72 Rev. F. (). rkkanl-Cambrklge on 



a. Posterior vow of eyes strongly 



curved, its convexity directed for- 

 wards. Femora of all four pair of 



legs armed with at least one spine 



on the upperside Taranucnus, Sim. 



n. Posterior row of eyes straight or 



almost. Femora of first pair of 



less only armed with spines. 



( Lepiyphantes.) 

 i. Femora of first pair alone armed with 

 a spine. Metatarsi of at least the first 

 two pairs bearing a single erect spine 

 on the upperside near the base of the 

 joint (nebulosus, leprosus, alacris, and 

 minutus have several lateral spines as 

 well). Falees in both sexes similarly 

 though very slightly attenuated and 

 divergent at the apex Leptyphantes, Menge, Sim. 



ii. Femora of at least the first two pairs 

 armed with spines. Metatarsi without 

 any spines at all. Falees of males 

 alone slightly attenuated and divergent. Bathypkantes, Menge Sim. 



2*. Anterior metatarsi shorter than the 

 tibiae. 



a. Eyes small and widely separated. 



i. Sternum produced behind into a long, 

 slender, pointed prominence, extending 

 beyond the coxal joints of the fourth 

 pair of legs, not suddenly curving 

 downwards Opisto.rys, Sim. 



ii. Sternum terminating behind and sud- 

 denly curving down between the coxal 

 joints of the fourth pair of legs. 



a. Legs long and slender ; tibial 



spines long and stiff. Sternum 

 terminating iu a stout, short, 

 conical point Por/iotuma, Sim. 



b. Legs short and very stout ; tibial 



spines short and fine. Sternum 



terminating in a truncate point. Ht'luira, Sim. 



b. Eyes larger and much nearer to- 



gether. 



i. Legs short and stout. Eyes of posterior 



row rarely less than one diameter apart, 



usual/;/ more. Prominences on which 



are situated the lateral eyes scarcely 



noticeable Tmeticus, Menge, Sim 



ii. Legs long and more slender. Eyes of 



posterior row seldom more than one 



diameter apart, usually less. Lateral 

 - situated upon very distinct obliqu 



prornine] 



