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



B. Frontal spines strong. 



I. Frontal spines unequal, in straight line. 



1. Frontal spines nearly \ertical ; cen- 



tral one slightly longest ; abdomen 

 without denticulae 



2. Frontal spines directed forward ; 



central one equal at least twice the 

 lateral ones ; abdomen with nu- 

 merous strong denticulae 



II. Frontal spines equal. 



1. Frontal spines directed a little for- 



ward ; central one a little in ad- 

 vance ; femora and genuae of legs 

 with minute, and two larger, den- 

 ticulae 



2. Frontal spines directed much for- 



ward, in a straight line ; these 

 joints of legs without denticulae.. 



(7) Gen. Kemastoma. 



A. Black : hind part of cephalothorax 



marked with two conspicuous yellowish 

 marks ; legs short 



B. Legs long and very slender ; abdomen 



marked with pairs of dull golden 

 metallic spots 



(8) Gen. Trogidus. 



Inner edge of hood with closely set tuber- 

 culous spines ; a fringe of similar spines 



on outer side of femora of legs I 



(g) Gen. Anelasmocephalus. 



Front edge of hood and the legs (except the 

 tarsi) with strong spines ending with 

 curved bristles 



palpinalis Herbst. 

 mcadii Camb. 



ephippiatns C. L. Koch. 

 spinosits Bosc. 



htguhre F. O. Mullen 

 chrysomelas Herm. 



tricarinatus Linn. 



cctmbridsii Westw. 



II 



II. Chernetidea. 

 TABLE A.— GROUPS AND GENERA. 



ist GROUP. EYES 4. 



I. Limbs of forceps curved ; legs I. and II. 



femora and tarsi divided into two pieces 



II. Limbs of forceps straight or nearly so ; 



legs I. and II. femora and tarsi undivided 



Obisium Leach, (i) 

 Chthonius C. Koch. (2) 



2nd GROUP. EYES 2. 



I. Falces small ; cephalothorax divided into 

 three parts by two grooves, rounded in 

 front ; abdomen with a central longi- 

 tudinal line Chelifer Geoffr. (4) 



. Falces large ; cephalothorax without 

 grooves, truncated in front ; abdomen 

 without a central longitudinal line .. .. Rone us 1,. \\oc\\. (3) 



3rd GROUP. EYES o. 



Cephalothorax di\ided into two parts by a 

 groove ; legs I. and II. without a tro- 

 chantin (a small extra joint attached to 



base of femora) Chividimn Menge. (6) . 



Naturalist,. 



