SECOND SERIES: PULMONATA 



MANUAL 



OF 



CONCHOLOGY 



VOL. XXIII 



APPENDIX TO 

 AMASTRIDvE. TORNATELLINID^ 



INDEX, VOLS. XXI-XXIII 



BY 



HENRY A. PILSBRY, Sc.D. 



AND 



C. MONTAGUE COOKE, Ph.D. 



PHILADELPHIA: 

 PUBLISHED BY THE CONCHOLOGICAL DEPARTMENT 



ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA 



