40 



BIBLIOGRAPHY OE 



Page. 

 20 



20 

 20 



20 

 20 

 20 



20 

 20 



20 

 20 

 20 

 20 

 20 

 20 

 20 

 20 

 20 

 20 



20 



Kame. >. 



Corbula ferruginosa. 



Mya ferruginosa Wood. 

 Pandora trilineata Say. 

 Petricola pholadiformis Lavi. 



P. fornicata Say. 

 Sanguinolaria fusca Conrad. 

 Tellina polita Say. 

 Lucina divaricata. 



Astarte castanea Saj. 



Locality. 



Found in Nantucket harbor. 

 Very common. 



At Nantucket. 



Found at New Bedford. 



A single valve found at Chatham. 



Ocean shore at Nantucket. 



Astarte. A distinct species, with margins entire. 



Common in Essex County. 



C3'-prina Islandica. 



Venus Islandica L. 

 Venus mercenaria. 



praeparca Say. 



notata Say. 

 Cardium Mortoni Conrad. 



pinnulatum Conrad. 

 Cardita. This species appears to be undescribed 



Very common at New Bedford. 



Area ponderosa Say. 



pexata Say. 



transversa Say. 

 Nucula margaritacea. 



N. proxima Say. 



Area nucleus L. 



rostrata Montague. 



N. limatula Say. 



Found at Smith's point, on the 



ocean shore of Nantucket. 

 Not uncommon in Buzzard's Bay. 



Order II. Unimusculosa* 



20 Modiola papuana. 



Mytilus modiolus L. 



20 Mytilus edulis. 



20 ungulatus. 



20 pellucidus. 



20 incurvatus. 



20 demissus. 



21 Pecten Magellanicus. 

 21 Islandicus (rare). 



P. Pealeii Conrad. 



21 • concentricus Say. 



21 Ostrea Virginica. 



21 Anomia ephippium. 

 21 



Very abundant at New Bedford. 

 Rare in Mass., common at Eastport, Me. 



Abundant in New Bedford. 



undulata. Is it a distinct species from the preceding ? 



