it 
Or 
1496 apiculatus, var., Alabama River, Con. Mon., p. 78, pl. 44, f. 1. Unio asper, Lea. 
Arceformis, Lea, Tennessee River, T's. Am. P.S., v. 4, pl. 17, f. 44. is Unio nexus, Say. 
1497 _arctior, Lea, Ohio River, Ts. Am. P. S., v. 6, pl. 4, f. 10. Unio dilatatus? Raf. 
asper, Lea, Alabama River, Ts. Am. P.S., v. 4, pl. 9, f. 15. is Unio apiculatus, Say. 
asperrimus, Lea, Ohio River, Ts. Am. P.S., v. 4, pl. 5, f. 3. is Unio quadralus, Raf. 
ater, Lea, 533 Mississippi River, Ts. Am. P.S., v.38, p. 426, pl. 7. is Unio purpuratus, Lam. 
ater, Nils., Europe, Rossm., pl. 9, f. 133. is Unio batavus, Lam. 
1498 atratus, Swains., N. America, Swains. Z. Ill., 1st ser., pl. 171. Niaa fragilis, Swains. 
1499 —_atrocostatus, Lea, Alabama, Ms eA EA Save LOn plats o: 
1500 atrovirens, Schmidt, Styria, Rossm., Icon., pl. 15, f.206, 207. 
1501 = auratus, Swains., N. Holland, Pinlt Teon.iv: Siypli 4, £1 Niaa aurata, Swains. 
1502 eS Vale: Isle of Chiloe, Voy. Coquille, pl. 15, f. 5. Unio depressus, Less. 
15038 & us Chenu C. Ill, pl. 11, fi 4. Unio obtusus, Fer. 
auricularis, Spengl., 530 Rhine, Drap. Moll., pl. 10, f. 17-19. is Unio erassissimus, Fer. 
1504 —Badius, Kokiel, Rhone, Mich. Supp., pl. 16, f. 25. 
1505 batavus, Lam., 542 Europe, Pfeiff. Syst. An. pl. 5, f. 14. Unio ater, Nils. 
1506 CG var., England, Wood’s Gen. C., pl. 19, f. 1, 2. Mysca batava, Turt. 
1507 ce a Don. B. Shells, v. 5, pl. 174. — Mya ovalis, Soland. 
1508 cc és Germany, Rossm. Icon., pl. 15, f. 20. Unio gibba, Mublf. 
1509 a Ke France, Rossm., pl. 8, f. 128. Unio Labacensis, Mihlt. 
1510 os: ee Rossm., pl. 15, f. 208. Unio consentaneus, Ziegl. 
1511 ~Bengalensis, Lea, Bengal, AsvAmawEIS., V6, pl: 2, f.'3. 
1512 biangulatus, Lea, Tennessee, sAms PS. .v8) pl. Ors. 
1513 & var., Chenu C. Ill., pl. 30, f. 7. 
1514 Blandingianus, Lea, Florida, Ts. Amey PAS:; v.95; ply 15h, 44. 
1515  Boydianus, Lea, New York, Ts PAnay Pas? 18spl. 16; £32: 
brevialis, Sowb., Ohio, Sowb. Gen., f. 4. is Unio olivarius, Raf. 
brevialis, Lam., «536. France, Enc. Meth., pl. 248, f. 2. is Unio littoralis, Lam. 
brevialis, Crouch., Ohio, Crouch. Intr. C., pl. 9, f. 3. is Unio politus, Say. 
brevidens, Lea, Tennessee, Ts. Am. P.S., v. 4, pl. 6, £6. is Unio interruptus, Raf. 
1516  bullatus, Raf., Ohio, Conr. Mon., p. 82, pl. 45, f.2. Unio pustulosus, Lea. 
1517 ss var., Ts. Am. P.S., v. 6, pl. 17, f. 54, Unio Dorfeuillanus, Lea. 
1518 os sf Ts. Am. P.S., v. 5, pl. 3, £9. Unio Schooleraftensis, Lea. 
1519 # Conr. Mon., p. 79, pl. 44, f. 2. Unio prasinus, Conrad. 
1520 me 
1521  Burroughianus, Lea, Parana River, Tst AmeP Ss v. 5, pl. 10.t.27- 
1522 ~=celatus, Conrad, Tennessee, Silliman’s Jour., v. 25, pl. 1, f. 2. 
1523 ~=ceruleus, Lea, Hoogly River, Ts. Am: P.S., v. 4, pl. 13, f. 25. 
1524 = callosus, Lea, Ohio Canal, Ts. Am: PS,, v. 8, pl. 28, f. 54. 
camelus, Lea, Ohio River, Ts. Am. P.S., v. 5, pl. 15, f. 45. is Unio fasciolaris, Raf. 
1525 camptodon, Say, New Orleans, Amer. Conch., pl. 42. 
1526 — capax, Green, Louisiana, Conr. Mon., p. 75, pl. 42. Unio globosus, Lea. 
1527 ‘var. Ohio River, TsyAm bs Ss v-rospl. 4; f. 12. 
1528 Capigliola, Payr., . 551 Corsica, Cat. de Corse, p. 66, pl. 2, f. 4. Unio pictorum? var. 
capillaris, Lea, Ohio, Ts. Am. P.S., v. 5, pl. 2, f. 2. is Unio personatus, Say. 
1529 Capseformis, Lea, Cumberland River, Ts. Am. P.S., v. 5, pl. 2, f. 4. 
