University of the State of New York 



BULLETIN 



OF THE 



New York State Museum 



Frederick J. H. Merrill Director 



No. 40 Vol. 8 



October 1901 



ANATOMY AND PHYSIOLOGY 



OF 



POLYGYRA ALBOLABRIS AND LIMAX MAXIMUS 



AND 



EMBRYOLOGY OF LIMAX MAXIMUS 



BY 



GEORGE B. SIMPSON 

 Division of paleontology 



ALBANY 



university of the state of new YORK 



1901 



