88 



JOURNAT. OF COXCHOI.Or.Y, VOI,. l6, NO. 3, JANUARY, I92O. 



If: 



lip projecting above somewhat angularly ; columella sloping but 

 very slightly curved. Length, 3 mm. ; diam. max., i'4 mm. 



Hab., Port Alfred (one). 



Type, in coll. Turton. 



A narrow elongate shell distinguished from the other South 

 African members of the genus by the two strice at the posterior 

 end. The figure makes the shell and aperture too broad. 



Marginella walvisiana sp. nov. (f. 3). 



Shell very closely allied to M. capensis Krs., but larger, of a 

 much more solid and opaque texture, with a more acuminate spire. 

 It is rather differently proportioned, being l)roader in proportion to 

 length, and has a very much broader aperture, especially anteriorly. 

 The outer lip is strongly thickened and arcuate ; colour pale brown 

 with faint traces of bands. Length, 16 mm. ; diam. max., 8 mm. 



Hab., living at Walvis Bay (Burnup). 



Type, in British Museum. 



Nine specimens of this species are before me, all exactly similar, 

 except that tlu-ee are an albino variety — as well as typical examples 

 of capensis collected at the same time. M. avibigua Bavay is a 

 somewhat similar shell, but nearer to capensis. 



J. D. DeanV^/. 



