South African Crustacea. 77 



joints are about equal in length and together form a sort of cup for 

 the sixth joint. 



The first and second peraeopods are alike, having the fourth joint 

 broad, nearly twice as long as the fifth, which is oval with the 

 narrow end below, carrying two stout spines ; the narrower but 

 longer sixth joint is likewise armed with some stout spines, and 

 the finger is very slender. The third peraeopods have the second 

 joint only moderately expanded, the hind margin straight, the front 

 irregularly convex, fringed with setaa ; the fourth joint as broad as 

 the second, as broad as long, and like the two following joints well 

 furnished with spines ; the fifth joint rather longer, less broad ; the 

 sixth again longer, but narrow ; the finger smoothly slender, curved 

 at the tip. In the fourth perseopods the second joint is broadly 

 oval, fringed with setae in front, the fourth and following joints 

 considerably larger than in the preceding pair, though rather similar 

 in pattern, but only the fourth joint and not the fifth narrowing 

 downwards. The small fifth pereeopods have the hind margin of the 

 second joint serrate ; all the other joints are very small, from the 

 fourth to the end successively shorter, the third, fourth, and fifth 

 pressing close to the margin of the second. The branchial vesicles 

 are simple. The marsupial plates in the specimen were narrow, 

 probably not at full development. 



The pleopods have groups of spines on the surface of the 

 peduncles. The coupling spines are small, the rami subequal, 

 the outer with about 18, the inner 14 joints. The first uropods 

 have the peduncle subequal to the outer ramus, which carries four 

 spines at and near the apex, while the rather shorter inner ramus 

 has five spines along the inner margin and a stout one at the 

 apex ; the second are shorter, with spines along the inner margin 

 of peduncle and each ramus ; the third have the peduncle not 

 longer than that of the second pair, but the narrow two-jointed 

 outer ramus considerably longer than that of the first pair, the 

 second joint rather long, half the length of the first, the inner ramus 

 nearly as long as the first joint of the outer, both rami tipped and 

 otherwise armed with many long setae. 



The telson is not longer than broad, the two halves closely united, 

 with a spine at the outer part of each broadly rounded apex, and 

 two feathered setae high up on each outer margin. The telson is 

 not so long as the peduncle of the third uropods. 



Length, about 8 mm. 



After long preservation in spirit the specimen above described was 

 conspicuous among many different species by its crimson colouring, 



