106 Tratisactiojis of the Bsyal Society of South Africa. 
Carapace. — G-raiiular throughout ; rather finely so in front of the median 
eyes ; ocular tubercle quite smooth above. 
Tergites of abdomen finely granular in their anterior half, coarsely so in 
the posterior half. The last tergite is very closely and finely granulated 
over the mesial area, and even posteriorly there are no coarse granules nor 
ridges. There are coarse granules, however, adjacent to and on the inner 
side of the dorsal keels. Between the dorsal and dorso-lateral keels the area 
is rather sparsely, but coarsely granulated. 
Tail.' — The stridulatory area of the first segment is broadly, but only 
shallowly excavated, and there is no median groove. The granulation is 
very fine throughout, and none of the granules are transversely enlarged. 
Anteriorly, the upper and descending surfaces meet abruptly, the angle 
between them being roughly about 100°. In the second segment the 
stridulatory area is quite different. It is confined to a rather narrow median 
channel and consists of a series of transverse ridges ; the ridges reach their 
maximum development posteriorly where, at the narrowest part of the whole 
area, one or two of the ridges may stretch practically right across the area. 
There is a very fine granulation on the mesial portion of the upper surface 
of the third segment, but it extends over scarcely more than half the length 
of the segment. 
Intercarinal spaces of first segment sparsely granular at the sides of the 
segment, but quite free of granules ventrally. Segments I-IV with 10 granular 
keels each, but the granulation of the inferior median keels of the first segment 
is almost obsolete, and the fourth middle lateral keel is weak and indeed 
obsolete near the anterior end of the segment. Superior keels of third and 
fourth segment strong throughout their length, of fifth segment almost 
obsolete posteriorly but anteriorly represented by 6 or 7 strong granules ; 
accessory crest of fifth segment almost obsolete, represented by 1 or 2 low 
rounded granules. Sides of segment V with scattered coarse granules 
superiorly near the obsolete portions of the superior crest. First segment a 
trifle broader than the fourth segment. 
Pectines with 36-37 teeth. 
Vesicle of moderate size, with a very deep excavation at the base superiorly. 
Hand very stout and rounded, considerably wider than the brachium. 
Movable finger about 1} times as long as the hand-back. 
Colour yellowish throughout, the last two caudal segments and vesicle 
slightly infuscated, and the spine of the vesicle dark brown. 
Measurements.— Total length 78 mm., length of carapace 9*4 mm., breadth 
of carapace 10 mm., width of hand 5*2 mm., length of hand 14 mm., width of 
first caudal segment 6*2 mm., width of fourth caudal segment 5'9 mm. 
The Durban Museum has an adult female example, also from Aus, 
collected by Mr. Gr. R. Norris. It differs from the male as follows : 
