iJie Shells of Maine. 343 



years, I have found this shell considerably plentiful in the 

 stomachs of haddock taken in Casco Bay, but during the last 

 two years it has been rarely seen. 



Genus Purpura. Lam. 



P. lapillus, Lin. Littoral. Lihabits the whole coast of 

 Maine, in vast numbers. I have placed in my cabinet, at 

 least eight varieties of this species, all inhabitants of Maine. 

 The only variety that occurs at Eastport, is of a chocolate 

 color, — externally and internally. European specimens are 

 a little more ponderous than our shells, in other respects they 

 are the same. 



Genus Buccinum. Lin. 



B. undatum, Lin. Littoral, — occasionally found, during 

 ordinary tides, considerably above low-w'ater mark, in great 

 numbers. The larsrest and most beautiful I ever saw, I found 

 at Clapboard Island, in Casco Bay. They very soon disap- 

 peared, and have not been noticed since. Our shell differs in 

 no respect from European specimens. A sailor gave me a 

 specimen which he says he picked up on the coast of Chili ; 

 it accords perfectly with ours. 



B, trii'ittatum, Say. Found in considerable numbers in 

 fishes' stomachs, and by dredging in Portland harbor. I once 

 found it alive, in the mud, during a spring tide, at low-water 

 mark, at Clapboard Island. 



B. ohsohtam, Say. Littoral. Abundant on muddy flats in 

 all our quiet bays, especially near the mouths of rivers. 



B. rosacewn, Gould. Pelagic. Found sparingly, in had- 

 docks' stomachs in Casco Bay. 



B. ciliatuni, Oth. Fab. Pelagic. Hab. Gulf of St. Law- 

 rence and Grand Banks. Very rare. 



B, donovani, Gray. Pelagic. Obtained from fishes' stom- 

 achs, accompanying the preceding. Also rare. 



B. pUcosum, Menke. A few specimens of this species have 

 been found in Back Cove, near this city ; they accord per- 

 fectly with Massachusetts specimens. 



