37 

 Family XIII.— TURRITELLID>C, Clark 



Genus Turritella, Lam. 

 TURRITELLA TEREBRA, L. 



Turritella terebra, v nivea, Jeff. 

 Turritella terebra, v gracilis, y^ 



Family XIV.— TRUNCATELLID/E, Gray. 

 Genus Truncatella, Risso. 

 Truncatella truncatula, Drap. 



Family XV.— SCALARID/E, ^r^^^. 



Genus Scalaria, Lam. 

 Scalaria turton.e, Turt. 

 Scalaria communis. Lam. 

 Scalaria Trevelyana, Leach. 

 Scalaria clathratula, Adatns. 

 Scalaria pseudoscalaris, Broc. 



Family XVI.— PYRAMIDELLID/C, Gray. 



Genus I.— Aclis, Lov. 

 AcLis UNiCA, Mont. 

 Aclis ascaris, Tiirt. 

 Aclis supranitida, S. Wood. 

 Aclis Walleri,/"^^. 

 Aclis Gulson.e, Clark. 



Aclis Gulsonft, v tenuicula, y^^ 



Genus II.— Odostomia, Flem. 

 Odostomia minima, y^ 

 Odostomia nivosa, Afojit. 

 Odostomia truncatula, Jeff. 

 Odostomia clavula, Lov. 

 Odostomia 1.vki^\, Jeff. 

 Odostomia albella, Lor. 

 Odostomia rissoides, LLanley. 



Odostomia risso'ides, v alba, Jeff. 



Odostomia rissoides, v nitida, Aid. 



Odostomia rissoides, v olabrata, F. and // 



