New South African Spiders. 



89 



'The under surface is smooth and concave right up to the edge, which 

 is quite sharp and fits against the outer edge of the outspread rim of 

 the tube. 



PIG. 4. Section through trap-door nest of A. spiricola n. sp. (nat. size) ; a, edge of 

 silken lining ; bb, surface of ground. 



Measurements of nest of the 2 with young. Width of lid 

 and of rim of silken tube taken parallel to hinge 13 mm. ; width of 

 same taken at right angles to hinge 10 ; width of opening of tube 

 7iy by 94- ; diameter of tube at 1 cm. from opening about 6f and 

 near bottom 9| ; thickness of lid in centre 3 ; width of hinge 9| ; 

 width of carapace of occupant 4-J. 



3. ACANTHODON KENTANICUS n. Sp. 



Type. I ? (No. 12412) with nest, found by the Eev. F. C. Kolbe 

 in open ground under an Acacia tree, near the village of Kentani, 

 Cape Colony, in 1902. 



? . Colour pale greenish ochraceous, the yellow predominating 

 in some parts, the green in others ; carapace brown between the 

 two groups of eyes ; abdomen pallid (damaged above). 



Carapace as long as the tibia, metatarsus, and ^ J- of the tarsus of 

 fourth leg and as the patella, tibia, and i of the metatarsus of first 

 leg. 



