Spix. Test. B., pi. 26, f. 3, 4. 

 Ts. Am. P. S., v. 3, pi. 8, f. 10. 

 Ann. G. des S. P., 5, pi. 82, f. 8. 

 Conr. Mon., p. 76, pi. 43, f. 1. 

 Rossm., pi. 13, f. 195. 

 Sillim. Jour., 6, p. 126, pi. 8, f. 9. 

 Spix. Test. B., pi. 27, f. 1, 2. 

 Conr. Mon., p. 53, pi. 29, f. 1. 

 Sillim. Jour., v. 35, pi. 3, f. 1. 

 Conr. Mon., p. 45, pi. 23, f. 1. 

 Conr. Mon., p. 102, pi. 56, f. 2. 

 Ann. G. S. P., 5, pi. 81, f. 24, 25. 

 Ts.Am.P.S.,v.5,p.37,pl.3,f.9. 

 Ts. Am. P. S., v. 3, pi. ll,f. 17. 

 Phil. Icon., p. 19, pi. 1, f. 1-3. 

 Delessert, pi. 12, f. 6. 

 Rossm., f. 748, 749. 

 Ts.Am.P. S.,v. 5, pi. 13, f. 38. 

 Conr. Mon., p. 70, pi. 39. 

 Sillim. Jour., v. 6, p. 269. 

 Ts. Am. P. S., v. 6, pi. 8, f. 20. 

 Ts. Am. P. S.,v.8,pl. 16, f. 33. 

 Chenu C. 111., pi. 32, f. 7. 

 Ts. Am. P. S., v. 4, pi. 10, f. 17. 

 Ann. Gen. Sci. P., v. 5, p. 32. 

 Ts. Am. Ph. S.,v.6,pl. 5,f. 13. 

 Voy. Am. Merid., pi. 69, f. 1-3. 

 Ts. Am. P. S., v. 5, pi. 10, f. 28. 

 Conr. Mon., p. 66, pi. 37, f. 1. 



is Unio variabilis, Lea. 

 is Unio fiavus, Raf. 

 is Unio coccineus, Hild., Lea. 

 is Unio Ravenelianus, Lea. 

 is Unio crassissimus, Fer. 

 is Unio quadrulus, Raf. 

 is Hyria corrugata, Lam. 

 is Unio rectus, Lam. 



Unio declivis, Conr. 



is Unio clavus, Lam. 

 is Unio bullatus, Raf. 

 is Unio lineolatus, Raf. 

 is Unio carbonarius, Lea. 

 is Unio littoralis, Lam. 

 Unio Sandrii, var., 



is Unio luteolus, Lam. 



is Unio monodontus, Say. 

 is Unio cylindricus, Say. 



is Unio Paranensis, Lea. 



Ts. Am. P. S., v. 6, pi. 16, f. 50. 



Jay's Cat., 1839, pi. 5, f. 1. 



Chenu C. 111., pi. 22, f. 6. 



Ts. Am. P. S, v. 6, pi. 19, f. 61. 



Schr. Einl., 2, p. 617, pi. 7, f. 5. is Unio corrugatus, Lam. 



Ts. Am. Ph. S., v. 4, pi. 7, f. 8. 



Conr. Mon., p. 83, pi. 46, f. 1. Unio irroratus, Lea. 



Ann. Gen. Sci., v. 5, pi. 82, f. 4,5. 



Ts. Am. Ph. S., V. 5, pi. 2, f. 3. is Unio rotundatus, Lam. 



Conr. Mon., p. 97, pi. 54, f. 1. 



Amer. Conch., pi. 34. is Unio rotundatus, Lam. 



Sillim. Jour., V. 6, p. 270. is Unio ovatus, Say. 



Ts. Am. P. S., V. 4, pi. 18, f. 46. is Unio cardium, Raf. 



Conr. Mon., p. 73, pi. 41, f. 1. 



Desc. of New Shells, p. 7. Unio iris, Lea. 



N. F W. Shells, p. 28, pi. 3, f. 7. Unio nobulosus, Conr. 



