Annals of the Transvaal Museum 
83 
the two sides. Again, in the typical form of coronatum, the secondary marginal 
surface, characterised by much coarser and more sparsely disposed pits than 
the dorsal surface, completely encircles the dorsal surface, although its anterior 
portion is mainly distinguishable on account of the characteristic punctuations : 
in robertsi the secondary marginal surface does not completely encircle the 
dorsal surface, being quite unrecognisable anteriorly. 
Measurements . Length of shield 10-5, breadth of shield 8, depth of marginal 
surface anteriorly 1-9, depth of marginal surface posteriorly 1. 
I Spiroctenus marleyi sp. nov. (text fig. 5). 
The type of this species is a single adult male example collected at Eshowe, 
Zululand, by Mr H. W. Bell-Marley who kindly presented it to the Albany 
Museum. It is related to spinipalpis but can be easily distinguished therefrom 
through the characters of the palp and first leg: for example, metatarsus I is 
quite devoid of a scopula. 
Legs. Tarsus IV with scopular hairs along the whole length of the segment 
on each side. Metatarsus I almost straight, with two spines at the apex in- 
teriorly, three spines on the anterior surface, four on the posterior surface, and 
one or none mesially below, but no scopula, and metatarsi II— IV are also 
devoid of a scopula: II is spined much like I but there are three spines at the 
apex inferiorly. Tibia I with a pair of distal spur-bearing tubercles, the more 
Text fig. 5. Spiroctenus marleyi sp. nov. Distal segments of male palp seen 
from mesial side. 
distal tubercle with one curved and comparatively slender spur at the apex 
and a curved spine at the base ; the other tubercle very weak, bearing a slender 
sigmoidly curved spur: in addition, there are three spines on the anterior 
surface, five on the inferior surface, one of which is apically situated, but none 
on the posterior surface. Tibia II with three spines at the apex inferiorly, 
two on the anterior surface and five on the inferior surface: III with three 
spines at the apex inferiorly, three or four on the anterior surface, three on the 
lower surface and three or four on the posterior surface. Patella I with one or 
two weak spines at the apex inferiorly, II with 2-0, III with a row of three short 
strong spines on the anterior surface and below this row there are two longer 
but weaker spines, IV with two spines on the anterior surface and one or two 
setiform spines at the apex inferiorly. 
Labium and basal portions of maxillae armed with small elongated black 
cusps: there are about fourteen on the labium. 
Chelicerae with eight or nine teeth in the inner row: the outer row includes 
six sn?.all teeth and a number of minute ones at the base of the series: the 
distal tooth of tl*e outer row is in a line with the fourth from the distal end of 
the inner row, or the interval between fourth and fifth. 
