NO. 1205. SYNOPSIS OF THE N '''A^. is— SIMPSON. 879 



* Margarita ( Unio) granosus \, Syn., 1836, p. 17; 1838, p. 16. 

 *Margnron ( Unio) granosus Lea, Syn., 1852, p. 23; 1870, p. 34. 



- Unio muUistriatus Lea,' Tr. Am. Phil. Soc, IV, 1831, p. 91, pi. xii, fig. 22; ^Obs. 



I, 1834, p. 101, pi. XII, fig. 22.— *Hanley, Test. Moll., 1842, p. 176; "Biv. 

 Shells, 1843, p. 176, pi. xx, fig. 35.— *Catlow and Eeeve, Conch. Norn., 

 1845, p. 61.— *Chenu, 111. Conch., 1858, pi. xi, figs. 2, 2a, 2?*.- *Sowerby, 

 Conch. Icon., XVI, 1868, pi. lxxxv, fig. 455.— *PyETEL, Conch. Sam., Ill, 

 1890, p. 160. 



* Margarita ( Unio) nmltisinatus Lea, Syn., 1836, p. 13; 1838, -p. 14. 

 " Unio muJtistriata d'Orbigny, Voy. Am. Mer., 1843, p. 607. 



* Unio pfeAfferi Dunker, Zeits. fiir Mai., V, 1848. p. 181. — "Pfeiffer, Nov. Couch., 



II, 1866, p. 151, pi. XXXIX, figs. 4-9.—* P^tel, Conch. Sam., Ill, 1890, p. 163. 

 *Unio psammactinus Phii.ippi, Conch., Ill, 1848, p. 79, pi. v, fig. 2. — *Kuster, 



. Conch. Cab. Unio, 1856, p. 159, pi. xlv, fig. 6.^ — *a^on Martens, Mai. Bl., 

 XV, 1868, p. 194. 



*\Unio famelicus Gould, Pr. Bost. Soc. N. Hist., Ill, 1850, p. 294 ;3 U. S. Expl. 

 Exp., XII, 1852, p. 432, figs. 544, 544a, 544&.— ^ Conrad, Pr. Ac. N. Sci. Phila., 

 VI, 1853, p. 249.— *H. and A. Adams, Gen. Eec. Moll., II, 1857, p. 493.— 

 * Gould, Otia. Conch., 1862, p. 88.—" Sowerby, Conch. Icon., XVI, 1868, pi. 

 Lxxv, fig. 391.— *B. H. Wright, Check List, 1888. 



*Margaron ( Unio) famelicus Lea, Syn., 1852, p. 34 ; 1870, p. 54. 



* Unio niloticus Sowerby, Conch. Icon., XVI, 1868, pi. lxxiii, fig. 374. 



Brazil; Guiana. 



DIPLODON GRANULIFERUS Dunker. 



""Unio granuUferus Dunker, Zeits. fiir Mai., V, 1848, p. 182. — *Pfeiffer, Nov. 

 Conch., II, 1866, p. 150, pi. xxxix, figs. 1-3. 



* Unio granulifer P.etel, Conch. Sam., Ill, 1890, p. 154. 



Province of Kio de Janeiro, Brazil. 



t DIPLODON EFFULGENS Lea. . 



*Unio effulgens Lea, Pr. Ac. N. Sci. Phila., VIII, 1856, p. 94; ^Jl. Ac. N. Sci. Phil., 



III, 1857, p. 303, pi. xxviii, fig. 18; ^'Obs., VI, 1857, p. 23, pi. xxviii, fig. 18.— 

 Pjetel, Conch. Sam., Ill, 1890, p. 151.— *voN Ihering, Arch, fiir Nat., 1893, 

 p. 106. 



''Margaron {Unio) effulgens Lea, Syn., 1870, p. 35. 



*I7mo eurhynchus Kusteh, Conch. Cab. Unio, 1861, p. 237, pi. lxxix, fig. 5. — 

 *P.etel, Conch. Sam., Ill, 1890, p. 152. 



Brazil. 



• The type presented by Mrs. Mawe is not in the Lea collection, but there are 

 fairly typical examples in it. The species varies much in form and sculpture, some 

 specimens being smooth, and all variations occur to those quite granose throughout. 

 Lea places his species in the synonymy U. ellipticns Spix, which I think is an error. 

 The type of muUistriatus is more elongated than the figure of U. granosus in the 

 Encyclopedie Methodique, but agrees very well with undoubted specimens of this 

 species which I have seen. 



'^Credited by Kuster to Bronn in Hit. 



^Credited by Gould to Walla Walla, Oregon. It is a young, rather smooth granosus 

 I am sure, and the habitat given is wrong. The type is in the U. S. National Museum. 



