378 Annals of the South African Museum. 



slight swelling on either side of junction of epimera with body- 

 segments. Epimera separated, antero-lateral angles well rounded. 

 Pleon segments 1-4 without tubercles. Telson triangular, broader 

 than long, margins straight, apex subacute in $ , rather more 

 rounded in ? , in both sexes 2 submedian longitudinal carinae 

 begin near base and extend to centre, where they break up into 

 separate tubercles which join to form a single median carina 

 (usually broken up into separate tubercles) extending almost to 

 apex. Surface of the telson in addition with a number of small 

 scattered granules. 



First antenna reaching to end of 1st peraeon segment, 1st joint 

 1| times as long as wide, 2nd joint as long as width of 1st, 3rd joint 

 f length of 1st, flagellum not quite as long as peduncle, 11-jointed 

 in $ , 9-jointed in 5 . 



Second antenna reaching to end of 2nd peraeon segment, joints 

 of peduncle increasing gradually, flagellum equal to peduncle, 

 14-jointed. 



Epistome, proximal angles bevelled off, proximal margin straight, 

 sides straight, not concave (i.e., as far as point where the arms 

 bend outwards). 



Mandibles, cutting-edge 4-dentate, secondary cutting-edge in left 

 tridentate, spine-row with ca. 10 spines in left, ca. 14 in right, 

 1st joint of palp not stronger than others, 2nd longest, 2nd and 3rd 

 with strong fringe of doubly denticulate setae. 



First maxilla, outer plate with 10 spines. 



Second maxilla, outer and middle plates both with 10 spine-setae. 



Maxilliped normal. 



First peraeopod, inner apical angle of 4th and 5th joints with 

 1 strong, apically bifid seta, 6th joint with 3 such setae and 1 doubly 

 serrulate spine at apex. 



Seventh peraeopod, fur on 6th joint weaker than in other 

 peraeopods, 4 apically bifid spines on inner margin, 5th joint 

 with apical circlet of doubly serrate spines. 



Male appendages on 7th peraeon segment short, apices blunt, 

 distance apart equal to the width of one of them. 



First to third pleopods with 4 hooked setae on inner apical angle 

 of peduncle. 



Male stylet on 2nd pleopod half as long again as ramus, tapering 

 to a fine point. 



Uropods in $ large, lamellar, extending beyond telsonic apex, 

 inner ramus broader distally than basally, apex truncate, inner 

 apical angle just beyond telsonic apex, outer ramus nearly as long, 



