NO. 1205. SYNOPSIS OF THE XAIAI)KSSIVrsO\. 879 



'Margarita ( Unio) granosus LEA. Syn., 1836, p. 17; 1838, p. 16. 

 "Maryaroti ( Unio) granosus LEA, Syn., 1852, p. 23 ; 1870, p. 34. 

 Unio multistriains LEA,' Tr. Am. Phil. Soc., IV, 1831, p. 91, pi. xu, fig. 22; ^Obs. 



I, 1834, p. 101, pi. xu, fig. 22. -HANLEY, Test. Moll., 1842, p. 176; *Biv. 

 Shells, 1843, p. 176, pi. xx, fig. 35. *CATLOW and REEVE, Conch. Norn., 

 1845, p. 61. *CHENU, 111. Conch., 1858, pi. xi, figs. 2, 2a, 2I>. * SOWERBY, 

 Conch. Icon., XVI, 1868, pi. LXXXV, fig. 455. *P.KTEL, Conch. Sam., Ill, 

 1890, p. 160. 



"Margarita ( Unio) multistriatus LEA, Syn., 1836, p. 13; 1838, p. 14. 

 '" Unio muUistriata I/ORBIGNY, Voy. Am. Mer., 1843, p. 607. 



* Unio pfeifferi BUNKER, Zeits. fiir Mai., V, 1848. p. 181.* PFEIFFER, Nov. Conch., 



II, 1866, p. 151, pi. xxxix, figs. 4-9.* PJETEL, Conch. Sam., Ill, 1890, p. 16C. 



* Unio psammactinus PHILIPPI, Conch., Ill, 1848, p. 79, pi. v, fig. 2. *KUSTER, 



Conch. Cab. Unio, 1856, p. 159, pi. XLV, fig. 6. 2 * VON MARTENS, Mai. Bl., 

 XV, 1868, p. 194. 



"Wnio famelicus GOULD, Pr. Bost. Soc. N. Hist., Ill, 1850, p. 294; 3 U. S. Expl. 

 Exp., XII, 1852, p. 432, figs. 544, 544o, 544ft." CONRAD, Pr. Ac. N. gci. Phila., 

 VI, 1853, p. 249. *H. and A. ADAMS, Gen. Rec. 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 granuliferus 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 Eio de Janeiro, Brazil. 



t DIPLODON EFFULGENS Lea. 



* Unio effulgens LEA, Pr. Ac. N. Sci. Phila., VIII, 1856, p. 94; Ml. Ac. N. Sci. Phil., 



III, 1857, p. 303, pi. xxvin, fig. 18 ; *Obs., VI, 1857, p. 23, pi. xx vm, fig. 18. 

 P^TEL, Conch. Sam., Ill, 1890, p. 151. *VON IHERING, Arch, fur Nat., 1893, 

 p. 106. 



x Margaron ( Unio) effulgens LEA, Syn., 1870, p. 35. 



*Unio eurhynchm KUSTEK, Couch. Cab. Unio, 1861, p. 237, pi. i.xxix, fig. 5. 

 "PJKTEL, 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. ellipticus Spix, which I think is an error. 

 The type of multistriatus is more elongated than the figure of I', granosus in the 

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

 species which I have seen. 



2 Credited by Knster to Bronn in litt. 



^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. 



