NO. 1205. SYNOPSIS OF THE NAIADES SIMPSON. 929 



* Anodon amethysttts SOWERBV, Conch. Icon., XVII, 1869, pi. xxiv, figs. 95, 95a, 95&. 1 



* Anodonta amethysta CLESSIN, Conch. Cab. Ano., 1875. p. 180, pi. LX, fig. 3. 



* Anodon dactylus SOWERBY, Conch. Icon., XVII, 1867, pi. xix, fig. 75. 



* Anodonta dactylus CLESSIN, Conch. Cab., 1875, p. 175, pi. LVII, fig. 3. PJETEL, 



Conch. Sam., Ill, 1890, p. 178. 

 Margaron (Anodonta) dactylus LEA, Syn., 1870, p. 80. 



GLABARIS LINGULATUS Hupe. 



* Anodonta lingulata HUPE, Moll. Nouv., Ill, 1857, p. 89. 'CLESSIN, Conch. Cab. 



Ano., 1875, p. 215, pi. LXVI, fig. 3. *P.ETEL, Couch. Sam., Ill, 1890, p. 181. 



* Anodon lingulata SOWERBY, Conch. Icon., XVII, 1869, pi. xxm, fig. 90. 

 * Margaron (Anodonta) lingulata LEA, Syn., 1870, p. 79. 



* Glabaris lingulata VON IHERING, Arch, fur Nat., 1893, p. 119. 



Paraguay. 



t GLABARIS MORTONIANUS Lea. 



* AnodontamortonianaL,EA.,Ti: Am. Phil. Soc.,V,1834, p. 80,pl. xm, fig. 37; *Obs., I, 



1834, p. 192, pi. xm, fig. 37. *HANLEY, Test. Moll., 1842, p. 219. 'H. and A. 

 ADAMS, Gen. Rec. Moll., II, 1857, p. 502. * CLESSIN, Conch. Cab. Ano., 1874, 

 p. 151, pi. XLVIII, figs. 5, 6. *P.ETEL, Conch. Sam., Ill, 1890, p. 182. 



* Margarita (Anodonta) mortoniana LEA, Syn., 1838, p. 30. 



* Anodon mortoniana CATLOW and REEVE, Conch. Nom., 1845, p. 67. 



* Margaron (Anodonta) mortoniana LEA, Syn., 1852, p. 150; 1800, p. 80. 



Parana Biver, South America. 



GLABARIS LONGINUS Spix. 



* Anodon longinus SPIX, Test. Fluv. Bras, 1827, p. 29, pi. xxn, fig 1. 



* Mycetopus longinus CLESSIN, Conch. Cab. Ano., 1875, p. 202. * FISCHER, Jl. de 



Conch., XXXVIII, 1890, p. 8. 



* Iridina longina LEA, Syn., 1836, p. 57. 



* Anodonta longina KUSTER, Conch. Cab. Ano., 1853, p. 7, pi. 11, fig. 1. * P.ETKL, 



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



Brazil; Amazon. 



GLABARIS LEOTANDI Guppy.* 



* Anodonta leotandi GUPPY, Ann, and Mag., XIV," 1864, p. 243;* XVII, 1866, p. 54; 

 Pr. Sci. Assn. Trinidad, 1872, p. ; Ml. Conch., VII, 1894, p. 229. 



* Anodonta leotandi B. H. WRIGHT, Check List, 1888. 



* Margaron (Anodonta) leotandi LEA, Syu., 1870, p. 83. 



Trinidad Island, West Indies. 



Section STYGANODON von Martens, 1900. 

 (Type, Anodonta tenebricosa Lea.) 



Shell subrhomboid, with a thick, dark, rather rough, sombre-colored 

 epidermis, which is sometimes faintly rayed, nacre lurid, shaded green; 

 animal unknown. 



(Group of Glabaris tenebricosus.) 



Shell elongate, slightly inflated; base incurved. 



1 Changed to wheatleyi Lea, by Sowerby in index. 



-I am not certain where this groups, as I have never seen the shell, and it has not 

 been figured. 



Proc. N". M. vol. xxii 59 



