538 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL.XXII. 



II, 1857, p. 494.* B. H. WRIGHT, Check List, 1888.* P.ETEL, Conch. Sam., 



III, 1890, p. 162. 



Maryarw ( Unio) pallescens LEA, Syn., 1852, p. 27; 1870, p. 43. 



Gulf drainage of the United States, from the Flint to the Pearl River. 



t LAMPSILIS PORPHYREUS Lea.' 



I'nio porphi/reus LEA, Pr. Ac. X. Sci. Phila., V, 1861, p. 60; * .11. Ac. N. Sci. Phihi., 

 V, 1862. p. 80, pi. x, fig. 228; *Obs., VIII, 1862, p. 84, pi. x, fig. 228. B. H. 

 WRIGHT, Check List, 1888. 

 Manjtiron (Unio) porphyreus LEA, Syn., 1870, p. 41. 



Cahawba and Ooosa rivers, Alabama. 



t LAMPSILIS STRAMINEUS Conrad. 



* Unio stramineus CONRAD, Am. Jl. Sci., XXV, 1834, p. 339, pi. i, fig. 6; * New F. 



W. Shells, 1834, p. 71. *FERUSSAC, Guer. Mag., 1835, p. 29. * M>LLER, Syn. 

 Nov. Gen., 1836, p. 198. * CONRAD, Monog., X, 1838, p. 91, pi. L, fig. 1. 

 *HANLEY, Test. Moll., 1842, p. 209; *Biv. Shells, 1843, p. 209, pi. xxm, 

 fig. 45. *CATLOW and REEVE, Conch. Norn., 1845, p. 64. * CONRAD, Pr. 

 Acad. N. Sci. Phila., VI, 1853, p. 258. *H. and A. ADAMS, Gen. Rec. Moll., 

 II, 1857, p. 495. *SOWKRBY, Conch. Icon., XVI, 1866, pi. xxxix, fig. 217, 

 1868, pi. j,xxx, fig. 422. ^B. H. WRIGHT, Check List, 1888. * P.ETEL 

 Conch. Sam., Ill, 1890, p. 168. 



* Margarita (Unio) stramineus LEA, Syn., 1836, p. 39; 1838, p. 25. 



* Margaron ( Unio) stramineus LEA, Syn , 1852, p. 28; 1870, p. 35. 



Southern Alabama, southern Mississippi. 



t LAMPSILIS REEVIANUS Lea. 



* Unio reerianm LEA, Tr. Am. Phil. Soc., X, 1852, p. 272, pi. xx, fig. 28; *Obs.. V, 



1852, p. 28, pi. xx, fig. 28.* CONRAD, Pr. Ac. N. Sci. Phila., VI, 1853, p. 256. 

 *H. and A. ADAMS, Gen. Rec. Moll., II, 1857, p. 494. * KUSTER, Conch. Cab. 

 Unio., 1861, p. 247, pi. LXXXIII, fig. 2. * B. H. WRIGHT, Check List, 1888. 

 *P.TEL, Conch. Sam., Ill, 1890, p. 165. 

 *Margaron ( Unio) reevianus LEA, Syn., 1852, p. 28 ; 1870, p. 44. 

 Louisiana; Texas; Arkansas. 



f LAMPSILIS POWELLII Lea. 



* Unio powellii LEA, Pr. Am. Phil. Soc., V, 1852, p. 252 ; * Tr. Am. Phil. Soc., X, 1853, 



p. 270, pi. xix, fig. 25; *0bs., V, 1852, p. 26, pi. xix, fig. 25. * CONRAD, Pr. 

 Ac. N. Sci. Phila., VI, 1853, p. 255. *H. and A. ADAMS, Gen. Rec. Moll., 

 II, 1857, p. 494. *MUSGRAVE, Phot. Conch., 1863, pi. n, fig. 8. *Sow- 

 ERBY, Couch. Icon., XVI, 1868, pi. LXX, fig. 359.* B. H. WRIGHT, Check List, 

 1888.* P.ETEL, Conch. Sam., Ill, 1890, p. 164. 

 *Mar(jaron ( Unio) powellii LEA, Syn., 1852, p. 28; 1870, p. 44. 



Salina and Clinton, Arkansas; Guadalupe River, Texas; Spring 

 River, Kansas (Cragin). 



'I am a little uncertain as to where this species should be placed, as I have only 

 seen the two specimens in the Lea collection, which arc very poor and distorted. 

 The uacre is purple. 



