350 On Three new Species of Spiders. 



Selenops Kraussii, sp. n. 



In size and colour much resembling S. radiatus, Latr. ; the 

 legs strongly banded, femora with three black stripes, tibiae 

 with two. 



Eyes of very nearly the same relative size and position as 

 in S. vigilans, the four medians more strongly recurved than 

 in radiatus, the posteriors very noticeably larger than the 

 anteriors, the diameter being nearly one third longer ; a line 

 touching the lower rims of the posteriors would pass about 

 through the centres of the anteriors ; posterior lateral eyes 

 not so prominent as in vigilans. 



Tibiae of first and second legs with five or six pairs of spines 

 below ; protarsus with three pairs. 



Vulva as in fig. 3, the median area not so wide as in 

 radiatus and passing posteriorly between the lateral lobes or 

 lappets, which thus do not unite. 



Loc. Cape Colony (Dr. Krauss). 



Allied to S. atomarius, Simon, from Port Elizabeth (Bull. 

 Soc. Zool. France, xii. p. 466, 1887), in the spine-armature 

 of the legs, but with the four median eyes much less strongly 

 recurved and farther apart, the anterior laterals closer to the 

 edge of the clypeus, &c. (see Hist. Nat. Araignees, ii. pi. i. 



S. fugitivus of Walckenaer (Ins. Apt. i. p. 546), from 

 Caffraria, may be identical either with S. atomarius, S. Spen- 

 ceri } or S. Kraussii, or with neither. 



The Tropical-African species of Selenops known to me may 

 be distinguished as follows : — 



a. Protarsus of legs of first and second pairs with 2 



pairs of spines ; tibia with -'J pairs. 



a 1 . Lateral lobes of vulva meeting, or almost so, in the 

 middle lino and circumscribing a heart-shaped 

 area ; four median eyes subequal in size, less 

 strongly recurved, the posterior farther from the 

 medians radiatus, Latr. 



b l . Lateral lobes of vulva widely separated posteriorly ; 

 four median eyes noticeably unequal in size, the 

 posteriors larger than the anteriors and closer to 

 them vigilans, sp. n. 



b. Protarsus of first and second legs with 3 pairs of 



spines ; tibia with 5-7 pairs. 

 a 2 . Tibia with 7 pairs of spines ; lobes of vulva 

 fusing posteriorly and circumscribing an oval 

 heart-shaped area, behind which they form a broad 

 plate ; eyes of ocular quadrangle very strongly 

 recurved, posteriors much larger than the medians, 

 lower rim of posteriors on a level with upper rim 

 of anteriors Spenceri, Poc 



