296 Records of the Indian Museum. [Mor Wb, 
54. Pseudodon (Pseudodon) inoscularis (Gould), Simpson, 
Syn. Naiades, Proc. US. Nat. Mus., XXII, p 837,—A nodon inoscu- 
laris, Gould, Proc. Bost Soc. Nat. Hist., I, 1844, p. 160; Hanley 
and Theobald, Conch. Ind., p.5, pl. ix, fig. 2,=-Margaron (Mono- 
condylaea) inescularis, Lea, Syn., 1870, p. 73.—=Margariiana tnos- 
cularis, Paetel, Conch. Sam., r&§go, III, p. 173. 
Jenasserim River, Reg. No. +957; Tenasserim, Reg. No. 
4696 
1 
55. Pseudodon (Pseudodon) cumingii (Lea), Conrad, Am. 
Ji. Conch , I, 1065, p 233,==Anondonta cumingit, Lea, Proc. Zool. 
Soc., London, 1850, p. 199; Anu. Mag. Nat. Hist., VIII, 1851, 
p. 495; Musgrave in Hanley’s Phot Conch., 1863, pl i, fig. 6,—= 
Margaron (M onocondylaea) cumingit, Lea, Syn., 1-52, p. 50, 1870, 
p. 73,—=Monocondylaea cumingit, Lea, Jl. Ac. Nat Sci., Philad., 
LYV../ 1860.) {p. 235, ply xxxitl, fe: 14; Obs. Vil, 1800 aa 
pl. xxxiii, fig. 114,—Ascdon cumingit, Reeve, Conch. Icon,, 
XVII, 1870, pl. xxxi, fig. 122,=-Microtondylaca cumingtt, 
@lessin, Conch: Cab, Anory 21876; pi 250)0 pli xxx eer 
4,—Pseudodus cumingii, de Morgan, Bull. Soc. Zool. de Fr., X, 
1885, p. 422 
Cambodia, Reg. Nos. +29 and +951; Philippines (W. Theo- 
bald), Reg. No. 82+. 
56. Pseudodon (Pseudodon) tumidus (Morelet), Simpson, 
Syn. Naiades, Proc. U.S. Nat Mus., XXII, p 837,—Monocondylus 
tumidus, Morelet, Jl. de, Conch., XIV, 1866, p. 62; Mabille, Rev. 
ZOO ONT, 18727 p..5 8 pilev, Mes TO ge 
Upper Cambodia, Reg. No. +995, 
57. Pseudodon (Pseudodon) salwenianus (Gould), Con- 
rad, Am. Jl. Conch., I, 1865, p. 233,=Anedon salwenianus, Gould, 
Proc: Bost. Soc. Nat. Hist., I, 1844, p. 160,—Anodonta salwenana, 
Gould, Otia Conch., 1862, p. 193,—Monocondylaea salwemana, 
Paetel, Conch:: Sam’, III, 1800, p. 174;=Unto salwenrana, 
Sowerby, Conch. Icon., XVI, 1868, pl. xciv, fig. 513,—Margaron 
(Monocondylaca) salweniana, Lea, Syn., 1870, p. 72,—Pseudodon 
salwcnianum, Hanley and Theobald, Conch. Ind.,-p. 5,:pl. ix, 
fig. 4. 
Tenasserim River, Reg. Nos. +877, +988 and 4897; Burma, Reg. 
Nos. 5942 and 590. 
58. Pseudodon (Pseudodon) cambodjensis (Petit), Conrad, 
Am. Jl. Conch., I, 1865, p. 233,=Monocondylaea cambodjensis, 
Petit, Jl. de Conch., VI, 1865, p. 122,—\/argaron (Monocondylaea) 
cambodjensis, Lea, Syn., 1870, p. 72. 
Cambodia, Battambang, Reg. No. 125; Cochin China, Reg. 
No, 2950, 
59. Pseudodon(Pseudodon) ava (Theobald), Simpson, Syn., 
Naijades, Proc. U.S. Nat. Mus., XXII, p. 839,—Monocondylaea 
ava. Theobald, Jl. As. Soc. Beng., XLII, 1873, pt. II, p. 209, pl. 
KVil, usa Ls. 
Mandalay (J. Anderson), Reg. No, 4987. 
