Contributions to the Crustacean Fauna of South Africa. 387 



shaped, narrowing posteriorly. Antero-lateral angles of 1st peraeon 

 segment subacute. Peraeon segments 2 and 3 subequal. Peraeon 

 segment 4 in ^ exceedingly elongate and slender, a little over half 

 the total length (11 mm.), in $ moderately slender, a little less than 

 half the total length (4 mm.), the autero-lateral angles slightly 

 projecting. Segment 5 larger and deeper than segments 6 and 7, 

 which are subequal. No ventral process on either 3rd or 5th segment 

 in $. 



Pleon longer than last 3 peraeon segments together, composed of 

 2 short segments in advance of the telsou, which has an angular tooth 

 on the lateral margin and a subacute apex. 



Antenna 1, 2nd and 3rd joints both shorter than 1st, flagellum 

 longer than peduncle. 



Antenna 2, flagellum 2-joiuted, with terminal unguis, lower margin 

 with one row of denticles situate on inner side. 



Peraeopod 1 geniculate between 2nd and 3rd joints, 3rd and 4th 

 joints subequal, 5th equal to 3rd plus 4th, 6th a little shorter than 

 5th, 7th short without unguis but tipped with setae, 5th and 6th 

 densely setose. 



Peraeopods 2-4 increasing in length, projecting straight in front, 

 not geniculate, 4th and 5th joints subequal, 6th a little longer, all 

 three with long plumose setae. 



Three pairs of marsupial plates. The inset-piece of that on the 

 4th segment can here scarcely be called an "inset" piece for it is 

 equal in length to i of the total length of the plate, subtriangular 

 in shape, and separated from the main portion by a slightly angular 

 suture, nonsetose. The plate is probably not fully developed, but 

 any further development would probably affect only the transverse 

 width and not the relative lengths of the anterior and posterior 

 margins. 



Male appendage on 1st pleon segment uarrow-pyriform, tapering to 

 an acute apex. 



Pleopod 1, peduncle with 4 hooked spines on middle of inner 

 margin, rami subequal, not modified in $ . 



Pleopod 2 in , stylet half as long again as ramus, stout as far 

 as apex of ramus and then narrowing rapidly to the deeply bifurcate 

 apex. 



Uropod, concealed ramus with 2 apical setae. 



Length: $ 20 mm., 9 10 mm.; breadth: <$ 1 mm., $ 1 mm. 



Colour : In spirit pale yellowish, eyes reddish. 



Locality: Walker Point, NE. by N. \ N., distant 7 miles (off 

 Knysna). 47 fathoms. 1 uouovigerous $ ; O'Neil Peak, NNW. i W., 



