Contributions to the South African Arachnid Fauna. 459 



DRESSERUS SERICATUS, u. sp. (Plate XXIX, fig. 8). 



Specimens. ? (No. B 2197, Type), from Nauchas, S.W. Africa 

 '(R. W. Tucker, 3/1/16), and ? (No. B 2115), from between Nauchas 

 and Areb (do., 1/16. Percy Sladeu Memorial Expedition.) 



Colour. Cephalic portion of carapace dark reddish-brown, and 

 clothed with dense, almost scopula-like dark hairs ; from fovea to 

 posterior border pale brown. Abdomen testaceous, covered with 

 long, silky, dark hairs, having a dull yellow sheen ; hairs on under 

 side of abdomen sparser and shorter. Under surface of legs, coxae, 

 sternum, etc., pale brown, slightly darker anteriorly and covered with 

 long fine hairs. Labium and coxae of pedipalps dark brown, and 

 with anterior white borders very distinct. Chelicera almost black ; 

 legs light brown, darker distally, especially anterior legs, which become 

 reddish, and clothed with fairly dense black hairs from patella onwards ; 

 rest of legs and sternum also covered with long dark silky hairs. 



Ceplialotliorax. As long as patella, tibia, metatarsus and \- of 

 1st leg, and slightly exceeding tibia, metatarsus and tarsus of 4th leg. 

 Width equal to patella, tibia and metatarsus of 1st leg, and extends 

 from fovea to anterior surface of ocular tubercle. Cephalic portion 

 about the same width as the thoracic, and raised, fairly abruptly above it. 



Eyes. Posterior medians 1^-2 diameters apart and 3 diameters 

 from anterior laterals. Seen from the front the centres of anterior 

 median eyes lie on or above a line joining the lower edges of posterior 

 median eyes ; latter less than 4 times the area of the former. 



Legs. Metatarsus III with several short spines apically on under 

 surface, metatarsus IV with 5-6 moderately long fine spines apically, 

 mixed with setae, and 2 spines centrally lower down. 



Sternum. Nearly twice as long as wide. 



Vulva. Orange-red in colour, raised, and with surface lightly 

 punctate ; convoluted vesicula seminalis show through in spirits as 

 the dark markings indicated in fig. 8. 



Measurements. Total length 11 mm. ; carapace 4'8 mm. long and 

 3'1 mm. wide, i. e. ratio of length to breadth, about T55 : 1. 



In the 2nd specimen (No. B 2115), which is subadult, the vulva has 

 not yet appeared although the specimen is 1O5 mm. long. 



FAMILY ZODARIIDAE. 

 GEN. DIORES, Sim. 



DIORES AURICULA, ii. sp. (Plate XXVIII, fig. 3). 

 Specimens. One ? (B 3905, Type), Insiza, Rhodesia (Gr. French). 

 Colour. Carapace dark yellow, cephalic portion a little darker ; 



