381 Annals of the South African Museum. 



from the Solpugidae may be summed up as follows : (1) the absence 

 of one joint of the trochanters in each leg of the three posterior 

 pairs ; (2) the absence of claws in IV. leg ; (3) the extreme shortness 

 of the distal portion of IV. leg in proportion to the basal part 

 ( trochanters -f coxa) ; (4) the length of the distal segment of the 

 claws in the II. and III. legs ; (5) the minuteness of the third tarsal 

 segment in these legs ; (6) the absence of subungual appendages in 

 these legs ; (7) the presence of a genital papilla in the male ; (8) the 

 shortness of the upper lobe of the rostrum. 



The females of the two Cape species known to me may be dis- 

 tinguished as follows : 



a. Upper fang of mandibles strongly compressed laterally, sharp-edged above. 



Bushmanland H. lanatns (Koch) 



b. Upper fang thick, rounded and simply convex above. Worcester. 



II. crassus, n. sp. 



HEXISOPUS LANATUS (Koch). 

 (Figs. 1-76.) 



1842. Acllopm lanata, C. L. Koch, Arch. f. Naturg., viii., Bd. i., 

 p. 354. 



1848. Acllopiis Uiiiata, C. L. Koch, Die Arachn., xv., p. 102, fig. 

 1489. 



Colour ''' yellow to whitish yellow, the terminal fangs of the jaws 

 red Avith black tips and edges ; eyes with a black ring round each. 

 Pubescence remarkably soft, very thick, covering whole animal, the 

 shorter hairs mostly reddish, the longer ones mostly paler ; the 

 hairs on the anterior thoraco-abdominal segments dark brown ; tips 

 of the palps with orange-brown hair in the ? ; the anterior part of 

 the. head-plate and the ocular tubercle with a number of short black 

 hairs in the , which are absent in the ? and young ; no spines or 

 spiniforrn seta) on the head-plate or mandibles. Ocular tubercle, 

 projecting far beyond the anterior margin of head-plate in the $ , 

 but less prominent in the 5 , a line joining the anterior margins of 

 the eyes lying behind the middle of the tubercle in the $ , but in 

 the middle in the $ (figs. Qa and 7c<). 



Mandibles in ? and yoiin/j (figs. 7, 7a) stout and rather short, the 

 hairless area at the base of the upper fang large, bordered by a semi- 

 circle of small red granules and nearly smooth ; terminal fang of 

 upper jaw strongly compressed laterally, curving outwards and 



* These specimens, which I had described as new, were kindly identified from 

 Koch's type by Prof. K. Kraepelin. 



