NO. 1205. SYNOPSIS OF THE NAIADES— SIMPSON. 917 



*Anodon trapezeus Spix, Test. Fluv. Bras., 1827, p. 28, pi. xx, fig. 1. 

 *Anodonia trapezeum d'Orbigny, Voy. Am. Mer., 1843, pp. 6, 19. 

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



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



* f Anudonta lato-marginata Lea, Tr. Am. Phil. Soc, V, 1834, p. 76, pi. xii, fig. 34; 



* Obs., 1, 1834, p. 188, pi. xii, 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, tigs. 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. il, fig. 3. 



* Anodon lati-marginata Catlow and Eeeve, Conch. Nom., 1845, p. 67. 



* Anodonta tati-marginata Strobel, Mat. Mai., Pt. 1, 1874, p. 67. — " PtETel, 



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



* Anodonta memhranacea 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. 



■" ^ f Anodonta urugiiayensis Lea,i Pr. Ac. N. Sci.Phila., IV, 1860, p. 92; * JI. Ac. jN". 

 Sci. PhiIa.,V, 1863, p. 393, pL xlviii, fig. 302; * Obs., X, 1863, p. 29, pi. xlviii, 

 fig. 302.—* Clessin, Conch. Cab., 1874, p. 114, pi. xxxviii, figs. 1, 2.— 

 "Sowerby, Conch. Icon., XVII, 1870, pi. xxx, fig. 121, 



* Margaron {Anodonta) urugiiayensis Lea, Syn., 1870, p. 83. 



* ColumMa uruguayensis P-^etel, Conch. Sam., Ill, 1890, p. 188. 



* Anodonta sinuosa Clessin, Conch. Cab. Ano., 1873, p. 90, pi. xxii, figs. 1, 2. 



* Anodonta serpentina Clessin, Conch. Cab. Ano., 1876, p. 223, pi. lxxv, figs. 2, 3. — 



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



GLABARIS PATAGONICUS var. FELIX Pilsbry. 



* Glabaris lato-marginatus Li^EA, 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 o-assus Swainson, Zool. 111., 1st ser.. Ill, 1823, pi. CLXVii. 

 "Margarita {Anodonta) erassa Lea, Syn., 1836, p. 23; 1838, p. 32. 



* Anodonta erassa Hanley, Test. Moll., 1842, p. 222; *Biv. Shells, 1843, p. 222.— 



*II. and A. Adams, Gen. Eec. Moll., II, 1857, p. 504. — * Pjetel, Conch. 



Sam., Ill, 1890, p. 178. 

 "" Anodon erassa Catlow and Reeve, Conch. Nom., 1845, p. 66. 

 ''Margaron {Anodonta) erassa Lea, Syn., 1852, p. 52; 1870, p. 83. 



Eio de la Plata. 



t GLABARIS WYMANII Lea. 



' Anodonta loymanii 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. xxxii, figs. 1, 2.— 



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



' 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, bu.t not more than some are, and I hardly 

 think it distinct. 



