1897.] MR. E. I. POCOCK ON ETHIOPIAN SPIDERS. 731 



AcANTHODON THORELLii (Cambr.). 



Idiops thorellii, Cambridge, op. cit. p. 156, pi. viii. fig. 6. 



A single example (tyjje) from S. Africa. 



AcANTHODON LAOUSTRis, sp. 11. (Plate XLI. figs. 7-7 b.) 



2 . — Colour. Carapace and mandibles deep brown ; legs clearer, 

 more castaneoiis, but the distal half, that is to say f rom tlie patella 

 to the tarsus of the palpi and first two pairs, almost piceous, and 

 contrasting strongly with the pale colour of tlie femora. 



Carapace about as long as the patella and tibia of the 4th leg, 

 excelling those of the 1st leg by about half the length of the 

 protarsus ; cephalic area not very strongly elevated, depressed 

 behind the ocular cluster ; anterior median eyes separated by a 

 space equalling above twice their diameter, the space between these 

 and the posterior laterals greater than that; posterior medians 

 only a little smaller than anterior medians, separated from each 

 other by about three diameters and from the posterior laterals and 

 anterior medians by a space which a little excels their diameter ; 

 a line running parallel to the long axis of the body and touching 

 the outer rim of the anterior medians would pass through the 

 centre of the posterior medians ; posterior laterals long, elhptical, 

 but not twice the length of the anterior medians ; anterior laterals 

 on a double tubercle, about as wide as the anterior medians, the 

 quadrangle they form being about parallel-sided and rather more 

 than twice as long as wide. 



Armature of mandible normal ; the lower border furnished with 

 about 6 external and 6 internal teeth. Labium with 2 teeth ; 

 maxilla} toothed all up their inner edge. Sternum convex from side 

 to side ; the sigilla opposite the coxae of the 1st and 2ud legs, 

 removed from the margin by a space which equals about half their 

 own length. 



Femora and patella of 1 st and 2nd legs and paljn unspined, 

 though coarsely bristly ; tibiae, protarsi, and tarsi armed externally 

 and internally with numerous spines, shorter above, longer beneath, 

 those on the outer surface of the tibia of the 2nd are long and 

 setiform however, similar spiniform set£e being also observable on 

 the lower surface of the patella and on the distal extremity of the 

 femur of the palp ; patella of 3rd with about half a dozen spines 

 in front and one above; tibia with a few spines in front and 

 behind and one or two below ; protarsus with two series of spines 

 above and below as well as others round the apex ; tarsus with 

 about a dozen spines below and at the sides ; patella of 4th with 

 a cluster of spines in its basal half in front, tibia unspined though 

 with a few setiform spines below, protarsus strongly spined in its 

 distal half below ; tarsus strongly spined below and at the sides. 

 Claws armed with a single strong tooth. 



Measurements in millimetres. Total length 19 ; length of cara- 

 pace 9 ; of palp and of 1st leg 18-8, of 2nd 16, of 3rd 16, of 



