2SN 



DISCOVERY REPORTS 



Iphinoe africana Zimmer. 



Zimmer, 1908, p. 163. 



Occurrence : 



St. WS 970, 1 00-0 m., 1$, night station. 



St. WS 971, 100-0 m., I juv., night station. 



St. WS 980, 100-50 m., 1$; 50-0 m., i(J, i$, night station. 



St. WS 988, 50-0 m., 1 (J, 1 ovig. $., night station. 



St. WS 989, 50-0 m., 8c?c?, 3 ovig. $$, ca. 230$ and juv., night station. 



St. WS 1063, 50-0 m., 1 (J, night station. 



Stebbing (1913) considered /. africana to be synonymous with /. brevipes Hansen (Hansen, 1895). 

 However, Zimmer (1942) pointed out that there were well-marked differences between the females, 

 and Fage (195 1 b) was able to confirm these differences for the males. The females in these collections 

 differ from Zimmer's description in that they have from 0-5 small teeth on the dorsal crest of the 

 carapace, and not 13-14, but I am able to confirm the other differences mentioned by Zimmer be- 

 tween brevipes and africana, as I have examined several specimens of brevipes from the British Museum 

 (Natural History). 



o J 



Fig. 5. Front end of carapace from the side of br, Iphinoe brevipes, adult female, and af, Iphinoe africana, ovigerous female. 



In /. africana the front of the carapace is distinctly toothed above the antero-lateral angle, and there 

 are subsidiary teeth on either side of the central tooth on the hinder end of the telsonic somite. In 

 /. brevipes the front of the carapace shows only slight serrations, while there are two central teeth on 

 the telsonic somite. In addition the front of the carapace is a different shape in the adults of the two 

 species (Fig. 5). 



Family DlASTYLIDAE 



Genus Diastylis Say, 1818 



Diastylis rufescens sp.n. (Figs. 6 and 7). 



Occurrence : 



St. WS ioo2, 50-0 m., icJ, 8?$, 17 juv., night station. 

 St. WS 1050, 50-0 m., 1 <$, 2$$, night station. 



Adult female. Length 8-5 mm. Carapace similar in form to that of D. laevis Norman (Sars, 1900, as 

 D. rostrata) ; surface smooth with scattered hairs ; antero-lateral angle not very prominent, with fine 

 serrations extending some distance posteriorly; carapace about t.\ as long as high, \\ as long as broad. 

 Eye well developed. 



