748 PEOCEEDINGS OF THE NATIONAL MUSEUM. 



fPLEUROBEMA CUNEOLUS Lea. 



* Unio cuneolus Lea, Pr. Am. Phil. Soc, I, 1840, p. 286; " Tr. Am. Phil. Soc, VIII, 



1842, p. 193, pi. vii, fig. 3; *Obs., Ill, 1842, p. 31, pi. vii, fig. 3.— *Conrad, Pr. 

 Ac. N. Sci. Phila., VI, 1853, p.247.— *H. and A.Adams, Gen. Rec. Moll., II, 

 1857, p. 495.— 'Chenu, 111. Conch., 18.58, pi. xxx, figs. 2, 2a, 2&.— " Kuster, 

 Conch. Cab. Unio, 1861, p. 182, pi. lxvii, fig. 4.— *■ Reeve, Conch. Icon., XVI, 

 1865, pi. xxiii, fig. 107.—" B. H. Wright, Check List, 1888.— *' P^tel, Conch, 

 Sam., Ill, 1890, p. 149. 



* Margaron ( Unio) cuneolus Lea, Syn., 1852, p. 24; 1870, p. 38. 



t* Unio clinchensis Lea, Pr. Ac. N. Sci. Phila., XI, 1867, p. 81; * Jl. Ac. N. Sci. 

 Phila., VI, 1868, p. 278, pi. xxxvii, fig. 91 ; * Obs., XII, 1869, p. 38, pi. xxxvii, 

 fig. 91.—* B.H.Wright, Check List, 1888.—* P^tel, Conch. Sam., Ill, 1890, 

 p. 148. 



* Margaron ( Unio) clinchensis Lea, Syn., 1870, p. 38. 



Tennessee Eiver system. 



tPLEUROBEMA LESLEY! Lea. 



* Unio lesleyi Lea, Pr. Ac. N. Sci. Phila., IV, 1860, p. 306; *J1. Ac. N. Sci. Phila., 



IV, 1860, p. 352, pi. LViii, fig. 177 ; * Obs., VIII, 1860, p. 34, pi. lviii, fig. 177.— 

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



* Margaron ( Unio) lesleyi Lea, Syn., 1870, p. 40. 



Kentucky; Tennessee. 



tPLEUROBEMA RAVENELIANA Lea. 



*Z7nio ravenelianns Lea,' Tr. Am. Phil. Soc, V, 1834, p. 32, pi. iii, fig. 5; *Obs., 

 1, 1834, p. 144, pi. Ill, fig. 5.— *Ferussac, Guer. Mag., 1835, p. 29.— ^Hanley, 

 Test. Moll., 1842, p. 187; *Biv. Shells, 1843, p. 187, pi. xx, fig. 59.—* Catlow 

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

 1857, p. 495.—* KuSTER,Conch.Cab. Unio, 1862, p. 269, pi. xci, fig. 1.—* Reeve, 

 Conch. Icon., XVI, 1864, pi. xvi, fig. 70.—* B. H. Wright, Check List, 1888. 



^Margarita (Unio) ravenelianns Lea, Syn., 1836, p. 22; 1838, p. 18. 



*Margaron {Unio) ravenelianns, Lea, Syn., 1852, p. 26; 1870, p. 40. 



*Unio rudis Conrad, Monog., IX, 1837, p. 76, pi. xliii, fig. 1.—* Conrad, Pr. 

 Acad. N. Sci. Phila., VI, 1853, p. 257. 



*Unio decisus Kuster, (part^ Conch. Cab. Unio, 1852, p. 41, pi. viii, fig. 1. 



Kentucky; Tennessee; western North Carolina. 



tPLEUROBEMA OVIFORMIS Conrad. 



* Unio oviformis Conrad, New F. W. Shells, 1834, p. 46, pi. iii, fig. 6; p. 70.— 



*Ferussac, Guer. Mag., 1835, p. 29.— * Moller, Syn. Nov. Gen., 1836, p. 

 208.— *Chenu, Bib. Conch., 1st ser.. Ill, 1845, p. 22, pi. ii, fig. 7.—* Con- 

 rad, Pr. Ac. N. Sci. Phila., VI, 1853, p. 254.— *H. and A. Adams, Gen. Kec. 

 Moll., II, 1857, p. 495.— *B. H. Wright, Check List, 1888.— * P^tel, Coiicb. 

 Sam., Ill, 1890, p. 162. 

 Margaron {Unio) oviformis Lea, Syn., 1852, p. 26; 1870, p. 40. 



Tennessee. 



' In May, 1834, Conrad published a Unio raveneli in New Fresh Water Shells (p. 39) 

 wtiicli belongs to the complanatus group. Lea's name, ravenelianns, appeared in 

 August or September of the same year. Conrad, claiming priority for liis name, 

 substituted that of Unio rudis for Lea's species. As the names are really different, 

 that of Lea had better stand. 



