Annals of the Transvaal Museum 
45 
6. Flagellum not quite reaching the head-plate: towards the apex it 
presents a distinct bend and then bifurcates into two sickle-shaped processes, 
each finely pointed at the tip, the mesial and more slender process carrying 
microscopic setose teeth on its surface. 5. furcifera Kraep. 
B. Recurrent portion of flagellum long, usually reaching as far 
as the ocular tubercle or beyond, but not toothed nor bifurcate at 
the apex, nor serrated along its upper edge (or only faintly serrated 
immediately anterior to the distal sinus in Venator). The shaft is 
broadest at the anterior bend but is not strongly flattened there. 
7. Flagellum strongly sinuate near to the apex, proximally tying close 
above the basal enlargement which is comparatively short and its upper edge 
arched : the anterior bend lies over the apex of the first tooth or a little anterior 
thereto. Only one small tooth between the second and third large ones of the 
upper jaw, or if two are present one of them is quite minute. 
S. venatov Poc. 
8. Flagellum reaching back well beyond the ocular tubercle, straight 
throughout, or slightly sinuate towards the apex, the proximal portion situated 
well above the basal enlargement which is very long and low, the upper edge 
thereof being straight for quite a long distance. Usually two rather small 
teeth between the second and third large ones of the upper jaw, but the first 
of these may be quite minute or practically absent. A very strong develop- 
ment of long and straight stout spines on the outer and upper surfaces of the 
upper jaw. - 5. monteiroi Poc. 
C. Procurrent portion of flagellum short: shaft long and more 
or less cylindrical, at any rate over the first half of its length, some- 
times a little flattened, finely serrated for some distance along the 
upper or lower edge distally or along a curved or spiral ridge (in 
spiralicornis the serrated edge may be very short or perhaps 
obsolete). 
9. Terminal fang of upper jaw very short, with fairly strong blunt internal 
tooth dorsally against which the lower jaw closes : shaft of flagellum somewhat 
flattened, more especially at the anterior bend which is rather broad, reaching 
back a little beyond the middle of the mandible, lightly arched in the distal 
third and gradually tapering to a fine point. Anterior bend of flagellum over 
the first tooth, or the interval between the second and first teeth. A fairly 
strong development of long pointed spines on upper surface of chelicera. 
5. schlechteri Purcell. 
Terminal fang of upper jaw quite long, with a minute internal 
tooth. 
10. Flagellum reaching to a point between the middle of the mandible 
and the ocular tubercle, bearing a more or less distinct denticulate crest in 
the posterior third or fourth of its length: there are usually two light curves 
in its course, a long one proximally and a short one distally (but these are 
sometimes absolete), and between them is a shallow dorsal sinus situated in 
the distal third. Viewed from above, the distal portion of the flagellum beyond 
the sinus is practically in a line with the main axis, and the shaft is not 
abruptly narrowed at the sinus, but tapers gradually from this region to the 
apex. Anterior bend of flagellum situated over the second tooth. Basal 
