'!! 1 AMERICAN 



*' "JOURNAL OF C0NCH0L0GY. f 



VOLUME IV. 



PUBLISHED BY THE 



Conchological Section of the Academy of Natural Sciences. 



PUBLICATION COMMITTEE: 



GEO. W. TRYON, Jr., Editor, 

 ISAAC LEA, LL. D. 

 EDW. J. NOLAN, M.D. 



/ZtyZ 3 3 



PHILADELPHIA: 



Conchological Section of the Academy of Natural Sciences. 

 NEW YORK: BOSTON: 



Bailliere Brothers, No. 520 Broadway. Little, Brown & Co. 



LONDON: 



Trubner & Co., No. 60 Paternoster Row. 



PARIS : MADRID : 



J. B. Bailliere et Fils, Rue Hautefeuille. C. Bailly-Bailliere, Calle del Principe. 



BERLIN: 

 Asher & Co., No. 20 Unter d. Linden. 



1868. 



