396 Annals of the South African Museum. 



laterally beyond telson, which tapers to a narrow truncate apex, 

 without lateral teeth, dorsal surface smooth. 



Antenna 2, 2nd joint with an entire straight outer margin, lower 

 margins of 3rd-5th joints not tubei'culate in J 1 , flagellum of a single 

 joint with terminal uuguis, lower margin with 2 rows of denticles, 

 with a slightly larger denticle at the base of the unguis in ? only. 



Peraeopods 2-4 relatively long, especially in ? , 5th joint reaching 

 the lateral process of head. 



Peraeopod 5, 2nd joint in ? equal to length of segment 4, longer 

 than all the other joints together, in <$ lost ; peraeopods 5-7 with 

 a small setiferous elevation in the middle of hind margin of 2nd joint, 

 most marked on peraeopods 6 and 7, especially in g . 



Three pairs of marsupial plates, that on 4th segment with setulose 

 inset-piece extending nearly the whole length of posterior margin. 

 Pleopods 1 and 2 and male appendage mutilated. 

 Concealed ramus of uropod with 3 setae in <$ , 3-4 in 9 . 

 Length: $ 10 mm., ? 9 mm. ; breadth: 2 mm., 5 2'5 mm. 

 Colour : In spirit yellowish, eyes reddish or black. 

 Locality: Table Bay, 22 fathoms. 1 somewhat bruised and muti- 

 lated (J; Cape St. Francis NE., distant 29 miles. 75 fathoms. 

 1 ovigerous ? . s.s. " Pieter Faure." 5/3/00 and 19/2/02. (S.A.M. 

 Nos. A3830 and A4058.) 



This species is easily distinguished from the other species by the 

 uuuotched 2nd joint of antenna 2, the 2nd joints of peraeopods 5-7 

 and the laterally projecting 3rd pleon segment, also the acute side- 

 plate on segment 4 in the $ . 



ARCTURELLA BREVIPES u. sp. 

 (Plate XVI. Fig. 27.) 



Female. Body glabrous, very faintly shagreened, greatly depressed. 

 Head wider than long, lateral processes rounded, with a small point on 

 outer margin near the apex, dorsal surface smooth. Eyes large, oval. 

 Peraeon segment 1 with very indistinct suture separating it from head ; 

 segments 2 and 3 gradually widening ; segment 4 much wider than 

 long, width across anterior margin being equal to length of segments 

 1-4 together, narrower posteriorly, sides distinctly sinuous, surface 

 smooth ; segments 5 and 6 with rounded side-plates ; segment 7 with 

 subacute side-plates ; all the segments smooth. 



Pleon segments 1-3 very slightly wider than telson, 3rd not projecting 

 laterally, telson tapering to a subacute truncate^ apex. 



