OLEACINA. 105 



labida, Morel. Riisei, Pfeiff. 



Lindoni, Pfeiff. sicilis, Morel. 



obtusa, Pfeiff- solidula, Pfeiff. 



oleacea, Ferns. voluta, Chem. 



Sub-gen. nothus, Albers. 



Sbell oblong-conical, thin, diaphanous, the last whorl shorter 

 than the spire ; columella short, doubly twisted. 



Adamsiana, Pfeiff. mirabilis, C. B. Adams. 



anomala, Pfeiff. Salleana, Pfeiff. 



bulirnoides, Pfeiff. splendida, Anton. 



Sub-gen. spiraxis, C. B. Adams. 



Shell elongated ; spire acuminate, whorls longitudinally finely 

 ribbed; columella tortuous, not truncate anteriorly. 



aberrans, Pfeiff. inusitata, C. P>. Adams. 



acus, Shutil. paludinoides, D'Orb. 



brevis, C. B. Adams. pellucens, C. B. Adams. 



costulosa, C. B. Adams. perplexa, C. B. Adams. 



Sub-gen. electra, Albers. 



Shell ovate-oblong, thin, diaphanous; spire pyramidal, apex 

 obtuse, whorls numerous, the last inflated; columella short, 

 arcuated, abruptly truncated. 



amentum, Bens. frumentum, Reeve. 



Bensoniana, Pfeiff. fusca, Pfeiff. 



Ceylonica, Pfeiff. gemma, Bens. 



conifera, Ferns. Hugeli, Pfeiff. 



consimilis, Reeve. inornata, Pfeiff. 



crassilabris, Bens. Jerdoui, Bens. 



crassula, Bens. nitens, Gray. 



Deshayesii, Pfeiff. oreas, Bens. 



