176 Transactions of the Royal Society of South Africa. 
Parabuthus geanulatus, H. and E. 
The granulation of the shagreened areas of the first and second caudal 
segments is somewhat variable. It is specially well developed in a form 
which occurs at Worcester, Cape Province (Gr. B. Townshend), and which 
I now distinguish under the name of P. granulatus var. nov. strenuus 
(Text-fig. 6). The first and second caudal segments are not so deeply- 
grooved along the median line superiorly as in the typical form, and the 
shagreened area of the second segment occupies a fairly deep independent 
stridulatory excavation rather than a portion of one continuous groove. In 
both of these segments, at the anterior edge of the shagreened area, th& 
surface descends obliquely, but rather more abruptly than in the typical 
form. In the first segment the shagreened area is very wide in front, and 
at the sides includes some enlarged granules which may occur also in 
typical form, but in such case those granules are well separated from the 
shagreened area, being not far from the superior crests. The shagreened 
area extends posteriorly practically to the hind margin of the segment 
and broadens out near to that margin. In the second segment the 
shagreened area is about twice as long as wide. The type is a male,, 
perhaps not quite adult, the total length being 94 mm., the length of the 
carapace 9* 75. 
Further localities for the typical form of granulatus are : Williston 
(C. Hassard) ; Upington (Miss Lennox) ; Wesselton (Mr. Swanson) ; Van 
der Byl's Kraal (Mr. Van der Byl) ; Keetmanshoop (E. Murray) ; Kaalk- 
fontein, South- West Africa (K. M. Truter). 
Parabuthus brevimanus, Thor. 
Kuboos (Miss Tucker). 
Parabuthus laevifrons, Simon, var. nov. concolor 
This variety is based on a series of specimens in the Kimberley Museum 
from Keetmanshoop (E. Murray). 
The males are practically identical with that from Aus, just described by 
me under the name of militum ; in all these males the frons is granulated,, 
but not coarsely so. 
The females have the frons quite smooth and shining, and the upper 
surfaces of the tail have also a polished appearance. The stridulatory areas 
on the tail are very similar to those of the male, and the ridges on the 
second caudal segment often extend quite half way across the area or even 
a little more ; those ridges are, however, a little stronger and longer in 
the males. The female also has a very deep excavation at the base of the 
vesicle superiorly as in males. The superior crest of the fifth caudal 
segment anteriorly includes about five or six large granules, and the sides 
of this segment are closely but rather finely granular (they are smooth or 
