22 Annals of the South African Museum. 



apical fringe of setae on the metatarsus present but less distinctly 

 differentiated than in the 5 . 



Measurements. Total length 12 ; length of carapace 4'9 ; length 

 of pedipalp (including coxa) 18^ ; length of first leg 21. 



Nests. The nests with the surrounding earth of 3 of the younger 

 specimens and the tube and lid of one of the typical females were 

 sent to me by Mr. Schreiner. Their dimensions in mm. are as 

 follows : 



No. 9525. No. 9520. No. 9524. No. 9558. 



Width of lid taken parallel 



to hinge 7f 15 16 20 



Width of lid taken at right 



angles to hinge 8 14 14f 



Width of hole at 10 mm. 



from edge 6 11 m 



Width of hinge 4 9 9^ 



Average thickness of lid 



about 2 2$ 3| 2 



Length of occupant 13f 19 ? 28 



Width of its carapace 3 5f 6| 8J 



The hole in the 3 smaller specimens is cylindrical and almost but 

 not quite perpendicular, inclining slightly towards the hinge side as 

 it descends, so that the deeper part comes to lie below the hinge 

 (cf. pi. I., fig. 1). It is well lined with silk, and widens slihgtly but 

 very distinctly all round at the opening, commencing at about 

 4-5 mm. from the edge. 



The door is thick and nearly circular, the circumference being, 

 however, slightly straightened at the hinge, excepting in the smallest 

 specimen. The upper surface is irregular, concave or nearly flat and 

 coated with mud, thus resembling the surrounding earth. The under 

 side is flat or more or less lightly convex ; it is strongly bevelled at 

 the edge, the bevelled surface passing over quite gradually into the 

 flattened lower surface (the lower edge somewhat angular in places 

 in the smallest specimen only). There is no circle of conspicuous 

 large holes on the under surface, only very few, if any, of the larger 

 holes being present. 



STASIMOPUS UNISPINOSUS, n. sp. 

 (PL I., figs. 1-2.) 



Types. 1 large 5 (38 mm. in length) and 5 smaller ones 

 (24-30 mm. in length) from Hanover and the neighbouring farm 



