KEYS TO THE FAMILIES AND GENERA OF BRITISH 

 SPIDERS, AND TO THE FAMILIES, GENERA AND 

 SPECIES OF BRITISH HARVESTMEN AND PSEUDO 

 SCORPIONS. 



WM. FALCONER, 

 Slaithwaitc, near Hucldersfiiitl. 



[Coniinued from page 242) 



Sub Fam. Erigoneae. 



A. Abdomen with a scutum. 



I. Fang sinuous, set in tlie hollowed ex- 



tremity of the falces. Fang groove 



without teeth Group i. 



II. Fang not sinuous, falces not hollowed 



out, and the groove with teeth. . . . Group 2. 



B. Abdomen without a scutum. 



I. Tibiae I. and II. (in Maso, also meta- 



tarsi I. and II.) witli two rows of long, 



slender, divergent spines beneath . . Group 8. 



II. Tibiae and metatarsi without such 



rows of spines. 



1. Sternum as wide as long, or nearly so. 

 (a) Anterior row of eyes curved for- 

 ward. See also Notioscopus and 



Maro in Group 7 Group 3. 



{b) Anterior eyes straiglit, or nearly so 



(i.) Posterior row of eyes curved 



backwards (except Savignia 



and Lophomma). Central eye 



space usually much longer 



than wide. Cephalic lobes and 



protuberances in the male. 



where present, within the oculai 



area, 



(«) Eyes extremely small, and ^ 



posteriors very widely 



separated Group 5. 



\p) Eyes larger and in a more 



compact group Group 4. 



(ii.) Posterior eyes straight, or 

 nearly so. Central eye space 

 (exc. Notioscopus) usually 

 about as wide as long. Ce- 

 phalic lobes and protuberances 

 in the male, where present, 

 always placed behind the eyes Group 7. 



2. Sternum much longer than wide . . Group 6. 

 Group I. 



A. Fangs and falces characteristic . . . . Ceratiuellci Emer. 

 Group 2. 



A. Posterior eyes very strongly curved back- 

 wards, nearly equidistant. Anterior row 



curved backwards Lophocarenitm Menge. 



B. Posterior eyes moderately curved back- 

 wards, centrals nearer to each other than 



to the laterals. Anterior row straight . . Cuephalocales Sim. 



igio Sept. I. 



