Annals of the Transvaal Museum 
25 
extending back well beyond the ocular tubercle, approximately reaching the 
middle of the head-plate: apically it is bifurcated, the upper portion being 
longer, quite smooth and tapering to a point, the lower portion being short, 
blunt, and its surfaces well serrated along the angular margins. The shaft is 
also serrulated along the slight ridges which occur in its basal half, but in 
the distal half, where ridges are still more marked, the serrations are absent 
excepting near the apex: the surfaces are in fact comparatively smooth in the 
distal half but roughened in the basal half. 
The anterior bend of the flagellum is approximately midway between the 
apex of the fang and the first tooth. On the inner upper margin of the fang, 
near to the anterior bend, there is a small tooth. 
Measurements. Breadth of head-plate 11, length of patella of palp 17*8, 
of tibia and tarsus of palp 17-5, of patella of fourth leg 16. Total length of 
recurrent portion of flagellum 16-75. 
Text fig. 2, a and b. Solpuga lethalis Koch, a, Distal portion of flagellum of typical 
form from O’okiep, viewed from the outer side interiorly, b, Ditto of 5 . lethalis 
var. nov. rectus from Windhuk: more enlarged than a. 
The type of this variety is a single male example from Windhuk (G. A. 
Thompson), in. the collection of the Transvaal Museum. 
This form was evidently known to Prof. Kraepelin: in his last paper (3) 
some reference was made to the variability of the flagellum in this species and 
Venator, but unfortunately no locality data were given for the varietal forms 
there mentioned. 
Solpuga venosa Purcell, 1899. Annals S. Af. Mus. 1, p. 412, figs. 18 and 18 a. 
Kraepelin, in Das Tierreich, p. 74, fig. 41. 
The type was taken from a locality about twenty miles east of Pietersburg, 
Zoutpansberg dist. 
Solpuga fur cif era Kraepelin, 1899. Das Tierreich, p. 79, fig. 56. 
Kraepelin cites the following localities in the northern parts of S.W. Africa: 
Osire, Windhuk, Rehoboth, Walfish Bay. A description of the female is given 
by the same author (2) . 
