New York State Museum or Narturat History. 
[Extracted from the Thirty-fifth Annual Report. ] 
ANATOMY AND PHYSIOLOGY 
OF 
ANODONTA FLUVIATILIS. 
By GEORGE B. SIMPSON. 
WITH ELEVEN PLATES. 
oe 
‘ Ba PA a vate) 
ae PSION Ox pr ee 
be W Ao sal ee 
; , Y Taser 
Sanh | ish} As } 
ma gree ST UE APTA 
ATIBAN Y> Ne. Yi: 
WEED, PARSONS & COMPANY, PRINTERS. 
1884. 
