JOURNAL OF CONCHOLOGY. 30I 



DESCRIPTION OF A NEW SPECIES OF ENNEA FROM 



WEST AFRICA. 



By EDGAR A. SMITH, F.Z.S., 



(Zoological Department, British Museum). 



The species about to be described belongs to that section of 



the genus to which Dr. Pfeiffer gave the name Edentidina, on 



account of the absence of teeth and pUc^e upon the walls of the 



aperture. 



Ennea Martensi. 



Testa perforata, ovata, ^nedioaiter crassiusci/la, cereo-albida, nitens, 

 oblique arciiativi et co7ifertivi lirata, striis spiralibiis rugulosis 

 in interstitiis sculpta ; anfracius j,convexiiiscnli,vltimus supra 

 aperturavi siiblcBvigatt/s et politus, postice oblique descendens, 

 prope labnim breviter subitoque ascendens, liris longitudinalibus 

 versus basim absoletis. Apertura lata, magna, /g longitudinis 

 totius subcequans ; columella obliqua, rectilinearis, nee plicata 

 nee contorta. Peristoma album, incrassatum, undiqtie expan- 

 suni et breviter reflexum, margine labrali superne arcuato, 

 inferne obliquo, cohmiellari rectiusculo, subperpendiculari. 

 Longit. 41 fnillini., diani. 22\. Apertura longit. ig, latit. IJ^. 



Hab. — West Africa. 



This fine species of Ennea, forming part of the Cumingian 

 Collection, is closely related to E. insignis of Pfeiffer, yet perfectly 

 distinct. The latter species (the type of which, described in the 

 "Proceedings of the Zoological Society" for 1856, is in the British 

 Museum) is not perforated, has excessively fine oblique striation, 

 has more distinct spiral sculpture than E. Martensi and the 

 columella is plicate at the lower part, whilst in the present species 

 this feature is wanting. 



In the " Monatsberichte der Akademie der Wissenschaften 

 zu Berlin" for 1876, Dr. E. von Martens has given a figure of the 



