252 Annals of the South African Museum. 



The rostrum is pretty evenly tripartite but the central tooth is 

 much depressed. A small tooth supervenes between the emerging 

 second antenna and the small eye-stalk. The antero-lateral margins 

 have no teeth, but undulations which indicate positions that four 

 teeth might occupy. The carapace has a smooth shining appearance, 

 with the H marking far to the rear in the male specimen figured, the 

 dimensions being 13 mm. in breadth by ll - 5 mm. in length. A 

 female without eggs has the carapace 14 mm. broad and 12 mm. long; 

 another, carrying numerous rather large eggs (2 mm. in longer 

 diameter), measured 16 mm. in breadth, with a length of 13'5 mm. 

 The pleou in the female is broader than in the male but not very 

 dissimiliar. 



The cornea of the eyes is pale. The first antennae have a peduncle 

 of three wide joints of irregular shapes, a very slender ten-jointed 

 flagellum accompanied by a stouter one carrying a broad mass of long 

 setae. In the second antennae the second joint is the largest, widening 

 distally like the third joint of the first pair, the following joints quite 

 short, and the slender flagellum longer than the peduncle. 



The mandible appears to have a three-jointed palp, but probably 

 the small first joint is consolidated with the second, with a more 

 abrupt bend than that shown by Ihle for Cryptodromia tumida, 

 Stimpsou. In other respects the mouth-organs of that species as 

 shown by Ihle are in near agreement with what I find in the new 

 species. Only the uppermost lobe in the second maxilla is here 

 narrower than there, and the third joint of the third maxilliped is 

 here longer than the fourth. Seen from the inner side this fourth 

 joint shows a two-fold excavation between the inner and distal 

 margins. 



The chelipeds have three nodules on the fifth joint padded with 

 short felt, of which there is a sheet on one side of the palm. The 

 short stout fingers have white tips following a pink tinge (as preserved) ; 

 seen from one side they have interlocking denticles, but end-on each 

 shows a tridentate apex, that of the fixed finger (or thumb) being the 

 broader ; the fourth joint is very broad, with one edge straight, the 

 opposite very convex. 



The second and third peraeopods are alike, with many patches of 

 felt, of rugged build, the fourth joint broad, the fifth triangular, the 

 sixth not longer, rectangular, distally clasping the narrow seventh 

 joint, which ends in a short curved horny nail. The fourth peraeopod, 

 not half as long as the second or third, is barely as long as the fifth 

 but much broader, especially as regards the fifth and sixth joints ; the 

 sixth joint is scarcely longer than broad, and ends in a minute nail. 



