278 182 



Siliqua minima, Gmel. 



Miniitissima legiiminiim, Chemnitz, Conchyl. Cabin., VI, 1782, p. 48, pi. 5, fig. 31. 



Solen minimus, Gmelin, Syst. Nat., ed. 13, 1790, p. 3227, No. 14. 



Aulas — — DuNKEH, Index molluscor. maiv Japon., 1882, p. 175. 



Machaera minima, — Cle.ssin in Mautini u. Chemnitz, Conchyl. Cabin., XI, 3 Abtli., p. 68, pi. 5, 



figs. 1—2. 

 Siliqua — — E.V.Martens, Süss- u. Brackwasser-Moll. d. Ind. Archip., p. 262, No. 3. 



Machæra — — Hidalgo, Fauna malacol. de I. isl. Filipinas, II, p. 25. 

 Solen pellncidus, Spengler, Skrivter af Naturhistor. Selsk., III, 2 H., 1794, p. 97, No. 13. 



— albida. Adams & Reeve, Zoology of the voyage of H. M. S. "Samarang," 1848, p. 84, pi. 23, fig. 15. 

 Cultellus albidus, Dunker, Sowerby in Reeve, Conchol. icon., XIX, 1874, Cultellus, Sp. 16. 

 Machaera albida, — Clessin in Martini u. Chemnitz, Conchyl. Cabin., XI, 3 Abth., p. 65, No. 13, 



pl. 18, fig. 3. 



The sound of Koh Chang, 3—5 fathoms (fragment). 



Distribution:— Malacca, Tranquebar, Bombay. — Philippines, China, Korea, 

 Japan. 



Although I am almost convinced of the correctness of the determination, yet, 

 on the basis of the small fragment of a young individual which is at hand, it 

 cannot be settled with complete certainty, if the specimen does not possibly belong 

 to the nearly allied species Sil. Winteriana, Dunk. 



Novaculina Siamensis, Mori. 



Novaculina Siamensis, L. Morlet, Journ. de Conchyl., vol. 37, 1889, p. 198, pl. 9, fig. 4. 



Solenocurliis (Novaculina) Siamensis. L. Morlet. P. Fischer, Catalogue d. Mollusques de I'lndo-Chine, 



p. 242. 

 Noi'aciilina Siamensis, L. Morlet, Mission Pavie Indo Chine, 1879-1895, 111, 1904, p. 385, pl. 22, fig. 7. 



"Marais de Chanlakam" (Siam, Pavie). 



The Danish Expedition to Siam collected no specimens of this species. 



Solecurtus (Macha) rhombus, Spengl. 



Solen strigilatas var., Chemnitz, Conchyl. Cabin , VI, 1782, pp, 60—62, pl. 6, fig. 44. 



— Rhombus, .Spengler, Skrivter af Naturhistorie Selskabet, III Bd., 2 H., 1794, p. 1Ü2, Nr. 17. 

 Solecurtus rhombus, Spengler, E. v. Martens, Süss- u. Brackwasser-Moll. d. Ind. Archip., p. 257, No. 2. 

 Macha Quoyi. v. Martens, E. v. Martens u. B. Langkavel, Donuin Bismarckianum, 1871, p. 61, pl. 4, fig. 6 



(non S. Quoyi, Deshayes = S. albas, Quoy & Gaim.). 



North of Koh Kahdat, 4—5 fathoms, coarse sand ('/a). 



Long. 35 mm., alt. 18 mm. 



Distribution: — Nicobars, Moluccas, Viti Isis., Kingsmill Isis. 



The figure in "Donum Bismarckianum" is not quite good; the outline both 

 in Spengler's original specimen and in the specimen from Koh Kahdat is more 

 squarish-oval, the anterior and posterior margins being almost rectilinear, obtusely 

 truncated, and forming rounded angles with the dorsal and ventral margins. 



