116 Transactions of the South African Philosophical Society. 



being almost twice that of the ocular area), its length equal to or less 

 than that of the fourth tibia and metatarsus. 



Total length (including chelicera) 19 mm. "; length of carapace 8, 

 width 6-J. 



Nests— T The nest consists of a longish oval sack, which was evi- 

 dently embedded in the mud wall. The opening is placed at one 

 end of the longer surface, so that the door when closed lies parallel 

 to the long axis of the sack. The door itself is D- shaped, thick and 

 rigid, but thinner at the edge, like that of M. mordax, Pure. (Ann. S. 

 Air. Mus., vol. hi., p. 70, fig. 1), but with a narrower hinge. The 

 upper surface of the door is covered with mud and small pebbles, 

 while the lower surface is lined with white web and is slightly con- 

 cave, becoming convex only towards the margin. The centre of the 

 under surface is either without pits or is provided with several pairs. 

 Length of a nest 50 mm., width at 10 mm. from opening 16. Width 

 of door taken parallel to hinge 21-J, at right angles to hinge 16 \ ; 

 width of hinge 16-J, thickness of door in middle 2J- ; width of carapace 

 of occupant 6f . 



Family CTENIZID^. 



Gen. IDIOPS, Perty. 

 Idiops pungwensis, n. sp. 



1 $ (No. 13576) from the north side of the Pungwe Eiver in 

 Portuguese East Africa, about 50 miles east of Umtali, at an alti- 

 tude of about 2,100 feet (D. L. Patrick). Very like Ctenolophus 

 cregoei (Pure, Trans. S. A. Phil. Soc, vol. xi., p. 352, 1902), but 

 differing principally in the following respects : — 



Colour pale ochraceous, in parts, especially the posterior part of 

 the cephalic area and the anterior pair of legs, rufescent, the tibiae 

 of these legs deep red on the inner side at apex ; granular areas on 

 cephalic portion of carapace infuscate ; under side pale yellowish ; 

 abdomen purplish-black above. 



Carapace granular, with a pair of spines posterior to the ocular 

 area ; its length equal to that of the metatarsus and § of the tarsus 

 of first leg. Ocular area short, its length only slightly exceeding ^ 

 of the distance from its anterior margin to the middle of the fovea. 

 Area formed by the four anterior eyes decidedly wider behind than 

 in front, its length scarcely 1J times its posterior width ; frontal 

 eyes very prominent, somewhat conically pointed above, close 

 together but separated by a deep cleft. Posterior median eyes 3-4 



