Contributions to the Crustacean Fauna of South Africa. 383 



Upper and lower lips and mandible normal ; molar rather prominent. 



Maxilla 1, inner plate with 3 plumose setae, outer plate with 9 almost 

 simple spines. 



Maxilla 2, outer and middle plates each with 3 setae. 



Maxilliped 7-jointed, 5th joint largest (except 2nd), 7th small, inner 

 plate broad, apically truncate, coupling-hook apparently absent, epipod 

 ovate-lanceolate. 



Peraeopod 1 rather stout, subchelate, 4th joint abruptly wider than 

 3rd or (to a less extent) 5th, inner margin of 4th-6th joints crenulate 

 and armed with spine-setae, 6th ovate, finger straight with small 

 accessory uuguis and a transverse row of setae near the base. 



Peraeopods 2-4 longer and more slender than 1st, 4th joint abruptly 

 wider than 5th and (to a less extent) 3rd, outer apical angle denticu- 

 late, 6th longest (except 2nd), narrow, finger length of 6th, slender, 

 with small accessory iinguis. 



Peraeopods 5-7 stout, 3rd-5th joints subequal, their outer surfaces 

 denticulate, 6th equal to 4th plus 5th, its outer margin, especially 

 apically, scabrous or denticulate, finger stout, gently curved, with a 

 slender spine in place of the accessory unguis. 



Marsupial plates on 2nd-4th segments large, overlapping. 



Male appendage or penis attached to 1st pleon segment between the 

 bases of 1st pleopods, slender, apex bilobed, reaching to the end of the 

 peduncle of 1st pleopods. 



Pleopod 1 in $ , peduncle long with 3 hooked spines near the base 

 of inner margin, inner ramus reduced, shorter than peduncle, feebly 

 setose, outer ramus not quite twice length of peduncle, tapering, 

 curved outwards at the apex ; inner margin straight and smooth, outer 

 concave before the bent apex and set with spines, which become more 

 closely set and longer distally ; apex with a little notch hidden in 

 setules ; the peduncle and outer ramus are more strongly chitinised 

 and have a yellowish tinge. 



Pleopod in $ considerably smaller than 2nd, peduncle with 3 hooked 

 spines in middle of inner margin, outer margin setose, inner ramus 

 reduced, shorter than peduncle, inner margin setulose, outer ramus a 

 little longer than peduncle, tapering to a blunt apex, outer margin 

 setose. 



Pleopod 2, peduncle short, without hooked spines, rami equal in 

 length, outer broader than inner, apices truncate, apices and outer 

 margin of outer ramus with long plumose setae ; stylet in ^ as long 

 as inner ramus, straight, distal half narrower than basal half, apex 

 subacute, margins distally minutely creuulate. 



Pleopods 3-5 ovate-lanceolate. 



29 



