814 FBOCEEDINGS OF THE NATIONAL MUSEUM. vol.xxii. 



pi. xcv, fig. 515. — * Hanley and Theobald, Couch. Ind., 1876, p. 5, pi. x, fig. 

 6. — Anderson, Yunnuu Exp., 1878, p. 900, pi. lxxx, figs. 8-12.—* P^tel, 

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



* Margaron ( Unto) honneaiidi Lea, Syn., 1852, p. 32 ; 1870, p. 50. 



India. 



tNODULARIA TUMIDULA Lea. 



*" Unio tumiduhts Lea, Pr. Ac. N. Sci. Phi]a.,VIII, 1856, p. 93; "Ohs., VI, 1857, p. 15, 

 pi. XXV, fig. 9; *.J1. Ac.N. Sci. Phila., Ill, 1858, p. 295, pi. xxv, fig. 9.— *YON 

 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^tel, 

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



~ Margaron {Unio) tumidulus Lea, Syn., 1870, p. 39. 



Siam, Cambodia. 



tNODULARIA ASPERULA Lea. 



* Unio inornatus Reeve, Conch. Icon., XVI, 1865, pi. xxix, fig. 147.' 



* Unio asperulus Lea, Pr. Ac. N. Sci. Phila., X, 1866, p. 133; *J1. Ac. N. Sci. Phila., 



VI, 1868, p. 280, pi. XXXVIII, fig. 94; *Obs., XII, 1869, p. 40, pi. xxxviii, 

 fig. 94. 

 " Margaro7i (Unio) aapernlusl^^x, Syn., 1870, p. 31. 



* Marf/aroH ( CiMo) rersMS Lea, Syn., 1870, p. 46. 



Siam; Cambodia. 



NODULARIA ANCEPS Deshayes. 



" Unio anceps Deshayes, Nouv. Arch, de Mus., X, 1874, p. 127, pi. vi, figs. 8-12. — 

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



Cambodia. 



tNODULARIA PUGIO Benson. 



" Unio pug io Benson, Ann. and Mag., X, 1862, p. 193. — *Sowerby, Conch. Icon., 

 XVI, 1868, pi. xcv, fig. 516.— *P^tel, Conch. Sam., Ill, 1890, p. 164.2 



Burma. 



NODULARIA MICHELOTI L. Morlet. 



'^Unio miclieloti L. Mohlet, Jl. de Conch., 1886, pp. 77,291, pi. xiii, figs. 6, 6a. — 

 *P.etel, Conch. Sam., Ill, 1890, p. 159. 



Tonkin. 



NODULARIA FLUCTIGER Lea. 



* Z7wio^»c%erLEA, 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, 

 Couch. Icon., XVI, 1866, pi. XLii, fig. 299. 

 * Margarvn ( Unio) flnctiger Lea, Syn., 1870, p. 32. 



Southeast Asia, no doubt. 



' I believe that Reeve's U. inornatus ^ Lea's U. asperwlus. 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. houvieri or whether it is only a manuscript name. 



