AMERICAN JOURNAL OF CONCHOLOGY. 



Plate 7. 



FHg. 1. Vivipara inornata, Binney. 



" 3. Melantho decampi, Currier. 



" 3. Ibid, Young. 



" 4, 5. Cylindrella Coahvilensis, Binney. 



" 6. Carinifex Newberryi, Lea. 



*' 7. " " variety. 



*' 8. Bulinus berlandierianus, Binney. 



•* 9. ** hypnorum.. Linn. 



