NO. 1205. SYNOPSIS OF THE NAIADES— SIMPSON. 645 



* Clessin, Conch. Cab. Aao., 1874, p. 132, pi. XLiv, figs. 5, 6.—* B. H. Wright, 

 Check List, 1888.—* P.etel, Couch. Sam., Ill, 1890, p. 176. 



^Margaron (Anodonta) bealei Lea, Syn., 1870, p. 81. 



Texas to Kansas. 



t ANODONTA TEXASENSIS Lea.i 



* Anodonta texasensis Lea, Pr. Ac. N. Sci. Phila., Ill, 1859, p. 113; ^ Jl. Ac. N. Sci. 



Phila., IV, 1860, p. 366, pi. lxiii, fig. 191 ; * Obs., VIII, 1860, p. 48, pL lxiii, 

 fig. 191.— * Clessin, Conch. Cab. Ano., 1873, p. 109, pi. xxxiii, figs. 7, 8.— 



* B. H. Weight, Check List, 1888.— " P.etel, Conch. Sam., Ill, 1890, p. 185. 



* Anodon texasensis Sowerby, Conch. Icon., XVII, 1870, pi. xxxvi, fig. 146. 



* Margaron (Anodonta) texasensis Lea, Syn., 1870, p. 81. 



Texas. 



t ANODONTA DANIELSII Lea. 



* Anodonta danielsii Lea, Pr. Ac. X. Sci. Phila., II, 1858, p. 139; * .11. Ac. N. Sci. 



Phila., IV, 1860, p. 365, pi. lxiii, fig. 190; * Obs., VIII, 1860, p. 47, pi. lxiii, 

 fig. 190.— * Clessin, Conch. Cab. Ano., 1873, p. 108, pi. xxxiii, figs. 1, 2.— 

 *B. H. Wright, Check List, 1888.—* P.etel, Conch. Sam., Ill, 1890, p. 178. 



* Margaron (Anodonta) danielsii IjEa, Syn., 1870, p. 78. 



* Anodonta danielsii Sowerby, Conch. Icon., XVII, 1870, pi. xxxvi, fig. 148. 

 " Margaritana danielsii P^tel, Conch. Sam., Ill, 1890, p. 173. 



Kansas ; Indian Territory. 



t ANODONTA OPACA Lea. 



"Anodonta opaca Lea, Tr. Am. Phil. Soc, X, 1852, p. 285, pi. xxv, fig. 46; * Obs., 

 V, 1852, p. 41, pi. xxv, fig. 46.—* Conrad, Pr. Ac. N. Sci. Phila., VI, 1853, p. 

 264.— ** H. and A. Adams, Gen. Rec. Moll., II, 1857, p. 503.—* Clessin, Conch. 

 Cab. Ano., 1875, p. 209, pi. LXiv, tigs. 1, 2.—* B. H. Wright, Cheek List, 1888. 



* Margaron (Anodonta) opaca Lea, Syn., 1852, p. 50; 1870, p. 80. 



Louisiana; Mississijipi; north to Kansas. 



t ANODONTA STEWARTIANA Lea. 



* Anodonta stewartiana Lea, Tr. Am. Phil. Soc, V, 1834, p. 47, pi. vi, fig. 17; Obs., 



I, 1834, p. 159, pi. VI, fig. 17.—* Ferussac, Guer. Mag., 1835, p. 25.—* Han- 

 ley, Test. Moll., 1842, p. 220; *Biv. Shells, 1843, p. 220.— * Conrad, Pr. Ac. N. 

 Sci. Phila., VI, 1853, p. 264.—* H. and A. Adams, Gen. Rec. Moll., II, 1857, p. 

 503.—* Clessin, Conch. Cab. Ano., 1874, pi. xlviii, figs. 3, 4.—* B. H. Wright, 

 Check List, 1888.— * P^etel, Couch. Sam., Ill, 1890, p. 185. 

 '^Margarita (Anodonta) stewartiana Lea, Syn., 1836, p. 52; 1838, p. 31. 



* Anodon stewartiana Catlow and Reeve, Conch. Nom., 1845, p. 68. 



* Anodon steivartianus Sowerby, Conch. Icon., XVII, 1870, pi. xxxii, fig. 133. 



* Margaron (Anodonta) stewartiana Lea, Syn., 1852, p. 51; 1870, p. 81. 



*t Anodonta virens Lea, Tr. Am. Phil. Soc, X, 1852, p. 290, pi. xviii, fig. 53 ; * Obs., 

 V, 1852, p. 46, pi. XXVIII, fig. 53.—* Conrad, Pr. Ac. N. Sci. Phila., VI, 1853, 

 p. 267.—* H. and A. Adams, Gen. Rec. Moll., II, 1857, p. 503.—* B. H. Wright, 

 Check List, 1888. 



* Margaron (Anodonta) virens Lea, Syn., 1852, p. 51; 1870, p. 81. 



* Anodon virens Sowerby, Conch. Icon., XVII, 1870, pi. xxxiv, fig. 138. 



Arkansas; Louisiana; Texas. 



'A very young, broken shell, greatly inflated in the post basal region, is all that 

 Lea has in his collection. It may be a distinct species, or a mere variety of grandis. 



