250 [February 



Unio furvus, Co?i., New F. W. Shells, 39, 6, 3. 



Lea, Synopsis, 40. 



U. Hanleyanus ? x. 279, 23, 37. 



U. Troschelianus ? x. 286, 23, 39. 

 fuliginosus. Lea, 1845, x. 280, 23, 37, Synopsis, 33. 

 fuscatus. Lea, 1846, ix. 277, 40, 4, Synopsis, 30. 

 Geddingsianus, Lea, 1841, viii. 202, U, 15, Synopsis 33. 



Chenu. Conchyl. Unio, pi. 31, fig. 3. 



Georgianus, Lea, 1841, viii. 235, 21, 49. Synopsis 27. 

 Chenu. Conchyl. Unio, pi. 32, fig. 3. 



gibber. Lea, vi. 35, 10, 30. Synopsis, 24. 

 Chenu. Conchyl. Unio, pi. 23, fig. 2. 



Gibbesianus, Lea, 1852, x. 254, 12, 2, Synopsis 33. 



glaber. Lea, 1838, vi. 34, 10,29, Synopsis 31. 

 Chenu. Conchyl. Unio, pi. 24, fig. 3. 



glans, Lea, 1832, iv. 82, 8, 12, Synopsis 31. 

 Chenu. Conchyl. Unio, pi. S. fig. 9. 

 U. Brumbyanus, Lea, 1841, viii. 245,26. 62. 



Gouldii, Lea, 1845, x. 76, 6, 16, Synopsis 29. 



graniferus, Lea, vi. 69, 19, 60, Synopsis 22. 

 Chenu. Conchyl. Unio, pi. 25, fig. 3. 



Greenii, Con., New Fresh Water Shells, 1834. 32, 4, 1. 

 Monog. 69,38,2. 

 Lea, Synopsis, 27. 

 U. simplex, Lea, 1845, x. 76, 5, 15, Synopsis 27. 



Griffithianus, Lea, 1834, v. 103, 15, 46, Synopsis 33. 



Haleianus, Lea, 1842, viii. 247, 27, 63, Synopsis 31. 



Chenu. Conchyl. Unio, pi. 26, fig. 6. 

 Hayesianus, Lea, 1834, v. 35, 3, 7, Synopsis 26. 



hebes. Lea, 1852, x. 267, 18, 21, Synopsis 26. 



heterodon, Lea, 1833, iii. 428, 8, 11, Synopsis 24 . 

 Con. Monog. 90, 49, 3. 

 Fer. Guerin's Mag., 1835, 26. 

 Chenu. Conchyl. Unio, pi. 16, fig. 2. 



Holstonensis, Lm, 1841, viii. 212, 15,27, Synopsis 25. 



Chenu. Conchyl. Unio, pi. 32, fig. 1. y 



hyalinus. Lea, 1845, x. 69, 2, 4, Synopsis 39. 



Hydianus, Lea, 1838, vi. 14, 6, 14, Synopsis, 28. 

 Chenu, Conchyl. Unio, pi. 17, fig. 3. 

 U. Claibornensis ? Lea. 



icterinus, Con. New Fresh Water Shells, May 1834, 41, 6, 5. 

 Monog. 39, 18, 2. 

 U. fulvus, Lea, Aug. 1834, v. 96, 13, 39. 



ineptus. Lea, 1852, x. 261, 15, 12, Synopsis, 31. 



infucatus. Con. New Fresh Water Shells, 45, 3, 2. 



Lea, Synopsis, 20. 



U. securiformis ? Con. 

 intermedius. Con. Monog. 63, 35, 1. 



Lea, Synopsis, 22. 



interruptiis, Raf. Ann. v. 36, Poulson's trans. 33. 

 Con. Monog. 88, 48. 

 Fer. Guerin, Mag. 28. 

 I ^ay, Amer. Conch, syn. No. 26. 



U. brevidensj'icff, vi. 15, 6, 15, Synopsis, 32. 

 Chenii, Conchyl. Unio, pi. 8, fig. G. 



