Annals of the Transvaal Museum 59 
Blossia clunigera Kraepelin, 1908. Jena. Denkschv. xm. p. 275, fig. 7. 
The type was taken at Steinkopf in Little Namaqualand. 
Blossia obscura Kraepelin, 1908. Jena. Denkschv. xm. p. 278. 
This is based on a female from Khakea in the Kalahari. 
Blossia Jilicornis Hewitt, 1913. Annals Transvaal Mus. iv. p. 158, figs. 21 and 22. 
The types were taken at Alt Wasserfall in Gt Namaland. 
Blossia laticosta Hewitt, 1919. Annals Transvaal Mus. vi. p. 64. 
The type was taken at Blauwkop in the Zoutpansberg dist. 
Key to the S. African species of the genus Blossia Simon. 
A. Flagellum long and slender, widest near the base, tapering more 
or less gradually to the apex, and when directed forwards extending 
considerably beyond the tip of the upper jaw: basally, it is membranous 
with in-curved edges forming a more or less inflated capsule, with a 
greatly elongated aperture on the side adjacent to the jaw: distally, this 
gradually becomes a flattened rod. 
a. On the lower margin of the fang of the upper jaw, between 
the tip of the fang and the first large pointed tooth, there is a tooth- 
like projection formed by a laterally compressed obtuse lamina. 
1. Distal dorsal bristle with proximal half stout and minutely granular 
(except at the base), the distal half more slender, subulate, and smooth. 
Flagellum suddenly acuminate at the apex when seen from the side. 
B. karrooica Purcell. 
2. Distal dorsal bristle hardly reaching so far as the first pointed tooth, 
slender and quite devoid of granulation in any portion of its length, being 
precisely similar to the other bristles of the neighbourhood. Distal portion 
of the flagellum more slender than that of karrooica, and not so suddenly 
acuminate at the apex. B. maraisi Hewitt. 
b. No pronounced tooth-like lamina between the tip of the 
upper jaw and the first large tooth (it is represented by a minute 
tubercle or slight convex dilatation in echinata). 
3. Distal dorsal bristle short 1 , hardly reaching so far as the first tooth, 
its surface minutely granular. Basal half of flagellum of more or less uniform 
width, thence becoming gradually attenuated towards the apex where it is 
slightly hooked. B. setifera Pocock. 
4. Distal dorsal bristle almost reaching to the tip of the fang, its surface 
minutely roughened in the distal half. Flagellum with a broad basal half and 
a rod-like distal half fairly sharply differentiated. Dorsal edge of upper jaw 
furnished with a small sharp tooth which is almost midway between the base 
of the distal dorsal bristle and the tip of the fang. B. echinata Purcell. 
5. Distal dorsal bristle strong and boldly curved, reaching about as far 
as the anterior border of the second tooth, tapering more or less uniformly 
throughout its length, and not very strongly denticulated on any part of its 
surface. Flagellum very much broader towards the base than in the distal 
1 This character is inferred from the figure of the type. 
