10 



PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



anfractus 4, ad suturam impress!, oblique filoso-striati ; apertura sub- 

 circularis ; labrum subexpansum ; operculum testaceum, arctispirale. 

 Diam. maj. 27-5, min. 19-5 mm. ; alt. 13mm. 



A very depressed species. Two others only are recorded from Peru, 

 viz. N. Bartletti, Pfr., and connivetis, H. Adams, both quite small 

 shells. 



EXPLANATION OF PLATE I. 



