288 POPULAR CONCHOLOGY. 



Nassa - 



Natica. Nato y to swim - 



Nautilus. A little boat - 



Navicella. A little ship 



Nerita. The ancient name of a sea-shell 



Neritina. From Nerita - 



Nucula. A small nut - 



Nummulites. NummuSy money - 



Octopus. Octo, Gr., eight ; pous> foot - 

 Oliva. An olive - - 



Onchidium - 

 Oniscia - 



Orbicula. Orbiculus, a little globe 

 Orthoceras. Orthos, straight ; ceras, a horn 



OSTREA. ----- 



Otion. A little ear, Gr. - - - 



Ovula. Ovum, an egg - - - 



Paludina. Palus, a marsh 

 Pandora - 



Panop^ea. Pan, Gr., all ; opaion, an aperture (ope 



at both ends) - 

 Parmacella. A little cell 

 Parmophorus - - - - 



Patella. A dish or platter 

 Pec ten. A comb - 

 Pectenaria. Do. - 

 Pectunculus. Do. 

 Pedum. A shepherd's crook 

 Pentelasmis. Pente, Gr., five ; elasma, a plate 

 Perna. A gammon of bacon 

 Petricola. Petrus, a stone ; cola, an inhabitant 



