NO. 1205. SYNOPSIS OF THE NAIADES SIMPSON. 917 



*Anodon trapezeu.8 SPIX, Test. Fluv. Bras., 1827, p. 28, pi. xx, fig. 1. 



* Anodonta trapezeum D'ORBIGNY, Voy. Am. Mer., 1843, pp. 6, 19. 

 * Anodonta trapezea KUSTER, Conch. Cab. Ano., 1853, p. 1, fig. 3. 



* Glabaris trapezea VON JHKKING, Arch, fur Naturg., 1893, p. 57. 



* t Anodonta lato-marginata LEA, Tr. Am. Phil. Soc., V, 1834, p. 76, pi. xn, fig. 34; 



* Obs., 1, 1834, p. 188, pi. xn, tig. 34. * HANLEY. Test. Moll., 1842, p. 221 ; * Biv. 

 Shells, 1843, p. 221, pi. xxiv, fig. 14.* H. and A. ADAMS, Gen. Rec. Moll., II, 

 1857, p. 504.* CHENU, Man., II, 1859, p. 146, fig. 724.' CLESSIN, Conch. Cab., 

 1873, p. 76, pi. xxi, figs. 3, 4. 



* Margarita (Anodonta) lato-marginata LEA, Syn., 1836, p. 53; 1838, p. 31. 



* Margaron (Anodonta) lato-marginata LEA, Syn., 1852, p. 51; 1870, p. 82. 



* Anodon lato-marginatus SOWERBY, Couch. Icon., XVII, 1867, pi. n, fig. 3. 



* Anodon lati-marginata CATLOW and REEVE, Conch. Nom., 1845, p. 67. 



* Anodonta lati-marginata STROBEL, Mat. Mai., Pt. 1, 1874, p. 67. * P^ETEL, 



Conch. Sam., Ill, 1890, p. 181. 



* Anodonta membranacea D'ORBIGNY, Voy. Am. Mer., 1843, p. 616, pi. LXXIX, 



fig. 11. 



* Anodonta solida KUSTER, Conch. Cab. Ano., 1853, p. 50, pi. xii, fig. 1. 



* ? t Anodonta uruguayensis LEA,' Pr. Ac. N. Sci.Phila., IV, 1860, p. 92; * Jl. Ac. N. 



Sci. Phila.,V, 1863, p. 393, pi. XLVIII, fig. 302 ; * Obs., X, 1863, p. 29, pi. XLVIII, 

 fig. 302.* CLESSIN, Conch. Cab., 1874, p. 114, pi. xxxvm, figs. 1, 2. 



* SOWERBY, Conch. Icon., XVII, 1870, pi. xxx, fig. 121, 



* Margaron (Anodonta) uruguayensis LEA, Syn., 1870, p. 83. 



* Columbia uruguayensis P^ETEL, Conch. Sam., Ill, 1890, p. 188. 

 ''Anodonta sinuosa CLESSIN, Conch. Cab. Ano., 1873, p. 90, pi. xxn, figs. 1, 2. 



* Anodonta serpentina CLESSIN, Conch. Cab. Ano., 1876, p. 223, pi. LXXV, figs. 2, 3. 



* P^ETEL, Conch. Sam., Ill, 1890, p. 184. 



GLABARIS PATAGONICUS var. FELIX Pilsbry. 



* Glabaris lato-marginatus LEA, var. felix PILSBRY, Pr. Ac. N. Sci. Phila., 1869, 



p. 563, pi. xxvi, fig. 8. 



' Southern South America, east of the Andes ; the variety in Colonia, 

 Uruguay. 



GLABARIS CRASSUS Swainson. 



* Anodon crassus SWAINSON, Zool. 111., 1st ser., Ill, 1823, pi. CLXVII. 



* Margarita (Anodonta) crassa LEA, Syn., 1836, p. 23 ; 1838, p. 32. 



* Anodonta crassa HANLEY, Test. Moll., 1842, p. 222; *Biv. Shells, 1843, p. 222. 



* H. and A. ADAMS, Gen. Rec. Moll., II, 1857, p. 504. * P^ETEL, Conch. 

 Sam., Ill, 1890, p. 178. 



* Anodon crassa CATLOW and REEVE, Conch. Nom., 1845, p. 66. 



* Margaron (Anodonta) crassa LEA, Syn., 1852, p. 52; 1870, p. 83. 



Eio de la Plata. 



t GLABARIS WYMANII Lea. 



'Anodonta wymanii LEA, Pr. Ac. N. Sci. Phila., IV, 1860, p. 91; * Jl. Ac. N. Sci. 

 Phila., V, 1863, p. 390, pi. XLIV, fig. 294; * Obs., X, 1863, p. 26, pi. XLIV, fig. 

 294. * CLESSIN, Conch. Cab. Ano., 1873, p. 104, pi. xxxn, figs. 1, 2. 



* PASTEL, Conch. Sam., Ill, 1890, p. 186. 



1 An old worn shell the type is the only one in the Lea collection, save a few 

 very young that are doubtfully the same. It is a little more inflated than most 

 specimens that are called lato-marginata, but not more than some are, and I hardly 

 think it distinct. 



