On. Some South. African Avicularildae (Arachnida). 105 



it is closely allied iu palpal organ and spination. In tricalcaratus 

 the carapace equals metatarsus and \ tarsus of 4th leg and is less 

 than patella and tibia, and metatarsus and tarsus of 1st leg. 



Spinner* equal in length to of sternum, as in tricalcaratus ; in 

 collinus the spinners are the same length as sternum. 

 Labium and coxae of pedipalps are muticous. 



Chelicerae with 8 teeth and a few minute scattered denticles. 



SPIROCTENUS PUBCELLI, n. sp. Plate IX, fig. 6 A, B, and c). 



Specimens . $ (Type No. 150,472). Simonstown. (Dr. W. F. 

 Purcell, 4/10). 



Colour. Carapace and upper surface of femora dark ochraceous 

 brown. Cephalic portion slightly darker, with a line down centre 

 to fovea ; under surface of femora lighter and tinged with olive; 

 legs slightly browner and darker distally ; palps lighter distally and 

 tinged with olive. Entire under surface ochraceous ; upper surface 

 of abdomen strongly infuscated, especially anteriorly ; posteriorly, 

 infuscation takes the form of a central dark line and 3 to 4 distinct 

 oblique dark lines branching from it; sides of abdomen clear ochraceous ; 

 small dark spot on under abdomen below each posterior spinner. 



Carapace. Equal in length to patella and {: tibia of 1st leg, or 

 to metatarsus and .} tarsus of 1st leg, and equals T metatarsus IV. 

 Fovea deep and very strongly recurved. 



Eyes. Front row we.ll procurved and large; medians round, laterals 

 oval, larger, and equidistant. Posterior row recurved ; medians oval, 

 slightly smaller than laterals and touching them. 



Litbiuni and coxae of pedipalps muticous; chelicerae with 9 teeth. 

 Posterior spinners equal in length to sternum; postei-ior joint just 

 less than ^ subapical joint. 



Pedipalps. As in Plate IX, fig. 6 A and B. ; cf. S. collmus (Pure.). 



Leys. Tarsi muticous (may have small spinules below). Scopulae 

 divided bv line of setae in every case ; setal band of IV being broad 



* */ 



and merging with scopula. The lines of setae down tarsi I and II 

 are continued down the metatarsi, which are scopulated distally 

 over -3- to of their length. Metatarsus I fairly strongly curved ; 

 spined below, as in Plate IX, fig. 6c. Tibia I as in Plate IX, fig. 6 c. 

 Metatarsus II with 1 apical spine on inner edge, 1 below it mesially ; 

 3 spines down inner side and one in centre of outer side ; also, one 

 on upper surface below centre. 



Measurements. Total length 19'5 mm., excluding spinners; 2T6 

 including them. Carapace, G mm. long, 4' 75 wide, 1st leg 20-5; 

 4th leg 25 mm. 



