68 
1915 
variabilis. 
Maton, 
Brazil, 
1916 
“ var.. 
varicosus. 
Lea, 
Ohio River, 
velum. 
Say, 
Ohio River, 
1917 
ventricosa. 
Bouill., 
Auvergne, 
ventricosus. 
Soland., 
Mississippi, 
ventricosus. 
Desh., 538 
Ohio River, 
ventricosus. 
Say, 538 
Wabash River, 
ventricosus. 
Barnes, 
Wisconsin, 
1918 
venustus. 
Lea, 
Potosi, Missouri, 
verrucosus. 
Barnes, 
Lake Erie, 
1919 
verrucosus. 
Raf., 
Ohio River, 
1920 
“ var.. 
1921 
U (( 
violaceus. 
Speng., 
New Jersey, 
Virginianus, 
Lam., 544 
Virginia, 
viridis. 
Conrad, 
Juniata River, 
1922 
Watereensis, 
Lea, 
Wateree Canal, 
1923 
Zieglerianus, 
Lea, 
Cumberland River, 
zigzag. 
Lea, 551 
Ohio River, 
G E 
N tr s 
MARGARITANA 
1924 
arcula. Lea, 
Altamaha River, 
1925 
“ var.. 
1926 
Bonellii, Fer., 
France, 
1927 
“ var.. 
Turin, 
1928 
(( <( 
1929 
t( <e 
1930 
calceola. Lea, 
546 
Ohio, 
1931 
complanata, Barnes, 
559 
Ohio River, 
1932 
“ var.. 
Tennessee, 
1933 
confragosa. Say, 
553 
Illinois, 
1934 
“ var.. 
1935 
Corrientesensis, D’Orb., 
Argentine Republic^ 
1936 
costata, Raf., 
Ohio, 
1937 
“ var.. 
Wabash River, 
1938 
Curreyana, Lea, 
Stone’s River, 
1939 
deltoidea. Lea, 
Sciota River, 
1940 
margaritifera, Linn., 
531 
Europe, 
1941 
“ var.. 
1942 
(( <( 
531 
1943 
ft ft 
1944 
tt it 
557 
Spix. Test. B., pi. 26, f. 3, 4. Unio rotundus, Wagn. 
Trs. L. S., V. 10, pi. 24, f. 4—7. Mya variabilis, Maton. 
Trs.Am. P. S., v. 4, pi. 11, f. 20 . is Unio oicatricosus. Say. 
Trs. Am. P. S., V. 3, pi. Il,f.21.i3 Unio leptodon, Raf. 
Bouillet Cat., p. 149. fossil. 
List. C., pi. 155, f. 10 ? is Unio purpuratus, Lam. 
Conr. Mon., p. 4, pi. 2. is Unio ovatus, Say. 
Amer. Conch., pi. 32. is Unio cardium, Raf. 
Sillim. Jour., v. 6, pi. 13, f. 14. is Unio cardium, Raf. 
Trs. Am. P. S., v. 6, pi. 2, f. 4. 
Sillim. Jour., V. 6, pi. 5, f. 6. is Unio tuberculatus, Raf. 
Sillim. Joui'., V. 6, pi. 7, f. 8. Unio tuberculatus, Barnes. 
Reeve C. Syst., pi. 88, f. 1. 
A.G. des S.P.,v.5, pl.81,f.l0,ll. 
List. C., pi. 150, f. 5. is Unio complanatus, Soland. 
Schroet. Einl., V. 2, p.614,No.l.i3 Unio radiatus, Lam. 
Conr. Mon., p. 35, pi. 17, f. 1. is Unio Tappanianus, Lea. 
N. F. W. Shells, p. 39, pi. 6, f. 4. Unio Raveneli, Conrad. 
Ts. Am. P. S., V. 6, pi. 10, f. 27. 
Ts. Am. P. S., V. 3, pi. 12, f. 19. is Unio nervosa, Raf. 
Schumacher . 
Ts. Am. P. S., V. 6, pi. 22, f. 69. 
Rossm., p. 24, pi. 9, f. 134. Alasmodonta Bonellii, Fer. 
Pfeiff., p. 32, pi. 8, f. 3, 4. Unio depressa, Muhlf. Meg. 
Menke Synop., 1830, p. 106. Unio compressa, Menke. 
Rossm., f. 746. Alasmodonta uniopsis, var. 
Ts. Am. Ph. S., V. 3, pi. 3, f. 1. Unio calceolus. Lea. 
Sillim. Jour., V. 6, p. 278. Symphynota complanata. Lea. 
Alasmodonta complanata. 
Amer. Conch., pi. 21. Alasmodonta conlfagosa. Say. 
Voy. Am. Mer., pi. 68, f. 8—10. MonocondyloeaCorrientesensis. 
Ann. Gen. Sci. Ph., V. 5. p. 49. Alasmodonta rugosa, Barnes. 
Sillim. Jour., V. 6, pi. 13. Alasmodonta abducta. Say. 
Ts. Am. P. S., V. 8, pi. 18, f. 40. 
Ts. Am. P. S., V. 6, pi. 13, f. 38. 
Chemn. 6, pi. 1, f. 5. Mya margaritifera, Linn. 
Schum. Vers. Test., pi. 10, f. 4. Margaritana fluviatilis, Sohu. 
Knorr. Verg., V. 4, pi. 25, f. 2. Unio olongata, Lam., Mich. 
Pfeiff. Syst. An., pi. 7, f. 4, 5. Unio sinuata, Pfeiff. 
Mich. Comp., pi. 16, f. 27, 28. Unio Roissii,Mich. 
