NO. iiiu.v SYXorXfS OF THE X.I I. IDES SfMI'SoX. 531 



*Sympnynota ocliracea LEA, Tr. Am. Phil. Soc., Ill, 1830, p. 455 ; *Obs. 1. 1834, p. 69. 

 * Margarita (Utiio) ochracea LEA, Syn., 1836, p. 23; 1838, p. 18. 

 *LampsiUs ocliracea STIMPSON, Shells of N. Eng., 1851, p. 14. 



* Unio crocatus LEA, Pr. Am. Phil. Soc., II, 1841, p. 31 ; *Tr. Am. Phil. Soc., VIII, 



1842, p. 238, pi. xxn, fig. 52; " Obs.. Ill, 1842, p. 76, pi. xxn, fig. 52. * CONRAD, 

 Pr. Ac. N. Sci. Phila., VI, 1853, p. 247.* CHEXU, 111. Conch., 1858, pi. xxxin, 

 figs. 1, la, !&. * H. and A. ADAMS, Gen. Rec. Moll., II, 1857, p. 493. *B. H. 

 WRIGHT, Check List, 1888. * P.KTEL, Conch. Sam., Ill, 1890, p. 149. 



*Naryaron (Unio) crocatus LEA, Syn., 1852, p. 27; 1870, p. 42. 



*Unio rosaceus CONRAD, Pr. Acad. N. Sci., Phila., IV, 1849, p. 153; *Anu. and 

 Mag. Nat. Hist., IV, 1849, p. 303; Ml. Acad. N. Sci., Phila., I, 1850, p. 275, 

 pi. xxxvn, iig. 5. 



* Unio troostensis SOWERBY, Conch. Icon., XVI, 1866, pi. xxxvin, fig. 210. 



* Unio affinis SOWERBY? Conch. Icon., XVI, 1868, pi. LXIII, fig. 318. 



Atlantic drainage, from New England to the Ogeechee River, 

 Georgia. 



tLAMPSILIS SPLENDIDUS Lea. 



* Unio 8plendidus LEA, Tr. Am. Phil. Soc., VI, 1838, p. 70, pi. xix, fig. 61 ; * Obs., II, 



1838, p. 70, pi. xix, fig. 61. *TROSCHEL, Arch, fur Naturg.,V, 1839, Pt. 2, p. 

 237.* HAXLEY, Test. Moll., 1842, p. 190; *Biv. Shells, 1843, p. 190.* CATLOW 

 and REEVE, Conch. Norn., 1845, p. 64. * KUSTER, Conch. Cab. Unio, 1852, p. 

 55, pi. xn, fig. 2.* CONRAD, Pr. Ac. N. Sci. Phila., VI, 1853, p. 257.--* H. and A. 

 ADAMS, Gen. Rec. Moll., II, 1857, p. 495. *CHENU, 111. Conch., 1858, pi. xvn, 

 figs. 7, la, 76.* SOWERBY, Conch. Icon., XVI, 1866, pi. xxxi, fig. 161.* B. H. 

 WRIGHT, Check List, 1888.* P *:TEL, Conch. Sam., Ill, 1890, p. 168. 



* Margarita ( Unio) splendidus LEA, Syn., 1836, p. 23 ; 1838, p. 18. 



* Margaron ( Unio) splendidus LEA, Syn., 1852, p. 27 ; 1870, p. 42. 



* Unio regnlaris SOWERBY, Conch. Icon., XVI, 1868, pi. xxxiv, fig. 181. 



Altamaha and Ogeechee rivers, Georgia. 



LAMPSILIS DELUMBIS Conrad. 1 



* Unio delunibis CONRAD, New F. W. Shells, 1834, p. 35, pi. v, fig. 3 ; p. 69. * FERUS- 



SAC, Guerin Mag.. 1835, p. 29. * MOLLER, Syn. Nov. Gen., 1836, p. 204. 

 *CHENU, Bib. Conch., 1st ser., Ill, 1845, p. 18, pi. n, fig. 10. * CONRAD, Pr. 

 Ac. N. Sci. Phila., VI, 1857, p. 248. *B. H. WRIGHT, Check List, 1888. 

 *P,ETEL, Conch. Satn., Ill, 1890, p. 150. 



Small streams near Cooper River, South Carolina. 



tLAMPSILIS PEROVALIS Conrad. 



*Unio perovalis CONRAD, New F. W. Shells, 1834, p. 43, pi. n, fig. 2, p. 71. 

 *FERUSSAC, Guer. Mag., 1835, p. 29.* MOLLER, Syn. Nov. Gen., 1836, p. 207. 

 * HANLEY, Test. Moll., 1842, p. 191; *Biv. Shells, 1843, p. 191. *CATI.O\V and 

 REEVE, Conch. Nom., 1845, p. 62. *CHENU, Bib. Conch., 1st ser., Ill, 184">, p. 

 21, pi. i, fig. 2.* CONRAD, Pr. Ac. Nat. Sci. Phila., VI, 1853, p. 254.* H. and A. 

 ADAMS, Gen. Rec. Moll., II, 1857, p. 494. * KUSTER, Conch. Cab. Unio, 1861, 

 p. 257, pi. LXXXVII, fig. 2. *B. H.WRIGHT, Check List, 1888. *P.E TEL, 

 Couch. Sam., Ill, 1890, p. 163. 



* Margarita ( Unio) perocalis LEA, Syn., 1836, p. 24; 1838, p. 19. 



* Margaron ( Unio) perovalis LEA, Syn., 1852, p. 27 ; 1870, p. 42. 



Alabama and Black Warrior rivers. 



'This maybe a valid species, but it looks from the figure like an elongated 



ochraceus. 



