297 
Vol. 4, 1891, p. 218. — v. Martens, Süss- u. Brackwasser Moll. Ind. 
Arch. (in M. Weber, Zool. Ergebn. Reise Niederl. Ossindien, Vol. 3), 1897, 
p. 308. — H. Fischer & Dautzenberg, Mission Pavie Indochine, Vol. 3, 
1904, p. 435. 
Margarita (Anodonta) exilis Lea, Synopsis, 1838, p. 32. 
Anodon exilis Catlow & Reeve, Conch. Nomenclator, 1845, p. 65. 
Margaron (Anodonta) exilis Lea, Synopsis, 1852, p. 51; 1870, p. 82. 
Pilsbryoconcha exilis Simpson, Synopsis, 1900, p. 587. — Preston, Records Indian 
Mus. Caleutta, Vol. 7, 1912, p. 282. 
Anodonta polita Mousson, Land- u. Süssw. Mollusken v. Java, 1849, p. 98, Taf. 19, 
fig. 2—3; Zeitschr. f. Malakozoologie, Vol. 7, 1851, p.46. — H.& A. 
Adams, Genera Recent Mollusca, Vol, 2, 1857, p. 504. — Paetel, Kata- 
log; Conch. Samml., Vol. 3, 1900, p. 183. 
Meleason (Anodonta) polita Ds Synopsis, 1852, p. 53. 
Anodon politus Sowerby in Reeve, Conch. Iconiea, Vol. 17, Taf. 12, fig. 36. 
Anodonta (Lamproscapha) schomburgki v. Martens, Proc. Zool. Soc. London, 1860, 
p- 15. — Paetel, Katalog Conch. Samml., Vol. 3, 1890, p. 184. — 
P. Fischer, Bull. soc. hist. nat. Autun, Vol. 4, 1891, p. 219. — H, Fi- 
scher & Dautzenberg, Mission Pavie Indochine, Vol. 3, 1904, p. 436. 
Pilsbryoconcha schomburgki Simpson, Synopsis, 1900, p. 588. 
Monocondylaea compressa Lea, Proc. Acad. Nat. Sciences, Philadelphia, Vol. 7, 1863, 
p. 190; Journ. Acad. Nat. Sciences, Philadelphia, Vol. 6, 1866, p. 30 
Taf. 11, fig. 29; Observations, Vol. 11, 1367, p. 34, Taf. 11, Fig. 29. — 
Clessin, in Martini-Chemnitz, Ill. Conch. Cab., Genus Anodonta, p. 258, 
Taf. 80, fig. 3—4. 
Pseudodon compressa Conrad, American Journ. of Conch, Vol. 1, 1865, p. 233. 
Pseudodon compressus P. Fischer, Bull. soc. hist. nat. Autun, Vol. 4, 1891, p. 220. 
Margaron (Monocondylaea) compressa Lea, Synopsis, 1870, p. 73. 
-Anodon javana Sowerby in Reeve, Conch. Iconiea, Vol. 17, 1867, Taf. 11, Fig. 33. 
Anodonta sempervivens Deshayes & Jullien, Nouv. Archives Mus. hist. Nat. Paris, 
Vol. 10, 1874, p. 120, Taf. 5, fig. 4-5. — Paetel, Katalog Conch. 
Samml., Vol. 3, 1890, p. 184. — P. Fischer, Bull. soc. hist. nat. Autun, 
Vol. 4, 1891, p. 218. — H. Fischer & Dautzenberg, Mission Pavie 
Indochine, Vol. 3, 1904, p. 436. 
Nouvelle esp&ce d’Anodonte, Deshayes, Journ. de Conch., Vol. 23, 1875, p. 83. 
Testa lata, valde compressa, inaequilaterali ; valvulis tenuibus ; natibus vin prominulis ; 
epidermide glabra; margarita coerulea et iridescente. 
Shell wide, very much compressed, slender, rounded before and angular behind, in- 
equilateral; dorsal and basal margin nearly parallel; substance of the shell very thin; beaks 
scarcely prominent; ligament long and thin; epidermis smooth, brown, apparently without 
rays; anterior cicatrices distinct; posterior cicatrices confluent; dorsal cicatrices posterior to 
IX. 2. I. 23. V. 1914, 38 
