138 Annals of the So2ith African Museum. 



situated just midway between the median eyes and the hind margin, 

 the area enclosed between these medial crests, therefore, suddenly 

 constricted in its middle and attenuated in its anterior half ; middle 

 lateral crests weak, especially posteriorly, not reaching the medial 

 crests. Ocular tubercle finely granular between the crests. 



Tergites of abdomen all very densely and finely granular through- 

 out, with 3 finely granular crests which are not recurved in the 

 anterior segments. 



Sternites of abdomen all, including the first, densely and finely 

 granular over the whole surface, the last with 4 very distinct, finely 

 granular keels ; segment 4 wdth 2 distinct lateral and 2 very weak 

 and short, medial, finely granular keels, segments 2-3 with finely 

 granular lateral keels, but no medial keels, segment 1 without 

 keels. 



Tail moderate, with very few hairs ; segments 2-6 of equal 

 width, decidedly narrower than segment 1 ; segments 1-4 with 10 

 finely granular, well-developed crests ; segment 5 with very finely 

 granular superior and finely granular infero-median crests, the 

 infero - lateral crests finely granular anteriorly but composed of 

 coarser lobe-like teeth posteriorly, the accessory crests of the under 

 surface distinguishable in the anterior half of the segment, the 

 lateral surfaces with rudiments of an accessory crest along the 

 middle and lobate at hind margin. All the caudal surfaces densely 

 and finely granular throughout in segments 1-5 ; the vesicle weakly 

 granular, only the upper surface, a lateral and 2 inferior longi- 

 tudinal bands smooth. Upper surface grooved along the median 

 line in all the segments, and provided in segments 1-4 with a median 

 area which is more minutely and densely granu.lar than the lateral 

 portion of the upper surface ; this median area bordered on either 

 side by a row of larger granules ; upper surface in segment 5 

 strongly convex on each side of the median groove throughout 

 the whole length, the convex portions densely granular and much 

 more elevated than the superior crests. Yesicle very stout, at least 

 as wide as and very much higher than segment 5 ; the aculeus weak, 

 very short, much shorter than the vesicle. 



Pedipalps. — ^Femur finely and densely granular on all sides. Tibia 

 finely and densely granular, the granulation on the almost smooth 

 posterior surface very weak and minute, the anterior and posterior 

 sides almost parallel in the middle third. Hand slenderer than the 

 tibia, very minutely granular, the posterior surface almost smooth ; 

 hand with 2 anterior and 2 posterior weakly crenular or almost 

 smooth crests, and with rudiments of other crests on the upper 



