NO. 1205. SYNOPSIS OF THE NAIADES— SIMPSON. 919 



*^Margarita(Anodonta) memiranacea'LEA, Syn., 1836, p. 22; 1838, p. 23. 

 *Margaron (Anodonta) memhran acea Lea, Syn., 1852, p. 34; 1870, p. 55. 



* Unio memhranaceus Hanley, Test. Moll., 1842, p. 202. — *H. and A. Adams Gen. 



Kec. Moll., II, 1857, p. 492.—* P^etel, Conch. Sam., Ill, 1890, p. 159. 



* Unio suMrapesius Philippi, Zeits. flir Mai., IV, 1847, p. 96; "Abbild., Ill, 1848, 



p. 80, pi. V, fig. 3,—* KusTER, Conch. Cab. Unio, 1862, p. 283, pi. xcv, fig. 4. 



Rio de la Plata. 



tGLABARIS IHERINGI Clessin. 



* Anodonta iheringi Clessin, Mai. BL, V, 1882, p. 191, pi. iv, fig. 5.— *Pjetel, 



Conch. Sam., Ill, 1890, p. 180.' 



(Group of Glabaris crispatus.) 



Shell elliptical obovate, slightly produced at the posterior base, and 

 straight or very feebly incurved in front of it; epidermis fuscous or 

 tawny, cloth-like behind, somewhat rayed by more or less incised lines 

 in front, where it is wrinkled like dried paint, the wrinkles often being 

 looped; nacre lurid, bluish, somewhat iridescent. 



Animal unknown. 



tGLABARIS CRISPATUS Bruguiere. 



*AnodonUies crispata Bruguiere, Jl. de Hist. Nat., 1, 1792, p. 131. 



* Anodonta crispata Lamarck, An. sans Vert., VI, 1819, p. 86." — * Lea, Obs., 1, 18"4, 



p. 205.— * HANLEY,Te8t. Moll., 1842, p. 217 ; * Biv. Shells, 1843, p. 217.—^ H. and 

 A. Adams, Gen. Eec. Moll., II, 1857, p. 503.—* P.etel, Conch. Sam., Ill, 1890, p. 

 178. 



* Margarita {Anodonta) crispata Lea, Syn., 1836, p. 48; 1838, p. 29. 

 *Anodon crispata Catlow and Eeeve, Conch. Nom., 1845, p. 66. 

 *Margaron (Anodonta) crispata Lea, Syn., 1852, p. 47; 1870, p. 75. 



* f Anodonta crispa Lamarck, Enc Meth., II, 1827, p. 147, pi. cciii, fig. 3. 



* f Anodonta puhei-ula Gould, U. S. Expl. Ex., Xll, 1852, p. 434, figs. 548, 548a, 



5486.3 

 *Anodon reticulatus Sowerby, Conch. Icon., XVII, 1867, pi. x, fig. 27. 

 *Margaron {Anodonta) reticulata Lea, Syn., 1870, p. 80. 



* Anodonta reticulata P/ETEL, Conch. Sam., Ill, 1890, p. 184. 



Widely distributed in tropical South America. 



GLABARIS PHILIPPIANUS Simpson.^ 



* Anodonta subsinuata Philippi, Mai. Bl., XVI, 1869, p. 41. — * Pfeiffer, Nov. 



Conch., Ill, 1869, p. 487, pi. cv, figs. 7, 8.—* PiETEL, Conch. Sam., Ill, 1890, 

 p. 185. 



Ucayali River, Peru. 



' This species combines characters of the Patagonicus and Tenehrieosus groups. 



2 Lamarck refers to Encyclopaedie Methodique, pi. cciii, figs. 3, 3a, 36. 



3 According to Lea's note in pencil on the margin of this description the species= 

 crispata. I think he is right. 



^The name subsinuata, applied to this by Philippi, will have to be placed in the 

 synonymy, as Sowerby used it previously for a Glabaris which he placed in Anodonta, 



