164 Annah of the South African Museum. 



devoid of granules in the mesial parts, or the fine wrinkles may he 

 crenulated or even split up into granules in places in the posterior 

 segments, and in one specimen the granules predominate in the third 

 and fourth sternites, are plentiful in the second, and there are even 

 a few in the first sternite. In the ad. $ mentioned under (e) above 

 the sterna are equally weakly granular and finely wrinkled in the 

 mesial part of each of the first four segments. In the remaining 

 <? specimens the first four abdominal sternites vary as above, 

 excepting that the first is often almost smooth, and always devoid 

 of granules in my specimens. In one ad. 3 specimen all the 

 sternites, including the fifth, are entirely devoid of granules in the 

 mesial part, being transversely furrowed instead. 



The length of the carapace in the ad. $ is either equal to that of 

 the first two caudal segments, or it somewhat exceeds the latter. 



OPISTHOPHTHALMUS CRASSIMANUS, n. sp. 

 Adult Females from Jackalswater (recently killed, in S2)irits). 



Colour. Brownish yellow or yellowish brown ; carapace uni- 

 coloured or the interocular area slightly paler ; the anterior part of 

 each tergal segment, the distal portion of the mandibles and the 

 vicinity of each group of eyes on the carapace blackened or olive- 

 green ; the granules on the crests of the palps and on the upper 

 surface of the hands reddish brown or nearly black ; anterior caudal 

 segments and last abdominal segment with four longitudinal black 

 stripes on lower surface ; fourth caudal segment olivaceous or 

 blackened below and at the sides, generally with pale patches 

 between the keels ; fifth caudal segment blackened or olivaceous on 

 all sides, with numerous small pale spots between the keels ; vesicle 

 infuscate, with two pairs of pale longitudinal stripes ; maxillary pro- 

 cesses of second pair of legs somewhat infuscate along its median 

 half ; legs pale yellow, their anterior surface brownish in the middle ; 

 fingers of palps reddish brown or nearly black. 



Carapace longer than wide, as long as the first and second caudal 

 segment and three-fourths of the third ; the greater part of the upper 

 surface perfectly smooth and shiny from the anterior to the posterior 

 margin, only the deflected lateral parts, and occasionally also the 

 median groove, finely and often very sparsely granular, without any 

 coarse granulation along the lateral borders of the interocular area ; 

 length of carapace 3J-3^ times the distance of median eyes from the 

 posterior edge ; median groove widened just in front of the median 



