94 
Annals of the Transvaal Museum 
anterior legs : it differs from the latter in that the first metatarsus is not spined 
over the mesial portion of its inferior surface, as well as in the ocular characters, 
and from the former in the stronger development of spines on the anterior 
surface of patella III and possibly also the weaker spinulation of tarsus I may 
serve to distinguish it from spinipes. 
The female approaches schonlandi rather than spinipes in the ocular 
characters, but differs from the former in the weaker development of spinules 
on the upper surface of metatarsus I : it differs from spinipes in the absence of 
spinules from the distal portion of the tibia of the palp. 
The female also seems to present considerable points of resemblance to the 
Port Elizabeth species S. castaneus Purcell, which was based on a single female 
example. The relationship of these two species to each other cannot be 
determined until male and further adult female examples of castaneus are 
available. For the present it must suffice to separate them mainly on the 
ocular characters, and judging from a female example taken near to the beach 
at North End, Pt. Elizabeth, the band of spinules on the upper surface of 
metatarsus I is more strongly developed in castaneus, reaching one-quarter of 
the length of the segment. 
Male. 
The keels of the carapace are very much flattened : the raised area, repre- 
senting the lateral keel, is broadly and finely plicated transversely, the plicated 
area extending forwards to the anterior border of the carapace but posteriorly 
only to a point about midway between the anterior margin and the fovea. The 
median keel is also plicated in its anterior portion up to the region of the 
anterior median eyes: it is distinct throughout and posteriorly can be traced 
to the fovea as a faint and somewhat irregular ridge. The concavities included 
between, these ridges are very shallow, almost obsolete. 
Anterior median eyes rather less than a diameter apart, and the distance 
between the anterolateral and anteromedian eyes is a trifle less than the 
distance between the anteromedians. 
Tarsus I with 4-6 spines anteriorly, and 6-7 on the posterior side. Meta- 
tarsus I without trace of scopula, and no spines over the mesial portion in- 
teriorly. Patella III with a strip of comparatively numerous and fairly strong 
spines extending from base to apex on the anterior side, those near the distal 
edge being longest and strongest. There is a group of strong spines at the distal 
end of tibia III anteriorly. Anterior surface of tarsus IV with spines through- 
out its length, except in the basal fifth or sixth : posteriorly with eight or nine 
spines. 
The upper surfaces of the body and appendages are black, except the distal 
portions of the legs and palps which are brown. 
Length of carapace 7 -8, breadth of carapace 7, length of patella of palp 
2-85, of patella I 3-25, of tibia I 5. 
Female. 
There are no spinules at apex of tibia of palp superiorly, and no spines nor 
spiniform setae (sometimes two or three bristles) at apex of metatarsus III 
inferiorly. The patch of spinules on the upper surface of metatarsus I ex- 
tends over about one-sixth (occasionally as much as one-fifth) of the length of 
the segment, and this patch is rather longer than that at the apex of tibia I. 
On the inferior surface of metatarsus IV are usually several weak spines 
which are ventral members of the band on the anterior surface: these are not 
