282 AMERICAN JOURNAL 



Reference to Plate 15, 

 Illustrating Mr. Conrad's Papers. 



Figures 1, 2, 8, Physa pomilia, Conrad. 



" 4. Dosinia Floridana, Conrad. 



« 5. Anculosa pumila, Conrad. 



« 6. Periploma papyracia, Say. 



" 7. Lucina lintea, Conrad. 



« 8. Tellina Tampaensis, Conrad. 



" 9 ; 10, 15. Azara undata, Conrad. 



" 11, 17. Viviparus geniculus, Conrad. 



" 12. Corbula contracta, Say. 



" 13. Unio fontanus, Conrad. 



" 14. Unio prasinatus, Conrad. 



" 16. Unio uber, Conrad. 



