64 On some new South-African Spiders. 



posterior border should have been represented as much deeper 

 and angular, and the ridges defining the two anterior de- 

 pressions as much stronger. 



In addition to being smaller than the female, the male 

 differs in having the lower surface of the femora white, but 

 rather thickly mottled with small brown spots — these seg- 

 ments, at least on the anterior two pairs of legs, being in the 

 female reddish brown, and not spotted. The male, in fact, 

 agrees so closely with the description of Ocypete melanogaster 

 of C. Koch (Die Arachniden,xii. p. 31) that I have not hesi- 

 tated to regard the latter as the male of castaneus. 



The palpus is distally much enlarged, the tarsus bearing in 

 the middle of its external edge a smooth black excrescence ; 

 the external portion of the bulb consists of a swollen semi- 

 circular densely coriaceous skeletal piece, and from this three 

 long processes pass forwards to the apex of the alveolus, the 

 external of these being membranous and fimbriated, the 

 median straighter, more horny, and apically hooked. The 

 proximal end of the tarsus narrowed to form a slender neck. 

 The prominence on the tibia very stout, and bearing one long 

 process, which curves abruptly inwards and supports on its 

 base an angular tooth, while a third strong, liooked, but short 

 tooth rises from the external angle of the prominence. 



EXPLANATION OF PLATE VIII. 



Fig. 1. Palystes Johnstoni, sp. n. 5, upper view, nat. size. 



Fiff. 1 a. Ditto. Lower view. 



Fiff. 1 b. Ditto. Vulva. 



Fiff. 1 c. Ditto. Palp of S ■ 



Fiff. 2. Palystes Fllioti, sp. n. Vulva. 



Fiff. 2 a. Ditto. Lower view of trunk, nat. size, to show pattern of 



colours. 

 Fiff. 3. Palystes Spenceri, sp. n. Vulva. 

 Fiff. S a. Ditto. Palp. 

 Fiff. 4. Palystes pulchripes, sp. n. Vulva. 

 Fiff. 4 a. Ditto. Lower view of trunk, to show pattern. 

 Fiff. 5. Palystes lunatus, sp. n. Vulva. 

 Fiff. 6. Olios Spenceri, sp. n. Vulva. 

 Fiff. 7. Panaretus (?) distictus, sp. n. Vulva, 

 Fiff. 7 a. Ditto. Lower view of trunk, nat. size. 

 Fiff. 8. Selenops Spenceri, sp. n. Vulva. 

 Fiff. 8 a. Ditto. Face. 

 Fig. 9. Palystes castaneus (Latr.). Margin of vulva. 



