/ 



AMERICAN 



MARINE CONCHOLOGY: 



OR, 



DESCRIPTIONS OF THE SHELLS 



ATLANTIC COAST OF THE UNITED STATES, 



FROM MAINE TO FLORIDA. 



BY 



GEORGE W. TRYOIS", Jr., 



.MKMBER OF THE ACAUEMY OF NATUUAL SUIF-NOES OF PHILADK LPHI A. 



/ 



PHILADELPHIA: 



PUBLISHED BY THE AUTHOR, 



No. 19 NoKTH Sixth Street. 



