AMERICAN 
MARINE CONCHOLOGY: 
DESCRIPTIONS OF THE SHELLS 
ATLANTIC COAST OF THE UNITED STATES 
FROM MAINE TO FLORIDA. 
BY 
GEORGE W. TRYON, Jr., 
MEMBER OF THE A CADEMY OF NATURAL SCIENCES OF PHILADELPHI A. 
*” PHILADELPHIA: 
PUBLISHED BY THE AUTHOR 
No. 19 Nortu SrxtH STREET. 
