44 



Defrancia linearis, Mont. 



Defrancia linearis, v asqiialis, Jeff. 

 Defrancia reticulata, Renier. 



Defrancia reticulata, v formosa, Jeff. 

 Defrancia purpurea, Mont. 



Defrancia purpurea, v Philberti, Mich. 



Defrancia purpurea, v oblonga, Jeff. 

 Genus II. — Pieurotoma, Lam: 

 Pleurotoma striolata, Phil. 

 Pleurotoma attenuata, Mont. 

 Pleurotoma costata, Dotwvan. 

 Pleurotoma rugulosa. Phi/. 

 Pleurotoma brachystoma, Phil. 

 Pleurotoma nebula, Mo?it. 



Pleurotoma nebula, v lactea, Jeff. 



Pleurotoma nebula, v abbreviata, Jeff. 



Pleurotoma nebula, v elongata, Jeff. 

 Pleurotoma l/evigata, Phil. 



Pleurotoma laevigata, v minor, Jeff. 

 Pleurotoma carinala, Biv. 

 Pleurotoma nivalis, Lov. 

 Pleurotoma septangularis, Mont. 

 Pleurotoma rufa, Mont. 



Pleurotoma rufa, v lactea, Jeff. 



Pleurotoma rufa, v semicostata, Jeff. 



Pleurotoma rufa, v. ulideana, Tho?np. 



Pleurotoma rufa, v Cranchii, Brown. 



Pleurotoma rufa, v angusta, Jeff. 

 Pleurotoma turricula, Mo7it. 



Pleurotoma turricula, v rosea, Lov. 

 Pleurotoma Trevelyana, Tiirt. 



Family Vi.— CYPR/EID/E, //m. 



Genus I. — Margineila, Lam. 

 Marginella l^vis, Don. 



Margineila laevis, v oblonga, Jeff. 



