61 



Conr. Mon., p. 54, pi. 29, f. 2. 



A. G. des S. P., 5, pi. 82, 1'. 17, 18. Anodonta lata, Raf. 

 N. Harm. Diss., 2, Oct., 1829. Uiiio dehiscens, Say. 

 Ts. Am. Ph. S., V. 4, pi. 6, f. 5. Unio orieaa, Lea. 

 Conr. Mon., p. 96, pi. 53. Unio interraptus, Lea. 



Ts. Am. Ph. S., 6, pi. 6, f. 15. 



Conr. Mon., p. 33, pi. 15. k Unio rectus, Lam. 



Griff. Cuv., 12, pi. 21, f. 1. 



Ts. Am. Ph. S., 6, pi. 12, f. 35. 

 Ts. Am. Ph. S., 8, pi. 12, f. 18. 

 Ts. Am. Ph. S., 4, pi. 8, f. 10. 

 Poulson's Trans. Raf., p. 21. 

 Sillim. Jour, 6, p. 272, f. 16. 

 N. Harm. Diss., 2, Sept., 1829. 

 Zool. Illust, 1st ser., 3, pi. 160. 

 Conr. Mon, p. 60, pi 34, f. 2. 

 Ts. Am. Ph. S., 3, pi. 9, f. 15. 

 Sillim. Jour, 6, p. 118, pi. 1. 

 J. B. Bouill. Cat, p. 81. 

 Rossm. Icon, pi. 13, f. 199. 



Amer. Conch, pi. 68. 



Ts. Am. Ph. S, 3, pi. 11, f. 17. 



Enc. Meth, pi. 248, f. 2. 

 Schroet. Fluss, pi. 2, f. 3. 

 Pfeiff. Syst. An, pi. 5, f. 12. 

 Delessert, pi. 12, f. 6. 

 Drap. Moll, p. 133, pi. 10, f. 20. 

 Mich. Comp, pi. 16, f. 23. 

 Ts. Am. Ph. S, 4, pi. 13, f. 27. 

 Brard. Hist, des C, pi. 8, f. 6. 

 Schum. Vers. T, pi. 11, f. 1. 

 Turt. B. Biv, p. 246. 

 Don. B. Shells, v. 3, pi. 101. 

 Rossm. Icon, pi. 14, f. 200. 

 Amer. Conch, pi. 43. 

 Conr. Mon, p. 40, pi. 19. 

 Conr. Mon, p. 22, pi. 10, f. 1. 

 Sillim. Jour, 6, p. 269. 

 Sillim. Jour, 6, p. 266. 

 Pfeiff. Syst. An, pi. 8, f. 5, 6. 

 Drap. Moll, pi. 10, f. 17-19. 

 Enc. Meth, pi. 247, f. 1. 

 Ts. Am. Ph. S, 6, pi. 12, f. 34. 



is Unio subrotundus, Raf. 

 Unio tenuissimus, Lea. 

 Unio planus, Barnes. 

 Unio velum, Say. 

 Anodonta purpurascens, Swain. 



is Unio fasciolus, Raf. 

 is Unio crassus, Say. 

 is Unio ovalis, Flem. 

 is Unio pietorum, Lam. 

 is Unio pietorum, Lam. 

 Unio securis, Lea. 

 Unio depressus, Raf. 



Unio crassus, Sehr. 

 Unio rhomboides, Schr. 

 Unio brevialis, Lam. 

 Unio semirugata, Lam. 

 Unio nana, Lam. 

 Unio subtetragona, Mich. 

 Unio incurvus, Lea. 

 Unio Pianensis, Farin. 

 Unio granosus, Schum. 

 Mysca ovata, Turton. 

 Mya depressa, Don. 

 is Unio pietorum, Lam. 

 is Unio purpuratus, Lam. 

 is Unio cariosus, Say. 



Unio siliquoideus, Barnes. 

 Unio inflatus, Barnes, 

 is Unio pietorum , Lam. 

 is Unio crassissimus, Fer. 



is Unio purpuratus, Say. 



