148 /ONITKS. 



increasing, the lust depressed, not descending, periphery very 

 obsoletely angulated, suture profound. Piam. 12 mill. 



Ixl. Sardinia. 



11. Hal inei, Poliez et Midland, is a, true Helix and = H, 

 flavida, Ziegler, but the shell which Pfeitfer and other authors 

 liave identified with that species, and which Shuttleworth has 

 figured in his " Notitue " is a Hyalina, and so may continue to 

 bear the name given it under a misapprehension. This rectifi- 

 cation is one of the numerous debts which concholoo-ical science 



O 



owes to the learning and patient research of the Marchioness 

 Paulucci (Jour, de Conch., C>, 1879). Shuttleworth's MS. name 

 opaca is a synonym. 



H. OPPRESSA, Shuttleworth. PI. 48, figs. 25-27. 



Widety umbilicated, depressed, obliquely striate, somewhat 

 shining, orange corneous; whorls 5, flattened above, more 

 convex below, periphery angulated, aperture wide. 



Diam. 11 mill. 



/.s/. Sardinia. 



H. LIBYSONIS, Paulucci. PL 48, figs. 28-30. 



Umbilicated, light yellowish corneous, discoidal, somewhat 

 flattened, subopaque, rugosely striulate above, faintly striulate, 

 somewhat shining and subtranslucent below, yellowish corneous ; 

 whorls 6, slowty enlarging, periphery obsoletely angulated. 



Diam. 10 5 mill. 



Isle of Sardinia. 



This is H. opaca of Adami and Paulucci, not of Shuttleworth. 



H. ALBINELLA, Piiulucci. PL 48, figs. 31-33. 



Moderately umbilicated, discoidal, diaphanous, opaque, fragile, 

 somewhat flattened and irregularly striulate and subcrispate at 

 the suture above, more convex and very shining below ; corneous 

 white or light corneous; whorls 6-7, regularly enlarging, the 

 last wider, depressed rounded, suture deeply impressed, very 

 narrow!}' margined. Piam. 13-HJ mill. 



Isle of Sardinia. 

 IT. NEVILLTANA, Paulucci. PL 48, figs. 34-36. 



Widety umbilicated, discoidal, diaphanous, shining, somewhat 

 solid, corneous, convexly depressed and obsoletely striulate 



