NO. 1205. SYNOPSIS OF THE NAIADES SIMPSON. 919 



* Margarita (Anodonta) membranacea LEA, Syn., 1836, p. 22; 1838, p. 23. 

 *Margaron (Anodonta) membranacea LEA, Syu., 1852, p. 34; 1870, p. 55. 



* Unio membranaceus HANLEY, Test. Moll., 1842, p. 202. *H. and A. ADAMS, Gen. 



Rec. Moll., II, 1857, p. 492. * PJETEL, Conch. Sam., Ill, 1890, p. 159. 



* Unio subtrapezius PIULIPPI, Zeits. fiir Mai., IV, 1847, p. 96; "Abbild., Ill, 1848, 



p. 80, pi. v, fig. 3.* KUSTER, Conch. Cab. Uuio, 1862, p. 283, pi. xcv, fig. 4. 



Rio de la Plata. 



fGLABARIS IHERINGI Clessin. 



* Anodonta iheringi CLESSIN, Mai. Bl., V, 1882, p. 191, pi. iv, fig. 5. *P^ETEL, 

 Conch. Sam., Ill, 1890, p. ISO. 1 



(Group of Glabaris crispatus.) 



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

 straight or very feebly iucurved 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. 



t GLABARIS CRISPATUS Bruguiere. 



*Anodontilea crispata BRUGUIERE, Jl. de Hist. Nat., 1, 1792, p. 131. 



* Anodonta crispata LAMARCK, An. saus Vert., VI, 1819, p. 86. 2 * LEA, Obs., 1, 1804, 

 p. 205.* HANLEY, Test. Moll., 1842, p. 217 ; * Biv. Shells, 1843, p. 217.' H. and 

 A. ADAMS, Gen. Rec. 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 REEVE, Conch. Norn., 1845, p. 66. 



*Margaron (Anodonta) crispata LEA, Syu., 1852, p. 47; 1870, p. 75. 



* f Anodonta crispa LAMARCK, Enc Meth., II, 1827, p. 147, pi. ccm, fig. 3. 



* \Anodonta puberula GOULD, U. S. Expl. Ex., XII, 1852, p. 434, figs. 548, 548o, 



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. 4 



* Anodonta subsinuata PHILIPPI, Mai. Bl., XVI, 1869, p. 41. *PFEIFFER, Nov. 



Conch., Ill, 1869, p. 487, pi. cv, figs. 7, 8.* P.ETEL, Couch. Sam., Ill, 1890, 

 p. 185. 



Ucayali River, Peru. 



1 This species combines characters of the Patagonicus and Tenebricoaus groups. 



2 Lamarck refers to Encyclopaedic Mdthodique, pi. ccm, tigs. 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. 



4 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. 



