988 PROCEEDINGS OF THE NATIONAL MUSEUM. 
VOL. at 
Nassa xanthostoma Gray, n. n. for N. teleostoma Broderip and Sowerby. 
Natica atacamensis Philippi= Polinices dubius Recluz. 
Natica bonplandi Valenciennes= Polinices glaucus Humboldt. 
Natica chemnitzii Pleffer=N. unifasciata junior. 
Natica elongata Troschel= Polinices cora Orbigny. 
Natica excavata Carpenter= WN. elenx Recluz. 
Natica galapagana Recluz= Polinices otis Broderip. 
Natica haneti Recluz=N. elene Recluz. 
Natica iostoma Menke=WN. broderipiana Recluz. 
Natica patula Sowerby = Polinices glaucus Humboldt. 
Natica perspicua Recluz= Polinices otis Broderip. 
Natica prichardi Forbes=N. wnifasciata junior. 
Natica rapulum Reeve= Polinices dubius Recluz. 
Natica salangoénsis Recluz= Polinices otis Broderip. 
Natica taslei Recluz=N. broderipiana Recluz. 
Nerita bernhardi Recluz, cf. N. fulgurans Gmelin. 
Nerita deshayesii Recluz=N. scabricosta Lamarck. 
Nerita fuscata Menke=N. scabricosta Lamarck. 
Nerita multyugis Menke=N. scabricosta Lamarck. 
Nerita ornata Sowerby, 1823=N, seabricosta Lamarck. 
Nerita peruviana Philippi=WN. yoldit Recluz. China. 
Neritina fontaineana Orbigny =N. owenti Mawe. 
Neritina globosa Broderip=N. owenii Mawe. 
Neritina guayaquilensis Sowerby, cf. N. owenii Mawe. 
Neritina intermedia Sowerby =N. owenii Mawe. 
Neritina latissima Broderip=N. owenii Mawe. 
Neritina zebra Sowerby, not Lamarck= WN. sobrina Recluz. 
Netiastoma see Pholadidea. 
Nettastomella see Pholadidea. 
Nitidella cribraria Lamarck=N. ocellata Gmelin. 
Nucula cuneata Sowerby = Leda acuta Conrad. 
Nucula lyrata Hinds= Leda eburnea Sowerby. 
Nucula obliqua Gtay, Sowerby, not of Lamarck=N. grayi. 
Nucula semiornata Orbigny=N. pisum Sowerby. 
Ocinebra (Leach) Gray, 1847= Tritonalia Fleming, 1828. 
Oliva hiatula Gmelin, 8. Africa, ef. O. testacea Lamarck. 
Oliva razamola Duclos, 1835= Olivella volutella Lamarck. 
Orbicula lamellata Troschel= Discinisca lamellosa Broderip. 
Orbicula strigata Broderip= Discinisca cumingi Broderip. 
Orbicula tenuis Sowerby, ef. Discinisca levis Sowerby. 
Ostrea chiloénsis Sowerby =O. chilensis Philippi. 
Ostrea cibialis Hupé=O. chilensis Philippi. 
Ovula Bruguiére, cf. Simnia Risso. 
Patella atramentosa Reeve=P. magellanica Gmelin. 
Patella chiloénsis Reeve=P. magellanica Gmelin. 
Patella concepcionis Lesson=Scurria zebrina Orbigny. 
Patella diaphana Reeve=Scurria mesoleuca Menke. 
Patella goreénsis Gmelin, cf. Crepidula crepidula Linneeus. 
Patella grammica Philippi=Acmea variabilis Sowerby. 
Patella lepas Gmelin=Concholepas concholepas Bruguiére. 
Patella leucophxa Philippi=Scurria parasitica Orbigny. 
Patella lineata Philippi=Acmza variabilis Sowerby. 
Patella maxima Orbigny =P. mexicana Broderip and Sowerby. 
Patella meridionalis Rochebrune=P. magellanica Gmelin. 
