10 Annals of the South African Museum. 



Sterna. First four segments smooth and polished, finely punc- 

 tate ; last segment smooth (rarely with a few of the minutest 

 granules) in the middle, coarsely or weakly granular or almost 

 smooth at the sides, w r ith a more or less distinct keel on each side 

 and a wide, usually granular, depression between each keel and the 

 lateral margin. 



Cauda moderate ; the granulation of the upper surface for the 

 most part confined to the sides, strong in the anterior and sparse in 

 the posterior segments, the fifth segment smooth above ; upper 

 crests granular, weak in the anterior segments, the terminal tooth 

 not enlarged ; upper lateral crests well developed, granular, absent 

 from the posterior half of the fifth segment ; infero-lateral and 

 median crests strong in all the segments, nearly smooth, sub- 

 crenulate, or weakly granular in segments 1-2, crenulate or 

 granular in segments 3-4, serrated in segment 5 ; sides and ventral 

 surface moderately granular between the crests ; vesicle smooth or 

 with a few minute granules at the base below. 



Palps. Crests of the humerus and its upper, anterior and lower 

 surfaces coarsely granular, the upper anterior edge rounded and 

 coarsely granular ; upper crest of brachium smooth or nearly so ; 

 anterior surface of brachium rather finely and sparsely granular, 

 posterior surface with interrupted and partly granulated longitudinal 

 crests ; hands broad, robust, cordate at base, strongly convex above ; 

 inner part of the upper surface of hand thickly covered with low, 

 rounded, anastomosing granules, the secondary keels black pig- 

 mented, weak, stronger distally ; outer part of upper surface of hand 

 with more conical granules and a stronger secondary keel ; finger- 

 keel strong and nearly smooth ; inner edge of hand bluntly granular. 



Leys. Anterior surface of posterior femora sparsely and minutely 

 granular, lower edge of femora more closely granular ; tarsi of the 

 third and fourth pairs of legs with 2 external and 4 (rarely 5) 

 internal spines below, in addition to the 4 external and 5 internal 

 spines on the terminal lobes ; these lobes scarcely or not much 

 longer than the well-developed superior process. 



Opcrculum cordate-triangular, emarginate posteriorly but not cleft 

 longitudinally, somewhat broader than long. 



Pectines with 12-14 teeth, the posterior basal angle obtuse, scape 

 free of teeth at base for about one-fifth of its length. 



Measurements in Millimetres. Total length 89 ; greatest length 

 of carapace 13^ ; width of carapace 12^ ; distance of eyes from 

 anterior median edge 8 ; width of hand 11|- ; length of hand-back 7, 

 of movable finger 13, of tail 46 ; width of first caudal segment 6, of 

 fifth caudal segment 4. 



