Shells found in Essex County. 



land seem to have been under revision by Agassiz : See 

 Stimpsorfs Shells of N. E., at pp. 13. 15. 

 Ariomia ephippium. L. About Orne's Point, W. 



Variety aculeata. Lynn. P. -Tr. 



Variety squamula. Lynn Tr. 



Astarte castanea. G. Orne's Point, W. 

 Astarte quadrans. G. Lynn, P. Salem Harbor, W. 

 Astarte sulcata. G. Orne's Point, W. Marblehead Har- 

 bor at low water. St. Sh. IS. Lynn, Tr. 



Buccinum plicosum, G. Common in the tide-mill ponds, 



Salem, Tr. 

 Buccinum undatum, L. Salem harbor. T. St. Sh. 46. 



Bulimus lubricus, G. Salem, Tr. 



Bulk punctostriata, St. Bost. Proc. iv. 17. Off Cape Ann. 

 Bulla triticea, G. Off Kahant. T. & H. St. Sh. 50. Sa- 

 lem, Tr. 



Cemoria Noachina, G. Stomachs of fishes. Salem har- 

 bor, W. Lynn beaches, Tr. 



Chiton albus, G. Stomachs of fishes. Also cast ashore 

 upon the Lynn beaches, Tr. 



Chiton marginatns, G. "Found living, a few years since, 

 by DR. CHARLES PICKERING, at Phillips beach," Gould : 

 and " no other specimen has been found on our coasts." 

 St. Sh. 28. 



Chiton ruber, G. Stomachs of fishes, W. Mr. True finds 

 this species to be the most abundant of any of the Chi- 

 tons on our beaches. 



Cingula minuta, G. Lynn beaches, Tr. 



Cochlodesma Leana, Couth. Anatina Leana, Conrad. G. 

 In a living condition at Point beach, Lynn, Tr. 



Columbella Gouldiana ? "Ag. Ms." St. Sh. 48. Lynn 

 beaches, among the roots of kelp. (Laminaria Sp.) Tr. 



