76 Annals of the South African Museum. 



much longer than second and third joints combined, carrying a 

 subapical feathered seta ; second joint small, much larger than 

 third ; primary and accessory flagella on one side respectively with 

 18 and 15 joints, on the other side each with 17 joints, the primary 

 nearly as long as the peduncle, the accessory a little shorter. 

 Second antennae with first two joints obscure, the third having at 

 the end of the lower margin a small squared process fringed below 

 with setae and marked off above by a suture ; the fourth joint 

 longer, armed with spines and setae, the fifth narrow, shorter 

 than the third ; the flagellum 21-jointed, rather longer than the 

 peduncle. 



The left mandible having cutting edge and accessory plate 

 obscurely dentate, spine-row of 10 small spines, feeble molar 

 carrying one or two spines, palp with rather broad second joint 

 unarmed, not longer than the third joint which carries a few spines 

 near the base and several fringing the obliquely truncate apex. The 

 right mandible appears to differ only by want of an accessory plate. 

 The palps in situ lie close together under the rostrum. Lower 

 lip with inner plates conspicuous, the outer lobes wide apart. The 

 first maxillae with short, wide inner plate carrying three setae on inner 

 margin of the rounded apex ; outer plate apically armed with 11 spines, 

 some of them denticulate, the two-jointed palp long, fringed with 7 

 slender spines along the apical margin, which is so oblique as almost 

 to look like part of the inner lateral edge. The second maxillae with 

 both plates broad, spinose, the outer the longer, with short spines 

 along its outer margin. The maxillipeds have the inner plates fringed 

 along the broadly truncate apex and distal part of inner margin 

 with long setae, without visible spine-teeth. The outer plates are 

 narrow, not reaching the end of the palp's first joint, and carry four 

 spines on the inner margin. The palp is very elongate, the second 

 joint the largest, the third narrowly oval, produced slightly beyond 

 the base of the narrow curved finger, which ends in a thin nail or 

 spine. 



The first gnathopods have a fusiform fifth joint, longer than third 

 and fourth joints combined, but shorter and much narrower than 

 the sixth, which is much longer than broad, widening to the squared 

 space which with its palmar spine defines the otherwise convex palm. 

 The finger is slender, curved, matching the palm, with small hyaline 

 cap over the pointed apex. The second gnathopods agree with the 

 first in regard to shape of palm and finger, but differ strikingly in 

 some respects, the sixth joint being very much larger, nearly as 

 broad as long, with the palm more oblique, while the fourth and fifth 



