853 



Keoep. 



'iT. ^^^^Tirwnrr'' 



Receptaculites neptuni. (DeFrance, Diction, des Sci- 



Nat. Vol. 45, 



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1827.) Emmons, 



Amer. Geol.I,ii, 

 1855, p. 230, 

 plate 14, fig. 1 ; 

 described b y 



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