6C 
rotundus. 
Wagn., 
Brazil, 
rubiginosus. 
Lea, 
548 
Ohio Riyer, 
rubra. 
Raf., 
Ohio Riyer, 
rudis. 
Conrad, 
North Carolina, 
rugosa. 
Poir., 
France, 
rugosus. 
Barnes, 
Ohio, 
rugosus. 
Wagn., 
Brazil, 
Sageri, 
Conrad, 
Detroit Riyer, 
1865 
Sayi, 
W ard. 
Kentucky, 
1866 
“ yar.. 
Ohio, 
1867 
(( {( 
Alabama, 
scalenia. 
Raf., 
Ohio Riyer, 
Schoolcraftensis,Lea, 
Fox Riyer, 
securis. 
Lea, 
Ohio, 
semigranosus. 
Busch, 
Tampico, 
semfrugata. 
Lam., 
539 
Tennessee, 
1868 
sericatus. 
Parr., 
Croatia, 
1869 
Shepardianus, 
Lea, 
Hopeton, Ga., 
1870 
“ yar. 
9 
Altamaha Riyer, 
siliquoideus. 
Barnes, 
544 
Ohio Riyer, 
1871 
simus. 
Lea, 
Tennessee, 
1872 
Sloatianus, 
Lea, 
Chattahoochie R., 
1873 
“ yar.. 
Soleniformis, 
Lea, 
Ohio, 
Solenoides, 
Raf., 
Ohio, 
1874 
solidus. 
Lea, 
Mahoning Riyer, 
Solisiana, 
D’Orb, 
Rio de la Plata, 
1875 
Sowerbianus, 
Lea, 
Tennessee, 
1876 
“ yar. 
9 
Cumberland Riyer, 
1877 
Spinellii, 
Villa, 
Sicily, 
1878 
spinosus. 
Lea, 
Altamaha Riyer, 
1879 
“ yar.. 
Hopeton, Ga., 
1880 
t( (( 
Darien, Ga., 
1881 
splendidus. 
Lea, 
Altamaha Riyer, 
spuria. 
Lam., 
545 
East Indies, 
1882 
stapes. 
Lea, 
Alabama Riyer, 
1883 
stegarius. 
Raf., 
547 
Sci Ota Riyer, 
1884 
“ yar.. 
Ohio Riyer, 
subglobosus. 
Lea, 
538 
Bayou Teche, 
1885 
subinflatus. 
Conrad, 
Sayannah Riyer, 
suborbiculata. 
Lam., 
546 
Louisiana, 
suboyatus. 
Desh., 
538 
Ohio Riyer, 
suboyatus. 
Lea, 
Ohio Riyer, 
1886 
subplanus. 
Conrad, 
Virginia, 
1887 
subrostratus. 
Say, 
New York, 
1888 
“ yar.. 
Alabama, 
Spix. Test. B., pi. 26, f. 3, 4. is Unio variabilis, Lea. 
Ts. Am. P. S., V. 3, pi. 8, f. 10. is Unio fiavus, Raf. 
Ann. G. des S. P., 5, pi. 82, f. 8 . is Unio coccineus, Hild., Loa. 
Com*. Mon., p. 76, pi. 43, f. 1. is Unio Ravenelianus, Lea. 
Rossm., pi. 13, f. 195. is Unio crassissimus, Fer. 
Sillim. Join*., 6, p. 126, pi. 8, f. 9. is Unio quadrulns, Raf. 
Spix. Test. B., pi. 27, f. 1, 2. is Hyria cormgata, Lam. 
Conr. Mon., p. 53, pi. 29, f. 1. is Unio rectus, Lam. 
Sillim. Jour., v. 35, pi. 3, f. 1. 
Conr. Mon., p. 45, pi. 23, f. 1. Unio dedivis, Conr. 
Com*. Mon., p. 102, pi, 56, f. 2. 
Ann. G. S. P., 5, pi. 81, 1. 24, 25. is Unio olavus, Lam. 
Ts. Am. P. S., V. 5, p. 37, pi. 3, f.9. is Unio bullatus, Raf. 
Ts. Am. P. S., V. 3, pi. 11, f. 17. is Unio lineolatus, Raf 
Phil. Icon., p, 19, pi. 1, f. 1—3. is Unio carbonarius. Lea. 
Delessert, pi. 12, f. 6. is Unio littoralis, Lam. 
Rossm., f. 748, 749. Unio Sandrii, var., 
Ts. Am. P. S., V. 5, pi. 13, f. 38. 
Conr. Mon., p. 70, pi. 39. 
Sillim. J our., V. 6, p. 269. is Unio luteolus, Lam. 
Ts. Am. P. S., V. 6, pi. 8, f. 20. 
Ts. Am. P. S., y. 8, pi. 16, f. 33. 
Chenu C. 111., pi. 32, f. 7. 
Ts. Am. P. S., V. 4, pi. 10, f. 17. is Unio monodontua, Say. 
Ann. Gen. Sci. P., V. 5, p. 32. is Unio cylindricus. Say. 
Ts. Am. Ph. S., V. 6, pi. 5, f. 13. 
Voy. Am. Merid., pi. 69, f. 1-3. is Unio Paranensis, Lea. 
Ts. Am. P. S., V. 5, pi. 10, f. 28. 
Conr. Mon., p. 66, pi. 37, f. 1. 
Ts. Am. P. S., V. 6, pi. 16, f. 50. 
Jay’s Cat., 1839, pi. 5, f. 1. ' 
Chenu C. III., 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. 
Com*. 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 nebulosus, Conr. 
