SYNOPSIS OF THE NAIADMS—SIMPSON. 701 



t PLEUROBEMA STRODEANA B.H.Wright. 



*Unio strodeanus B. H. Wright, Nautilus, XII, 1898, p. 5. 



Tleurobema strodeana Simpsox, Pr. Ac. N. Sci. Phila., 1900, p. 81, pi. i, fig. 3. 



Escambia River, Florida ; Flint River, Rhoadsville, Georgia. 



t PLEUROBEMA PATSALIGENSIS Simpson 

 *Pleurobenia patsaligenais Simpson, Pr. Ac. N. Sci. Phila., 1900, p. 82, pi. ii, fig. 1. 

 Little Patsaliga Creek, soutbeast Alabama. 



t PLEUROBEMA FAVOSA Lea. 



* Unto favosus Lea, Proc. Acad. N. Sci. Phila., VIII, 1856, p. 262 ; ■' Jl. Acad. N. Sci. 



Phila., IV, 1858, p. 58, pi. viii, fig. 40; " Obs.,VI, p. 58, pi. viii, fig. 40.—* Sow- 

 ERBY, Conch. Icon., XVI, 1868, pi. xc, fig. 488.—* B. H. Wright, Check List, 

 1888.— *PiETEL, Conch. Sam., Ill, 1890, p. 151. 

 *Margaron (Unio) favosus Lea, Syu., 1870, p. 38. 



Alabama River system. 



fUNIO LENTICULARIS Lea. 



* Unio lenticularis Lea, Pr. Acad. N. Sci. Phila., II, 1872, p 155 ; * Jl. Acad. N. Sci. 



Phila., VIII, 1874, p. 30, pi. ix, fig. 27 ; * Obs., XIII, 1874, p. 34, pi. ix, fig. 27.— 



* B. H. Wright, Check List, 1888. 



Tellico River, Monroe County, Tennessee,- East Tennessee. 



t PLEUROBEMA MEREDITHII Lea. 



* ?7mo meredithii Lea, Pr. Acad. N. Sci. Phila., II, 1858, p. 40; *J1. Acad. N. Sci. 



Phila., V,1862, p. 65, pl.vi, fig. 214; *Obs., VIII, 1862, p. 69, pi. V, fig. 214.— 

 *B. H. Wright, Check List, 1888.— *P.etel, Conch. Sam., Ill, 1890, p. 159. 

 *Margaron (Unio) me7'edithii ]i,^A, Syn., 1870, p. 35. 



Tennessee River system ; Black Warrior River, Alabama. 



t PLEUROBEMA LITA Lea. 



''Unio litus Lea, Pr. Acad. N. Sci. Phila., I, 1871, p. 189; *JI. Acad. N. Sci. Phila., 

 VIII, 1874, p. 17, pi. V, fig. 13; * Obs., XIII, 1874, p. 21, pi. v, fig. 13.—* B. 

 H. Wright, Check List, 1888. 



Caliawba and Black Warrior rivers, Alabama. 



PLEUROBEMA GEORGIANA Lea. 



*Unio (jeorgianus Lea, Pr. Am. Phil. Soc, II, 1841, p. 31; ' *Tr. Am. Phil. Soc, 

 VIII, 1842, p. 235, pi. XXI, fig. 49; * Obs., Ill, 1842, p. 73, pi. xxi, fig. 49.— 



* Conrad, Pr. Acad. N. Sci. Phila., VI, 1853, p. 250. — * H. and A. Adams, Gen. 

 Rec. Moll., II, 1857, p. 494.— *Chenu, 111. Conch., 1858, pi. xxxii, figs. 3, 3a, 

 3&.— *B. H. Wright, Check List, 1888.— " P.etel, Conch. Sam., Ill, 1890, 

 p. 153. 



*Margaron {Unio) georgianus Lea, Syn., 1852, p. 27; 1870, p. 42. 



StumiD Creek, northwest Georgia. 



' I have only seen a single specimen of this, the type, in bad condition, and I can 

 not be certain where it belongs. 



