548 VEOCEEIUXO* or ////; X.ITIOX.U. .v />/; r.u. 



tLAMPSILIS CONCESTATOR Lea. 



/ nio concestator LEA, Pr. Ac. N. Sci. Phila., IX, 1857, p. 31; ' Jl. Ac. X. Sci. 

 Phila., IV, 1858, p. 66, pi. xn,fig. 48; * Obs.,VI, Is.X, p. 66, pi. xn. fig. 48. 



* KUSTER, Conch. Cab. Unio, 1861, p. 178, pi. i.vi. fig. 3. *RKEVK. Conch. 

 Icon., XVI, 1865, pi. xxvi, fig. 128. "B. H. WRIGHT, Check List, 1888. 

 *P.ETEL, Conch. Sain., Ill, 1890, p. 148. * SIMPSON, Pr. U. S.Nat. Mu., 

 XVI, 1892, p. 416, pi. LVIIJ, figs. 2-4. 



~ Margaron ( Unio) concestator LEA, Syn., 1870, p. 45. 



t*Vnioinferce<?ewLEA, Pr.Ac.N. Sci. Phila.. IX, 1857, p. 32; *.T1. Ac. N. Sci. Phila., 



IV, 1858, p. 77, pi. xv, fig. 57; 'Obs., VI, 1858, p. 77, pi. xv. fig. 57. "B. H. 



WRIGHT, Check List, 1888. * P.KTKL, Conch. Sarn., Ill, 1890, p. in:,. 



* Margaron ( Unio) intercedeus LKA, Syn.. 1870, p. 4.~i. 



t* Uniofallax LEA, Pr. Ac. N. Sci. Phila., IX, 1857, p. 32; *J1. Ac. N. Sci. Phila., IV, 

 1858, p. 79, pi. xv, fig. 59; * Obs., VI, 1858, p. 79, pi. xv, fig.59. * KfsTKi:, 

 Conch. Cab. Unio, 1861, p. 206, pi. LXA'III, fig. 7. SOWKUHY, Conch, Icon., 

 XVI, 1868, pi. LXXX, fig. 418. *B. H. WRIGHT, Check List, 1888. *PJETEL, 

 Conch. Sam., Ill, 1890, p. 152. 



* Margaron ( Unio) fallax LEA Syn., 1870, p. 45. 



t* Unio contiguus LEA,' Proc. Ac. N. Sci. Phila., VI. 1861, p. 392; * Jl. Ac. N. Sci. 

 Phila., V, 1862, p. 199, pi. xxvm, fig. 268; Obs., IX, 1863, p. 21, pi. xxvm, fig. 

 268. B. H. WRIGHT, Check List, 1888. P.ETEL, Conch. Sam., Ill, 1890, p. 148. 



* Margaron ( Unio) contiguus LEA, Syn., 1870, p. 45. 



Tnio bi-caelatus REEVE, Couch. Icon., XVI, 1865, pi. xxvi, fig. 130. T.-KTEL, 



Conch. Sam., Ill, 1890, p. 146. 

 t * Unio genuinns LEA, Pr. Ac. N. Sci. Phila., XX, 1868, p. 161; * Jl. Ac. N. Sci. Phil., 



VI, 1868, p. 305, pi. XLVI, fig. 117; *Obs.,XII, 1869, p. 64, pi. XLVI, fig. 117. 



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



* Maryaron ( Unio) genuinus LEA, Syn., 1870, p. 45. 



oSorth Carolina, iu streams flowing into the sea, to Louisiana, and 

 possibly to Texas. Some specimens are very close to lienosus. 



LAMPSILIS PROPRIUS Lea. 2 



* Unioproprius LEA, Pr. Ac. N. Sci. Phila., IX, 1865, p. 89; * Jl. Ac. N. Sci. Phila., 



VI, 1869, p. 256, pi. xxxi, fig. 70; *Obs., XII, 1869, p. 16, pi. xxxi, fig. 70. 



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



* Margaron ( Unio) proprius LEA, Syn., 1870, p. 45. 



* Unio siriatus SOWERBY, Conch. Icon., XVI, 1868. pi. LXXVIII. fig. 407. 



Walker County, Georgia ; Clinch River, Virginia. 



LAMPSILIS PUNICEUS Haldeman. 



* Unio puniceu* HALDEMAN," Jl. Ac. N. Sci. Phila., VIII, 1842, p. 201. CONRAD, 



Pr. Ac. N. Sci. Phila., VI, 1853, p. 255. B. H. WRIGHT, Check List, 1888. 

 *Margaron ( Unio) pitniceus LEA, Syn., 1870, p. 46. 



Holston River, Tennessee. 



'A large rather thin L. concestator, I think. 



-Possibly distinct, but more likely a men- light- colored variety of L. Vanujrvmensis. 



:i I believe that this species has never been figured. From the description I should 

 judge that it belonged in this group, and it may be synonymous with some one of 

 its species. 



