838 PROCEEDINGS OF TEE NATIONAL MUSEUM. vol.xxii. 



PSEUDODON THOMSONI Morlet. 



" Pseiidodon thomsoni Morlet, Jl. de Conch., XXXII, 1884, p. 401, pi. xiii, figs. 



2, 2a. 

 ■* Margaritana thomsoni P.etel, Conch. Sam., Ill, 1890, p. 174. 



Cambodia. 



t PSEUDODON SALWENIANUS Gould. 



* Anodon salweniana Gould, Pr. Bost. Soc. N. Hist., I, 1844, p. 160. 



* Anodonta salweniana GouLD, Otia Conch., 1862, p. 193. 



* Pseudodoii salweniana Conrad, Am. Jl. Couch., I, 1865, p. 233. 



^ Monocondijkra salweniana P.etel, Conch. Sam., Ill, 1890, p. 174. 



* Unio salwenianus Sowerby, Conch. Icon., XVI., 1868, pi. xciv, fig. 513. 



* Mar gar on {Monocondylaa) salweniana Lea, Syn., 1870, p. 72. 



* Psendodon salwenianum Hanley and Theobald, Conch. Ind., 1876, p. 5, pi. ix, 



fig. 4. 



* Unio sahvenianus P.etel, Conch. Sam., Ill, 1890, p. 166. 



River Salweu, British Burma. 



t PSEUDODON MORELETI Crosse and Fischer. 



* Monocondgkea tumida Deshayes and Jullien, Nouv. Arch, de Mus., X, 1874, 



p. 117, pi. V, figs. 1-3.1 

 "Pseitdodon moreleU Crosse and Fischer, Jl. de Conch., XXV, 1876, p. 330. 



Cambodia. 



I PSEUDODON CAMBODJENSIS Petit. 



* Monocondylcea camhodjensis Petit, Jl. de Couch., VI, 1865, p. 122. — * P^etel, 

 Conch. Sam., Ill, 1890, p. 174. 



* Mar gar on (Monocondylcea) camhodjensis Lea, Syn., 1870, p. 72. 



* Pseudodon camhodjensis Conrad, Am. Jl. Conch., 1, 1865, p. 233. — *Morlet, J. de 



Couch., XXXli, 1866, p. 266. 



Cambodia; Toukiii. 



PSEUDODON CHAPERI de Morgan. 



"" Pseudodus cliaperi de Morgan, Bull. Soc. Zool. de Fr., X, 1885, p. 423, pi. ix, 

 figs. 1,2. 



Cambodia; Siam. 



The following species is unfigTired : 



PSEUDODON NICOBARICUS Morch. 



Alasmodonta (subg. ?) nicobarica Morch, Jl. de Conch., XX, 1872, p. 327."^ 



Nicobar Islands. 



' This fine, large shell which Deshayes and Jullien supposed to he P. tumidus of 

 Morelet is quite a difierent thing, and Crosse and Fischer have given it a new name. 



-Murch describes the above under the name Alasmodonta (subgenus?) nicoharica, 

 and credits it to Fabricius. The Mytilns nicoharicus of the latter was only a nomen 

 nudum. Morch says his species is close to Anodonta zolUngeri. 



