164 Transactions of the South African Philosophical Society. 



Synopsis of the South African species ( 2 2 ) of Ariadna * : — 



a. Chelicera with the apical tooth of inferior margin of inner surface well de- 

 veloped and as large as the 3 teeth of superior margin. Head very broad in 

 front, its width behind the ocular area almost equalling the length of the first 

 tibia., Metatarsi I. and II. with 2-3 rows of spines on each side. Cape Penin- 

 sula 1. A. dentigera, n. sp. 



6. Chelicera with the inferior tooth minute or obsolete, smaller than the superior 

 teeth. Head narrowed in front, its width about f— | of the length of first tibia. 

 Metatarsi I. and II. with only 1 row of spines on each side (sometimes with 1-2 

 superior spines in addition). 

 a 1 . Metatarsus of first leg subequal to or longer than the tibia. 



a-. Tibia I. with 5-8 spines above the inferior row on each side. Anterior 



patella not spined. Caledon Div 2. A. lightfooti, n. sp. 



6 2 . Tibia I. with 3-4 spines on each side above the inferior row. Anterior 

 patella spined. 



a 3 . Width of both median eyes together much greater than their dis- 

 tance from posterior lateral eyes. Bushmanland 3. A. jubata, n. sp. 

 63. Width of both median eyes together not greater than their dis- 

 tance from posterior lateral eyes. Kentani District. 



4. A. kolbei, n. sp. 

 b x . Metatarsus of first leg distinctly shorter than the tibia. 



a 4 . Legs short, the length of the first metatarsus being subequal to the 

 width of the head just behind the eyes, and the fourth femur only about 

 2J times as long above as high. Colour yellow. Hanover. 



10. A. scabripes, n. sp. 

 6 4 . Legs longer. 



a 5 . Tibia I. with 5-6 superior spines on outer side. Patella I. spined 

 internally. Hanover and Port Elizabeth .. 6. A. karrooica, n. sp. 

 6 s . Tibia I. with only 3-4 superior spines on each side. Patella not 

 spined internally. 

 a 6 . Patella I. not spined at all. 



a 7 . Metatarsus IV. with 1-2 spines below. Tibia IV. unspined. 

 a 8 . Carapace as long as the tibia and § of the metatarsus of 

 first leg. Cape, Caledon, Stellenbosch, Paarl, and Mal- 



mesbury Divs. 5. A. bilineata, n. sp. 



6 8 . Carapace only a little shorter than the tibia and meta- 

 tarsus of first leg. Cape Peninsula. 7. A. capensis, n. sp. 

 6?. Metatarsus IV. with 4 stout spines below. Tibia IV. spined 



below. Uitenhage Div 8. A. segestrioides, n. sp. 



b 6 . Patella I. spined externally. Mashonaland and Bechuanalancl. 



9. A. umtalica, n. sp. 



Gen. SEGESTEIELLA, n. gen. 



Allied to Ariadna, Aud., but differing in having the body elongate 

 cylindrical, the abdomen obtusely produced beyond the spinners, and 

 the fourth pair of legs very short, not reaching hind end of abdomen 

 when stretched out and with the femur very short and stout, strongly 



* Simon mentions the occurrence of the genus in South Africa, but does not 

 appear to have described any of the species. 





