MELANIAD.E. 



PLATE I. 



1. Melania Matoni of Gray (Zool. Misc.) : fusca of Philippi. 



2. Melania olivula of Conrad (Silliman's Amer. Journ. of Science xxv.). 



3. Melania Hydei of Conrad (New Freshwater Shells). 



4. Melania nobilis of Lea (Trans. Amer. Phil, x.) : excurata ? of Conrad (New Freshw. 



Shells). 



5. Melania brevior of Troschel (in Philip. Abbild. Conch.). 



6. Melania Haysiana of Lea (Trans. Amer. Phil, ix.) teste Phillips and Eedfield : the harpa 



of Lea (Tr. Am. Ph. x.) scarcely differs. 



7. Melania spinosa of Benson. 



8. Melania acanthica of Lea (Proc. Zool. Soc. 1850), from type. 



9. Melania quadriseriata of Gray (Zool. Mis.) : mutans of Gould (Proc. Bost.) apparently. 

 10. Melania undulata of Say (Ter. and Fluv. Shells). 



PLATE II. 



11. Melania cancellata of Benson (Ann. Nat. H. 1842). 



12. Melania semigranosa of Von dem Busch (Philip. Abbild. Conch.). 



13. Melania granifera of Lamarck (Anim. s. Vert.). 



14. Melania Byronensis of Gray (Ind. Test. Suppl.): Owensiana, Gray (Zool. Misc.). 



15. Melania coarctata of Philippi (Abbild. Conch, ii. as of Lamarck with doubt), not of 



Lamarck. 



16. Melania corvina of Morelet (Test. Novis.), from type. 



17. Melania glaphyra of Morelet (Test. Novis.), from type. 



18. Melania zonata of Von dem Busch (Philip. Abbild. Conch.). 



19. Melania "Winteri, var. of Von dem Busch (do.). 



20. Melania spinulosa of Lamarck (as in Deles. Rec. Coq. Lam.). 



PLATE III. 



21. Melania hastula of Lea (Zool. Proc. 1850), from type. 



22. Melania Frethii of Gray (Cuvier, ed. Griffith) ; from Fernando Po. 



23. Melania lsevissima of Sowerby (Zool. Journ.). 



24. Melania Indiorum of Morelet (Test. Novis.), from type. 



25. Melania corvina, var. of Morelet (Test. Novis.) from description ; Honduras. 



26. Melania lacustris of Morelet (Test. Novis.), from type. 



27. Melania episcopalis of Lea (Proc. Zool. Soc. 1850), from type. 



