1853.) 245 
Wi ~, Unio angustatus, Lea, 1832, v. 114, 17, 43. Synopsis 23. 
j Con. Monog. 98, 54, 2. 
} Chenz, pl. 14, fig. i 
| ; apiculatus, Say, New Harm. Dissem., 1829, Amer. Conch. pl. 22. 
| Con. Monog. 78, 44, 1. 
) Lea, Synopsis, 22. 
| U. asper, Jzy, not Lea, Jay’s Catalogue, 55. 
approximus, Lea, 1845, x. 74, 5, 13. Synopsis 28. 
| id | *arctior, Lea, 1838, vi. 10, 4,10, Synopsis, 38. 
ine Chenu, Conchyl. Unio, 21, 2. 
i arctatus, Con., Sill. Jour., xxv. 340, 1,9; New F. W. Shells, 36, 5, 4. 
Lea, Synopsis, 38. 
arcus, Cov., Sillim. Jour. 1834, xxv. 340.1, 8. 
: Lea, Synopsis, 38. 
{ argenteus, Lea, 1841, viii. 242, 25, 57, Synopsis, 26. ° 
|e _ Chenu, Conchyl. Unio, pl. 33, fig. Be 
iH) asper, Lea, (a) 1832, iv. 89, 9, 15, Seer 22. 
| Chenu, Conchy]l. Unio, pl. 15, fie. 4 
| U. apiculatus, var. Tien. Catalogue, No. 1496, 55. 
Barrattil, Lea, 1852, x. 256,13, Synopsis, 37. 
we Barnesianus, Lea, 1838, vi. 31, 10,26, Synopsis, 24. 
Chenu, Conchyl. Unio, pl. 19, fig. 2. 
: *biangulatus, Lea, 1841, vill. 197, 9, 8, Synopsis 38. 
Chenu, Conchyl. Unio, pl. 30, fig. 7. 
Bigbyensis, Lea, 1841, viii. 237, 22, 51, Synopsis 24. 
Chenu, Conchyl. Unio, pl. 26, fig. 5. 
Binneyi, Lea, 1845, x. 77, 6,18, Synopsis 29. 
ae _Blandingianus, Lea, Aug. 1834, v.101, 15, 44, Synopsis 33. 
1 Con. Monog. 46, 23, 3. 
Kust., Chemn. Unio, 36, 6,2. 
Bournianus, Lea, 1841, Synopsis 24, vili. 213, 15, 28. 
Chenu, Conchyl]. Unio, pl. 28, fig. 2. 
Brumbyanus, Lea, 1841, vill. 245, 26, 62, Synopsis 31. 
We), > ~ Boydianus, Lea, 1841, vill. 216, 16, 32, Synopsis 38. 
» Chenu, Conchyl. Unio, pl. 32, fic. 2, 
Me Buckleyi, Lea, 1846, ix. 276, 39, 2, Synopsis 30. 
(ag Buddianus, Lea, 1846, ix. 277, 40, 4, Synopsis 32. 
buxeus, Lea, 1852, x. 261, 15, 13, Synopsis 29. 
__ bullatus,* Raf. Ann., Sept. 1820, v.41. Poulson’s Trans., 23. 
* Con., Monog. 82, 45, 2. 
Ferussac, Guerin’s Mag. 28. 
hae), _U. verrucosus albus, Hildreth, Sillim. Journ. xiv. 289. 
ee U. pustulosus, Lea, 1832, iv. 76,7, 7. Synopsis, 22. 
Chenu, Conchyl. Unio, pl. 18, fig. 2. 
capax, Green, Cab. of Nat. Hist. 1832, ii. 290. 
Con., Monog. 75, 42. 
| Ferussac, Guerin’s Mag. 1835, 26. / 
ALLOW, Symphynota globosa, Lea, 1834, jv. 153, Als 
U. capax, Kust. Chemn. Unio, 21, 15, 3. 
Lea, Synopsis, 27. 
celatus, Con., Sillim. Journ. 1834, xxv. 338, 1, 2. 
Lea, Synopsis, 20. 
* Say makes this species the same as Mya modulosa, Wood, which is very 
different, and evidently not an American species. 
en ec 
