SECOND SERIES: PULMONATA. 



MANUAL 



OF 



OGY; 



STRUCTURAL AND SYSTEMATIC. 



WITH ILLUSTRATIONS OF THE SPECIES. 



GEORGE W, TRYON, JR. 



CONTINUATION BY 



HENRY A. PILSBRY, 



CONSERVATOR OF THE CONXHOLOGICAL SECTION OF THE ACADEMY 6" 

 NATURAL SCIENCES OF PHILADELPHIA. 



X. 



AMERICAN BULIMI AND BULIMULI. 

 STROPHOCHEILUS, PLEKOCHEILUS, AURIS, BULIMULUS. 



PHILADELPHIA: 

 3Pu.blish.ed by Concliological Section 



ACADEMY OF NATURAL SCIENCES, 

 OF PHILADELPHIA. 

 1895-6. 



