386 



Annals of the South African Museum. 



terminating just behind the base of the lower jaw at a little distance 

 behind the basal cup, its upper side feebly sulcate, the sulcus con 

 tinued over the anterior curve, the outer wall of the sulcus higher 

 than the inner and continuous with the inferior keel of the pro- 

 current portion." 



Palp and legs in ? . Palps stout, unarmed ; I. leg very slender, 



r. lanatits (Koch). Fig. 6, left mandible of <? from inner side. Fig. 6a, left 

 mandible of f from above. Fig. 7, right mandible of ? from lateral side. 

 Fig la, left mandible of $ from above. Fig. lb, section through the terminal 

 fangs of both upper jaws of ? at the dotted line in fig. 7. 



Hex. crassus, n. sp. Fig. 8, right mandible of ? from lateral side. Fig. 8, 

 section through the terminal fangs of both upper jaws of ? at the dotted line in 

 fig. ft. 



unarmed ; II. and III. legs robust (figs. 1 II. and 2), provided along 

 the upper posterior margin from the tibia onwards with a row of 

 blunt spines, which are very short and stout on the tibia, but 

 increase regularly in length distally, the longer ones spathulate, 



A very similar sulcus and keel occurs in Ceroma. 



