188 An it<i/x of Hie South African Museum. 



flagellum longer than peduncle, 17-18- jointed, accessory flagellum 

 scarcely equal to 1st flagellar joint, 2-jointed, the 2nd joint minute. 



Second antenna a little more than half 1st, peduncle longer than that 

 of 1st, ultimate and penultimate joints subequal, flagellum equal to 

 ultimate peduncular joint, 5-jointed, 1st joint much the longest. 



Upper lip with rounded, entire distal margin. 



Lower lip, inner lobes well developed, outer lobes apically truncate, 

 mandibular processes well developed, subacute. 



Mandibles stout, cutting-edges tridentate, secondary cutting-edge in 

 left strong and 4-dentate, in right feeble and bidentate, spine-row with 

 2-3 spines, molar prominent, palp very slender, 3rd joint shorter than 

 2nd, tipped Avith 2 long and 1 short setae, no marginal setae on any 

 of the joints. 



First maxilla, inner plate with 3 apical setae (2 long, 1 short) , inner 

 margin nonsetose, outer plate with 9-10 spines, palp with 2nd joint 

 longer than 1st apex, with 2 teeth and ca. 8 setae. 



Second maxilla, plates equal in length, but inner narrower, and 

 without setae on its inner margin. 



Maxilliped, inner plate apically truncate, with ca. 5 obscure denticles 

 and some simple setae, a more prominent denticle and a stout spiuule 

 on inner apical angle, inner margin nonsetose, outer plate oval, reach- 

 ing to just beyond middle of 2nd joint of palp, inner margin with 

 spine-setae, palp slender, 2nd joint twice length of 3rd, which is 

 longer than 1st, 4th together with its terminal unguis equal to 1st. 



First gnathopod, 5th joint oblong, not distally widened, inferior 

 margin setose, 6th longer and wider than 5th, oval, palm very 

 oblique, nearly 3 times as long as inferior margin, scarcely any 

 denning angle, setose, a spine at f distance from hinge and a row of 

 setae at junction with hind margin, finger equal to palm. 



Second guathopod similar to 1st, but 5th joint strongly produced 

 downwards as a triangular process, wider than 6th, and setose on 

 inferio-distal margin, 6th joint as in 1st guathopod, but inferior 

 margin relatively to palm a little longer. 



First and second peraeopods not very slender, 2nd joint longest, 4th 

 longer than 5th or 6th, which are subequal, 7th passing gradually into 

 slender unguis, both together not quite equal to 6th. 



Third peraeopod, 2nd joint not expanded, hind margin with 

 scattered setules only, not apically produced, 4th and 6th subequal, 5th 

 longer, hind apex of 6th with several strong and long setae, 7th half 

 length of 6th, with a fine setule on inner apex, unguis slender, straight. 



Fourth peraeopod longer than 3rd or 5th, 4th and 5th joints sub- 

 equal, 6 shorter, otherwise similar to 3rd peraeopod. 



