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67 
subrotundus. 
Lea, 
Ohio River, 
subrotundus. 
Raf, 
Ohio River, 
“ var.. 
(i « 
Tennessee, 
subtentus. 
Say, 
555 
Tennessee, 
“ var.. 
Alabama, 
subtetragona. 
Mich., 
France, 
sulcatus. 
Lea, 
548 
Ohio, 
sulcidens. 
Lam., 
Connecticut River. 
superbus. 
Lea, 
N. Holland, 
syrmatophorus. 
Lea, 
S. America, 
Tampicoensis, 
Lea, 
Tampico River, 
Tappanianus, 
Lea, 
Juniata River, 
Tavoyensis, 
Gould, 
British Burmah, 
tenebrosus. 
Conrad, 
Virginia, 
tenerus. 
Rav., 
S. Carolina, 
tenuissimus. 
Lea, 
Ohio River, 
teres. 
Raf, 
Mississippi River, 
“ var., 
Wabash River, 
tetralasmus. 
Say, 
555 
Bayou St. John, 
torsus. 
Raf, 
534 
Ohio River, 
torulosus. 
Raf, 
Wabash River, 
trabalis. 
Conrad, 
Tennessee, 
trapezoides. 
Lea, 
Lake St. Joseph, 
“ var.. 
Louisiana, 
triangularis^, 
Barnes, 
554 
Ohio River, 
trigonus. 
Lea, 
Ohio River, 
triqueter. 
Raf, 
Falls of Ohio, 
“ var., 
(( tc 
Troostensis, 
Lea, 
Cumberland River, 
truncatus. 
Raf, 
Wabash River, 
“ var.. 
Ohio, 
tuberculatus. 
Raf, 
Harpeth River, 
“ var. 
f 
Ohio River, 
tuberculosa. 
Valenc., 
Wisconsin, 
tunvdus. 
Retz., 
France, 
tumidus. 
Pfeiff, 
France, 
turgidus. 
Lea, 
New Orleans, 
Turtoni, 
Payr., 
552 
Isle of Corsica, 
undatus. 
Barnes, 
534 
Ohio River, 
undulatus, 
Say, 
Wabash River, 
undulatus. 
Desh., 
534 
Fox River, 
undulatus. 
Eesh., 
533 
Ohio River, 
undulatus, 
Barnes, 
Tennessee, 
Vanuxemensis, 
Lea, 
Cumberland River, 
Trs. Am. P. S., V. 4, pi. 18, f. 45. is Unio politus. Say. 
Pouls. Transl. Raf., p. 44. Unio chculus. Lea. 
Trs. Am. P. S., v. 3, pi. 9, f. 14. ' 
Trs. Am. P. S., V. 4, pi. 8, f. 10. Unio lens. Lea. 
Amer. Conch., pi. 15. 
Conr. Mon., p. 85, pi. 47, f. 1. 
Mich. Supp., pi. 16, f. 23. Unio littoralis ? Lam. 
Trs. Am. P. S., V. 3, pi. 8, f. 12. is Unio obliquatus, Raf. 
Delessert, pi. 12, f. 3. is Unio complanatus, Soland. 
Trs. Am. P. S., v. 9, pi. 42, f. 11. 
Sowerb. Gen. of Shells, f. 1. is Hyna avicularis, Lam. 
Trs. Am. P. S., v. 6, pi. 7, f. 18. 
Trs. Am. P. S., V. 6, pi. 17, f. 55. Unio viridis, Conrad. 
Proc.Bost.S. N. H.,v. l,p. 140. 
N. F. W. Shells, p. 42, pi. 7, f. 1. Unio tonerus, Rav. 
Chenu C. 111., pi. 31, f. 1. is Unio tenebrosus. Conr. 
Trs. Am. P. S., V. 3, pi. 1 1, f. 21. is Unio leptodon, Raf 
Conr. Mon., p. 52, pi. 28. Unio anodontoides. Lea. 
Pouls. Trans. Raf., p. 68, sp. 66. 
Amer. Conch., pi. 23. 
Cuv. R. An. par Desh.,pl. 92,f.l.is Unio retusus, Lam. 
Conr. Mon., p. 50, pi. 27, f. 1. is Unio gibbosus, Raf 
Conr. Mon., p. 110, pi. 60, f. 2. is Unio Troostensis, Lea. 
Trs. Am. P. S., v. 4, pi. 3, f. 1. 
Amer. Conch., pi. 33. Unio interruptus. Say. 
Reeve Syst. C., pi. 89, f. 9. is Unio triqneter, Raf. 
Trans. A. P. S., V. 4, p. 110. is Unio oordatus, Raf 
Pouls. Transl. Raf., p. 31. Unio triangularis, Games. 
Sillim. Jour., V. 6, p. 272. Unio ouneatus, Swains. 
Trs. Am. P. S., V. 4, pi. 16, f 41. Unio formosus. Lea. 
Trs. Am. P. S., V. 5, pi. 10, f 30. Unio trabalis, Conr. 
Amer. Conch., pi. 67. Unio elegans. Lea. 
Pouls. Transl. Raf, p. 31. 
Conr. Mon., p. 43, pi. 22. Unio verrucosus, Barnes. 
Ann. Gen. cles S. P., V. 5, p. 42. Unio tuberculosa, Val. 
Sillim. Jour., V. 6, p. 123. is Unio tuberculatus, Raf 
Enc. Meth., pi. 248, f. 9. is Unio ovalis, Flem. 
Rossm., p. 117, pi. 7, f 70. is Unio ovalis, Flem. 
Trs. Am. P. S., V. 6, pi. 5, f. 1 1 . Unio Mortoni, Conr. 
Cat. de Corse, p. 65, pi. 2, f. 2, 3. is Unio pictorum, Lam. 
Conr. Mon., p. 77, pi. 43, f. 2. is Unio oordatus, Raf 
Conr. Mon., p. 107, pi. 59. is Unio boros. Say. 
Sillim. Jour., V. 6, pi. 4, f 4. is Unio oordatus, Raf 
Amer. Conch., pi. 16. is Unio plicatus. Say. 
Sillim. Jour., V. 6, pi. 2, f 2. is Unio costatus, Raf 
Trs. Am.P.S.,v. 6, pi. ll,f 31. 
