418 Annals of the South African Museum. 



DYNAMENELLA OVALIS, n. sp. 

 (Plate XXXV. D.) 



1913. Sphaeromidao inc. sed. (2) Tattersall, Tr. Roy. Soc. Edinb. 

 vol. 49, pt. 4, p. 888, pi. figs. 9, 10. 



Very similar to D. kraussi, but well differentiated by its smaller 

 size and oval shape, the width being |- of the length instead of i 

 as in the latter. Also the body is much flatter and the epirnera 

 do not continue in the same curve as the dorsa, there being a 

 distinct though shallow groove between them. The notch at the 

 end of telson is shallower. 



Epistome rather stouter, inner margins of arms convex, not 

 straight or slightly concave, ends of the arms squarely, not 

 obliquely, truncate. 



Third joint of 1st peraeopod not strongly expanded at outer 

 apex. 



First to third pleopods with 4 hooked spines on inner apex of 

 peduncle. Male stylets not developed externally, $ being 

 immature. 



In other respects resembling D. kraussi. 



Length: $ 7'5 mm., ? 5'5 mm. ; breadth : 3 5mm., 5 3 mm. 

 Colour : Olive-brown, with fine darker mottlings and minute black 

 specks, peraeon with scattered metallic golden specks, peraeopods 

 not dark. 



Locality : St. James, False Bay. June, 1912. (K.H.B.) 1 $ , 

 3 ovigerous $5,2 juv. (S.A.M. No. A2444.) 



Dr. Tattersall has kindly confirmed the identity of my specimens 

 with the single ? obtained by the ' ' Scotia ' ' in Saldanha Bay. 



DYNAMENELLA MACROCEPHALA (Krauss). 

 (Plate XXXV. C.) 



1843. Spliacroma macrocepliala, Krauss, Die Siidafrik. Crust, p. 65. 

 1910. ,, Stebbing, Gen. Cat. S.A. Crust. 



p. 432. (Spliacromidae incertae 



sedis.) 



Krauss' brief description is as follows : " Body somewhat 

 flattened, smooth, light green with darker spots. Head very broad 

 and nearly as long as first two thoracic segments. Abdomen very 

 convex, obscurely bituberculate, triangular, the apex shallowly 

 notched. Branches of the uropods as long as the abdomen, the 

 upper [ = inner] oblique and rounded, the lower [ = outer] elongate 

 oval. In algae on the Natal coast. Length 2 lines." 



