A PRELIMINARY CATALOGUE 



SHELL-BEARING MARINE MOLLDSKS AND BRACHIOPODS 



SOUTHEASTERN COAST OF THE UNITED STATES, 



WITH ILLUSTRATIONS OF MANY OF THE SPECIES. 



WILLIAM HEALEY BALL, A. M., 



Honorary Curator Division of Mollnskx, I'. 8. National Museum. 



To which are added twenty-one plates not in the edition of 1889. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 



1903. 3 



