Contributions to the Crustacean Fauna of South Africa. 395 



a single joint, with 2 rows of denticles along the lower margin, that 

 on inner side containing a larger tooth about half-way along, a large 

 stout tooth on the lower margin at base of the terminal unguis. 



Peraeopods 2-4 relatively long, apex of 5th joint of peraeopod 4 

 nearly reaching apex of antero-lateral angle of head. 



Peraeopod 5, 2nd joint f length of segment 4, shorter than all the 

 other joints together. 



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

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



Concealed ramus of uropod with 5 unequal setae. 



Length : Ovigerous $ 8'25-10 mm. ; breadth : 2'25 mm. 



Colour: In spirit yellowish or pinkish, eyes dark reddish. 



Locality : Umkomaas River NW. by W. | W., distant 5 miles. 

 40 fathoms. 1 ovigerous ? on the Gorgonacean Villogorgia mauri- 

 tiensis Ridley ; Durnford Point NE. by E., distant 9 miles. 13 fathoms. 

 12 juv. $ $ . s.s. " Pieter Faure." 31/12/00 and 8/2/01. Natal 

 coast. 6 fathoms. 1 ovigerous ? , 3 juv. " on coral." (H. W. Bell- 

 Marley.) May, 1917. (S.A.M. Nos. A4145, A4143 and A4567.) 



ARCTURELLA LONGIPES u. sp. 

 (Plate XVI. Figs. 25, 26.) 



Body glabrous, minutely shagreened, greatly depressed, especially 

 in 9 . Head, together with peraeon segment 1, as wide as long, the 

 lateral projections not produced beyond the antero-lateral point, dorsal 

 surface with 2 small acute tubercles between the eyes in , smooth 

 in 9 . Eves large, oval. Peraeon segment 1 with moderately distinct 

 suture separating it from head ; segments 2 and 3 widening gradually 

 in $ , segments 1-3 apparently each with a small median tubercle in 

 <$ , but these portions rather bruised, smooth in 9 ; segment 4 longer 

 than broad (10 : 8) in ^, broader than long in 9 (width equal to 

 combined length of segments 3 and 4), in J oblong with equal 

 posterior and anterior margins and nearly straight sides, smooth 

 except for one median hook-like tubercle near the posterior margin, 

 directed backwards, in ? anterior margin greater than posterior, sides 

 slightly sinuous, entirely smooth ; side-plate of segment 4 in $ pro- 

 jecting forwards as an acute point ; segment 5 not greatly larger than 

 6 or 7, 5 and 6 with rounded side-plates completely visible in dorsal 

 view, 7 with subacute postero-lateral angles, all 3 segments smooth in 

 both sexes. 



Pleon with first 3 segments widening gradually, 3rd projecting 



