South African Crustacea. S3 



of front margin, third and fourth joints very short, fifth and sixth 

 joints subequal in length, spinose on both margins, the broad hinder 

 prominence of the fifth having pectinate spines as well as long 

 smooth ones, the sixth with gently convex front margin, the long, 

 finely denticulate palm forming a much stronger convexity with the 

 hind margin, from which it is marked off by palmar spines and the 

 cessation of the denticulation ; finger smooth, curved, matching 

 the palm. 



Second gnathopods much stronger than the first; second to fourth 

 joints nearly as in preceding pair, fifth joint short, cup-shaped, sixth 

 massive, widening to the palm, which is finely denticulate on either 

 side of a somewhat semicircular cavity of variable depth and defined 

 by a strong tooth, within which the finger closes, inner edge sub- 

 marginally setiferous, outer edge proximally indented at four points 

 for minute spines ; finger strong, curved, inner margin with a small 

 projection over the palmar gap. 



First and second peraeopods, slender, similar, but the first 

 decidedly longer than the second, the second joint slightly curved, 

 carrying long setae at some points of the hind margin ; the finger 

 short, abruptly truncate at junction with the small nail. 



Third to fifth peraeopods stoutly built, fourth the longest, fifth 

 longer than third ; second joint with hind margin strongly dentate, 

 especially and irregularly in the fifth pair, fourth and fifth joints 

 broad, with numerous spines, the sixth narrow but also spinose, all 

 these joints having the front margin flattened ; finger not very large, 

 with regular curve to the nail. 



Pleopods. Peduncle large, with apical process, the coupling hooks 

 slender ; the rami narrow, outer the shorter, having in the first pair 

 24 joints, while its considerably longer companion is 23-jointed, 

 with 4 cleft spines on inner margin of the first joint. 



First uropods with peduncle subequal to inner ramus, outer rather 

 shorter, all with spines at intervals ; second pair with rather shorter 

 but stouter peduncle, as long as the inner ramus, the outer notably 

 shorter ; third pair with short peduncle, carrying on the surface 

 facing inwardly a row of spinules and a tubercle beset with spines 

 and spinules ; the rami broad, equal, strongly spined apically and on 

 other parts ; they are longer than their peduncle, but shorter than 

 the other rami. 



The telson is nearly as long as the peduncle of the third uropods, 

 cleft to the base, the almost cylindrical halves somewhat divergent, 

 with the truncate apices beset with terminal spines, the sides smooth 

 except for a group of little spinules high up on the outer margin. 



