Annals of the Transvaal Museum 
5i 
distance from the apex. Two distal teeth of upper jaw large, the apex of the 
second tooth being just a trifle nearer to the apex of the fourth than to the 
tip of the fang, or midway between the two. 5 . bechuanica Hewitt. 
41. Flagellum reaching to the ocular tubercle, lightly sinuate in its distal 
fifth, flattened from above near the apex and notched on the inner edge. First 
tooth of upper jaw rudimentary, separated by an interval from the second, 
which is large and posteriorly situated, so much so that the distance from the 
apex of this tooth to the tip of the fang is much greater than the distance 
between the apices of the second and fourth teeth. 5 . hamata Hewitt. 
Group III. 
Related to II C, but upper jaw with two rather long toothless spaces 
in the single series of teeth. A very well developed mane present on the 
hind legs. Tarsus II with a row of four distinct spines on the outer side 
superiorly. 
42. Flagellum with the anterior bend about in a line with the mid-point of 
the first toothless space, the recurrent portion more or less straight throughout, 
about reaching to the hind edge of the chelicera, the posterior margin of the 
basal enlargement being decidedly anterior to the mid-point of the length of 
the flagellum. S. chelicornis Licht. 
a. A dense pile of short pale hairs on the upper surfaces of the 
patella and tibia of the palp in the male. In the upper jaw, the distance 
between the first and second teeth is decidedly greater than the distance 
between the second and fourth. S. chelicornis pubescens var. nov. 
b. Similar thereto, but without a pile of short pale hairs on the 
upper surfaces of the palp. 5 . chelicornis rufescens var. nov. 
c. In the upper jaw, the distance between the first and second teeth 
is less than the distance between the second and fourth. 
5 . chelicornis macrognathus var. nov. 
43. Flagellum reaching back to a point about midway between the ocular 
tubercle and the hind margin of the basal enlargement, which is about in a 
vertical line with the mid-point of the flagellum; the anterior bend is rather 
more posteriorly situated, and above it the shaft makes a bold high curve 
(not depressed as in chelicornis ). 5 . villosa Purcell. 
Group IV. 
The single series of teeth in the upper jaw presents no long toothless 
intervals, and comprises six teeth (or only five when the normally minute 
fourth tooth is obsolete or lacking), of which only the one basally situated 
is of large size, the first tooth being small, the third also small, and the 
second still smaller. In the lower jaw, the apex of the first tooth is nearer 
to the tip of the fang than to the apex of the basal large tooth. Anterior 
bend of flagellum far forwards, in front of the first tooth, the procurrent 
portion of the shaft not sunk into a groove of the upper jaw, so that there 
is no keel nor tooth on the mesial surface of the terminal fang. Tibia of 
4—2 
