AMERICAN 



MARINE CONCHOLOGY: 



DESCRIPTIONS OF THE SHELLS 



OK THIS 



ATLANTIC COAST OF THE UNITED STATES, 



FROM MAINE TO FLORIDA. 

 BY 



GEORGE W. TRYOl!^, Jk., 



MKMBKR OF THK ACAUE.UY OV NATURAL SCIENCES OP PHILADELPHIA. 



Jl 



PHILADELPHIA: 



PUBLISHED BY THE AUTHOR, 



No. 19 North Sixth Street. 



