Neir cunl Little Ki/oini .So///// African Solifugte. 385 



directed slightly downwards from the base, the outer side strongly 

 flattened and not vertical but inclined upwards and outwards from 

 the inferior to the superior edge of the fang (see fig. Ib) ; inner 

 surface of the faiig strongly convex, subangular longitudinally along 

 the middle, from whence the surface strongly slopes upwards and 

 outwards as far as the superior edge, the upper surface being- 

 horizontal only quite at the base ; superior edge of fang sharp, 

 forming the highest part of the upper side. Upper jaw with 3 teeth 

 in the single series, the first very small, the second very large, the 

 third rather small ; the double series composed of 3 small inner 

 teeth, and about 9 very minute outer ones, all placed very far back, 

 extending round the base of the lower jaw. Lower jaw curved 

 outwards and strongly upwards towards the apex, with 2 teeth, the 

 anterior tooth large, the posterior one minute (in one of the jaws tin 1 

 large tooth bears a minute denticle at its base in front ; see fig. 7). 



Mandibles in $ (figs. 6, 6rt) much larger and stouter, the area at 

 the base of the upper fang small and minutely granular over its 

 surface ; terminal fang directed downwards but scarcely outwards, 

 compressed and rather flat on each side, not sharp-edged above ; the 

 basal half of the fang strongly dilated inwards, the dilated part 

 sulcate above, with the upper median edge granular, terminating 

 anteriorly in a strong angle against which the lower jaw closes. 

 Upper jaw with two small, isolated, posterior teeth in the single 

 series, the uppermost very minute, situated alongside of the anterior 

 bend of the flagellum (both teeth are shown in fig. 6, one above and 

 one below the procurrent portion of the flagellum) ; the double 

 series composed of 3 inner and about 7 outer teeth, and very 

 far back. Lower jaw long, curved strongly upwards but not at all 

 outwards, with one low tooth in the middle. 



Flagellum completely hidden between the mandibles. Basal 

 enlargement in the form of a thin-walled cup with thin circular 

 rim and movably attached at the centre of the convex surface 

 to the lower part of the inner face of the upper jaw, almost 

 just behind the lowest of the two teeth in the single series ; 

 concavity of the cup facing inwards and partially covered by a 

 narrow thin lamina in the upper part. From the anterior edge of 

 the cup a procurrent portion of the flagellum, exceeding the 

 diameter of the cup in length, takes its origin and is provided along 

 its lower edge with a high, thin keel. On about a level with the 

 hind edge of the granular area at the base of the upper fang the 

 flagellum curves upwards and then backwards, as in Solpuga ; the 

 recurrent portion subulate, curving downwards posteriorly and 



