Division oi .wojiugfeg 

 MANUAL Sectioned library 



OF THE 



LAND AND FRESH-WATER 

 SHELLS 



OF 



€f)t 2r<tfeft Isfante, 



WITH 



FIGURES OF EACH OF THE KINDS. 



BY 



WILLIAM TURTON, M.D. 



ltp etrttfmt, , i 



n 



THOROUGHLY REVISED AND MUCH ENXAKGED 



JOHN EDWAR^ GRAY, F.R.S., 



&c. 



LONDON: 



PRINTED FOR 



LONGMAN, ORME, BROWN, GREEN, AND LONGMANS, 



PATERNOSTER-ROW. 



1840. 



