402 Annals of the South African Museum. 



First antenna, 1st joint largest, 2nd and 3rd subequal, each equal 

 to |- the 1st, flagellum with 10 indistinctly separated joints. 



Second antenna, 1st joint acutely produced to end of 2nd, apex with 

 a denticle and 4 setae, 3rd rather longer than 1st plus 2nd, scale of 

 equal width throughout, 4th very short, 6th a trifle longer than 5th, 

 flagellum longer than peduncle, with many joints. 



Mouth-parts as in crassimonus ; upper lip distally feebly emarginate, 

 spine-row with 6 spines in left mandible, 14 in right, 6th joint of 

 maxilliped less abruptly narrower than 5th, inner plate with 6 coupling- 

 hooks. 



First peraeopod elongate, 2nd joint longer than 3rd-5th together, 

 anterior margin with a strong laminar tooth at base in the adult, 3rd 

 anteriorly produced to middle of 4th, 4th likewise produced nearly to 

 end of 5th, 5th not produced, 6th as long as 2nd, oblong, widening 

 very slightly distally, inferior margin slightly sinuous, palm short, 

 transverse, with 2 strong, closely apposed, apically blunt teeth, a 

 smaller tooth near the hinge, defining tooth very strong, apically sub- 

 acute, palm and hind margin laminar and thinner than rest of joint, 

 as in crassimanus, finger projecting beyond defining tooth, inner margin 

 with a few simple spiuules, outer margin setose, inferior margins of 

 4th-6th joints densely setose. 



First peraeopod ? shorter, 2nd joint without basal tooth, 3rd-5th 

 joints as in male, 6th not longer than 3rd plus 4th, oblong, widening 

 distally, width f length, inferior margin straight, palm slightly convex, 

 transverse, nearly as long as inferior margin, with one small tooth in 

 middle, and a series of spinules, defining angle rounded, with one 

 strong spine, finger matching palm, inner margin with serrate spinules, 

 inferior margins of 4th-6th joints densely setose. 



Second to seventh peraeopods as in crassimanus. 



First pleopod , peduncle with one pair of small setae, rami broader 

 than in crassimanus, widening for -f length, then strongly contracting, 

 outer margin thus angular, with surface sculpturing but with marginal 

 setae only. Operculum in ? tapering to a bifid apex. 



Best of the pleopods normal. 



Uropod, outer ramus shorter than inner, both with long simple 

 setae. 



Length: <$ 6 mni., ? 5 mm. ; breadth: <$ 1'5 mm., $ T25 mm. 



Colour . Creamy-white, eyes black. 



Locality: Buffet's Bay (False Bay). 1/3/15. (K.H.B.) 2J^, 

 3 ? ? (1 ovigerous), 4 juv. (S.A.M. No. A3309.) 



This species comes under A. a. in Hausen's key and is most closely 

 allied to crassimanus Brnrd. 



