40M Annah of the South African Museum. 



before the eye-tubercle in more southern varieties.* Basal enlarge- 

 ment like that of lethalis, except that the upper edge is less sharply 

 or not at all angular. Recurrent part cylindrical, except quite 

 anteriorly at the bend, with a similar sinus at apex, but without trace 

 of apical tooth ; anterior surface of bend on a level with the apex of 

 first tooth of jaw, or farther forward midway between this tooth and 

 the apex of the jaw. 



Dentition and terminal fang as in lethalis, except that there is only 

 one small tooth between the second and third large ones in the upper 

 jaw in both sexes (in a ? from Victoria W. one jaw has 3 such 

 small teeth and the other only one, but this is doubtless an 

 abnormity). 



Colour as in lethalis. 



Measurements of large $ and $ (from Naroep). Total length 

 $ 57, ? 75 ; length of head-plate $ 11, ? 11, width $ 12, ? 15; 

 length of mandibles $ 16, ? 20, width 3 5f , ? 7f ; length of 

 flagellurn 13 ; length of palp $ G8, ? 54, tibia S 22, ? 16, 

 metatarsus + tarsus 3 20^, ? 17; length of III. leg $ 57, ? 46; 

 length of IV. leg $ 82, 2 71, tibia $ 18, ? 15, metatarsus 

 $ 16$, ? 13i. 



Localities (in Cape Colony). (a) Sutherland Div. : 1 ad. $ 

 (dried) from the Little Roggeveld (/. Lycett). 



(/>) Pr. Albert Div. : 1 ad. ? from Laingsburg (D. Can'). 



(c) Beaufort W. Div. : 1 ad. $ , dried (L. Peringuey). 



(d) Middelburg Div. : 1 ad. ? from Middelburg (Dr. C. S. 

 Piers). 



(e) Victoria West Div. : 1 ad. 5 from Wagenaars Kraal (Dr. 

 C. S. Piers). 



(/') Carnarvon Div. : 2 ad. $ and 4 juv. from Van Wyks Vlei 

 (E. G. and D. C. Alston). 



(g) Kenhart Div. : 2 ad. ? from Pofadder, in Great Bushman- 

 land (Max Schlechter). 



(h) Narnaqualand Div. : 1 ad. $ and 2 ad. ? from Naroep and 



* The apex of the flagellum, when depressed, may be distant from the ocular 

 tubercle \\ times the width of the latter ( 3 from Sutherland Div.), once this 

 width ( s from Beaufort W.), f , , or ^-J this width (a d from Van Wyks Vlei) ; 

 in another <? from Van Wyks Vlei one flagellum is J this width from the 

 tubercle, while the other reaches the eye itself ; in one <j from Bushmanland 

 the apex just touches the anterior side of the tubercle, while in the other it 

 reaches to the centre of the eye. Different as two extreme cases may appear, it 

 is nevertheless impossible to specifically separate these specimens, which do not 

 otherwise differ except in slight and unimportant variations in the relative 

 lengths of the segments of the limbs. 



