (7). 



1910 June I. 



