NO. 1205. SYKOPSTS OF THE K.lTADES—SIMrSOK. 541 



tLAMPSILIS TiENIATUS Conrad. 



* Unio twniatus Conrad, New F. W. Shells, 1834, pp. 26, 72, pi. iv, fig. 2.'— 'Ferus- 



SAC, Guer. Mag., 1835, p. 29.— Moller, Syn. Nov. Gen., 1836, p. 201.—^^ Hani.e y, 

 Test. Moll., 1842, p. 191; *BiY. Shells, 1843, p. 191.— *Chenu, Bib. Conch., 1st 

 ser.. Ill, 1845, p. 15.— "Catlow and. Reeve, Conch. Nom., 1845, p. 64.— ""CoN- 

 RAD, Pr. Ac. N. Sci. Phila., VI, 1853, p. 258.—^ Kuster, Conch. Cab. Unio, 1862, 

 p. 271, pl.xci, fig. 4.— *B. H. Wright, Check List, 1888. 



*Margarita ( Unio) twniatits Lea, Syn., 1836, p. 24; 1838, p. 19. 



*Unio taniatus Pjstel, Conch. Sam., Ill, 1890, p. 169. 



"^ Unio vienkiantis JjEAjTr. Am. Phil. Soc, V, 1836, p. 76, pi. xix, fig. .59; "'Obs., II, 

 1838, p. 76, pi. XIX, fig. 59.— * Troschel, Arch. fiirNaturg., V, 1839, Pt. 2, p. 

 237.—* Hanley, Test. Moll., 1842, p. 191 ; * Biv. Shells, 1843, p. 191, pi. xxiii, 

 fig. 4. — *Catlow and Reeve, Conch. Nom., 1845, p. 61. — "Conrad, Pr. Ac. N. 

 Sci. Phila., VI, 1853, p. 252.— *Chenu, 111. Conch., 1858, pi. xix, figs. 4, 4a, 

 4&. — *H. and A. Adams, Gen. Rec. Moll., II, 1857, p. 492.— * Kuster, Conch. 

 Cab. Unio, 1861, p. 245, pi. Lxxxii, fig. 3.—* Reeve, Conch. Icon., XVI, pi. 

 XXVIII, fig. 140. — "■ B. H. Wright, Check List, 1888. — *P^tel, Conch. Sam., 

 HI, 1890, p. 159. 



^Margarita ( Unio) menkianus Lea, Syn., 1838, p. 19. 



* Margaron ( Unio) menkianus Lea, Syn., 1852, p. 27 ; 1870, p. 43. 



*?7wioj)«Zc7(erLEA, Tr. Am. Phil. Soc, VI, 1838, p. 6, pi. iii, fig. 6; *Obs., II, 1838, 

 p. 6, pi. Ill, fig. 6.— *Troschel, Arch. fiirNaturg.,V, 1839, Pt. 2, p. 234.—* Han- 

 ley, Test. Moll., 1842, p. 193; " Biv. Shells, 1843, p. 193, pi. xxiii, fig. 7.— *Cat- 

 Low and Reeve, Conch. Nom., 1845, p. 63. — *H. and. A. Adams, Gen. Rec. 

 Moll., II, 1857, p. 494.— *Chenu, 111. Conch., 1858, pi. xvii, figs. 2, 2a, 2b.— 

 * Kuster, Conch. Cab. Unio, 1861, p. 193, pi. lxi, fig. 5.— *E. H. Wright, 

 Check List, 1888.—* P.etel, Conch. Sam., Ill, 1890, p. 164. 



^Margarita ( Unio) pulclier Lea, Syn., 1836, p. 25 ; 1838, p. 19. 



* Margaron ( Unio) pulcher Lea, Syn., 1852, p. 28 ; 1870, p. 44. 



*Unio interruptuslj^A.,Ty:. Am. Phil. Soc, VI, 1838, p. 15, pi. vi, fig. 15 ; *0b8.,ll, 

 1838, p. 15, pi. VI, fig. 15.—" Hanley, Test. Moll., 1842, p. 191 ; * Biv. Shells, 1843, 

 p. 191, pi. XXI, fig. 28.— *Catlow and Reeve, Conch. Nom., 1845, p. 60.— *H. 

 and A. Adams, Gen. Rec. Moll., II, 1857, p. 494.—^ Chenu, 111. Conch, 1858, pi. 

 XVII, figs. 4, 4a, 46.—* B. H. Wright, Check List, 1888. 



* Margarita ( Unio) interruptus Lea, Syn., 1836, p. 24; 1838, p. 19. 



* Margaron ( Unio) interruptus Lea, Syn., 1852, p. 27; 1870, p. 43. 



*Unio latiradiatus Conrad, Monog., XI, 1838, p. 96, pi. Liii; Pr. Ac. N. Sci. 

 Phila., VI, 1853, p. 251.— * Kuster, Conch. Cab. Unio, 1861, p. 208, pi. lxix, 

 fig. 3.— P^tel, Conch. Sam., Ill, 1890, p. 151. 



*Unio tennesseensis LEA,2Pr. Am. Phil. Soc, I, 1840, p. 288; *Tr. Am. Phil. Soc, 

 VIII, 1843, p. 199, pi. X, fig. 11 ; « * Obs., Ill, 1842, p. 37, pi. x, fig. 11.— *Conrad, 

 Pr. Ac N. Sci. Phila., VI, 1853, p. 258.—* H. and A. Adams, Gen. Rec. Moll., II, 

 1857, p. 495.— * Chenu, 111. Conch., 1858, pi. xxvii, figs. 1, la, 1&.— *B. H. 

 Wright, Check List, 1888.— *P.etel, Conch. Sam., Ill, 1890, p. 169. 



^Margaron (Unio) tennesseensis Lea, Syn., 1852, p. 27; 1870, p. 43. 



* Unio perdix Reeve, Conch. Icon., XVI, 1864, pi. xviii, fig. 82. 



Tennessee and Cumberland river systems. 



1 Lea places this species in the synonymy of his Unio interruptus, in the Synopsis. 

 The latter was not published until 1838. 



2 The type is an old female tasniatus, very solid, and but slightly rayed. 



^Lea states in the above citation that this species has radial beak sculpture. The 

 beaks of his type are slightly eroded, having the appearance of somewhat rayed ridges, 

 and I have seen the same thing in the eroded beaks of Unio rotundatus Lamarck, 

 but it is not true beak sculpture. Many Unios when decomposing exhibit throughout 

 their shells a somewhat radial structure, and that is what is shown in this case. 



