814 PROCEEDINGS OF THE NATIONAL MUSEUM. 



pi. xcv, fig. 515. * HAXLEY and THEOBALD, Couch. Ind., 1876, p. 5, pi. x, fig. 

 6. ANDERSON, Yunnuu Exp., 1878, p. 900, pi. LXXX, figs. 8-12. * PJJTKL, 

 Conch. Sam., Ill, 1890, p. 146. 



* Margaron ( Unio) bonneaudi LKA, Syn., 1852, p. 32; 1870, p. 50. 



India. 



tNODULARIA TUMIDULA Lea. 



* Unio tumidulHS LEA, Pr. Ac. N. Sci. Phila., VIII, 1856, p. 93; *Obs., VI, 1857, p. 15, 



pi. xxv", fig. 9; *J1. Ac. N. Sci. Phila., Ill, 1858, p. 295, pi. xxv, fig. 9. *VON 

 MARTENS, Pr. Zool. Soc. Lond., 1860, p. 15. * SOWERBY, Conch. Icon., XVI, 

 1868, pi. LXXXIX, fig. 482. *MORELET, Ser. Conch.,IV, 1875, p. 351.* P.ETEL, 

 Conch. Sam., Ill, 1890, p. 170. 

 "Margaron (Unio) tumidulns LEA, Syn., 1870, p. 39. 



Siam, Cambodia. 



tNODULARIA ASPERULA Lea. 



* I'nio inornatus REEVE, Conch. Icon., XVI, 1865, pi. xxix, fig. 147.' 



Vnio asperuhis LEA, Pr. Ac. N. Sci. Phila., X, 1866, p. 133; Ml. Ac. N. Sci. Phila., 

 VI, 1868, p. 280, pi. xxxvin, fig. 94; *Obs., XII, 1869, p. 40, pi. xxxvni, 

 fig. 94. 



*" Margaron ( Unio) asperulus LEA, Syn., 1870, p. 31. 



* Margaron (Unio) versus LEA, Syn., 1870, p. 46. 



Siain; Cambodia. 



NODULARIA ANCEPS Deshayes. 



* Unio anceps DESHAYES, Nouv. Arch, de Mus., X, 1874, p. 127, pi. vi, figs. 8-12. 



* P^TEL, Conch. Sam., Ill, 1890, p. 144. 



Cambodia. 



tNODULARIA PUGIO Benson. 



* Unio pugio BENSON, Ann. and Mag., X, 1862, p. 193. * SOWERBY, Conch. Icon., 



XVI, 1868, pi. xcv, fig. 516. *P.ETEL, Conch. Sam., Ill, 1890, p. 164. 2 



Burma. 



NODULARIA MICHELOTI L. Morlet. 



* Unio micheloli L. MOKLET, Jl. de Conch., 1886, pp. 77, 291, pi. xm, figs. 6, 6a. 



* P^TEL, Conch. Sam., Ill, 1890, p. 159. 



Tonkin. 



NODULARIA FLUCTIGER Lea. 



* Unio fltictiger~LEA, Pr. Ac. N. Sci. Phila., Ill, 1859, p. 152; *J1. Ac. N. Sci. Phila., 



IV, 1860, p. 250, pi. xxxix, fig. 130 ; *Obs., VII, 1860, p. 68, pi. xxxix, fig. 130. 

 *KUSTER, Conch. Cab. Unio, 1861, p. 237, pi. LXXX, fig. 1. * SOWERBY, 

 Conch. Icon., XVI, 1866, pi. XLII, fig. 299. 



* Maryarvn ( Unio) fluctiger LEA, Syn., 1870, p. 32. 



Southeast Asia, no doubt. 



1 1 believe that Reeve's U. inornatus = Lea's U. asperulus. As Lea had used the 

 name inornatus previous to Reeve for a Unio, he changed the name of the latter to 

 U. versus. 



2 A shell labeled Unio bouvieri Nevill in the collection of Frederick Stearns in 

 Detroit is, I believe, the same as U. pugio Benson. I do not know if Nevill ever 

 described U. bouvieri or whether it is only a manuscript name. 



