166 70 



Ojpiicanlia roslrala, Lamauck, Mist. nat. d. aiiim. s. verl., VI, Itili), p. 2«, Nu. li. éd. 2, VI, ISSö, i>.4'A'.). 



No, 3. 

 — — Heeve, Conchol. icon., I, 1843, Cjipricartlia, Sp. 3. 



Trapezium roslralnm, — Ddnkeh, Index moHuscor. mar. .lapon., 1882, p. 210. 



Koh Kahdal, 1 fathom, sand (2). Koh Mak, sandy coast ('/a). 



Long. 11 — 26 mm. 



D ist r ihn ti on: — Andamans, Madagascar, Manritius, He S' Marie, Natal, Durban. 

 — Pliilippines, Japan, Aru Isl., Torres Str., Port Denison, Kangaroo Isl. (New Hoi- 

 land), New Caledonia, Boston Isl., Viti Isl. 



All the specimens from the Gulf of Siam belong to the form rostrata, Lam. 



Trapezium vellicatum, Reeve. 



Cupricaidia vcllicata, Heeve, Proc. Zool. Soc. London, 184.'i, p. 195. 



— — — Concliol. icon., I, 1843, Cypricanlia, Sp. 7. 



Trapezium vellicatum, — Dunkeh, Inde.x moll. mar. Japon., 1882, p. 210. 



— — — var., Edg. Smith in Zoolog. Collect, of H. M. S. "Alert," Lond. 1884, p. 'J7, 



No. 21. 

 Libitina vellicata, — Melvill & Syke.s, Proc. Malacol. Soc. London, 111, 1898, p. 48. 



Cijpricardia vellicata, — Hidalgo, Fauna malacol. de 1. Isl. Filipin., 11, 1903, p. 367, No. 463. 

 Libilimi — — Dautzenberg & Fischer, Journ. de Concliyl., vol. SS, igo.'i, p. 213. 



Coast of Lem Ngob, shallow water, stones (29). Gnlf of Klong Salakpat (4). 

 Koh Chang, shallow water, stones (5). 



Long. 7 — 30 mm. 



Distribution: — Mergui Archip., Andamans, Bombay, Karachi, Persian 

 Gulf. — Philippines, Tonkin, China, Japan, North Australia (Port Darwin), East 

 Australia (Port Curtis). 



In all the specimens from the Gulf of Siam the valves, upon their exterior 

 and interior, are quite white without raj's or coloration at the posterior end (in 

 some of the specimens the umbones are j)urplish-brown). Similar forms have 

 been recorded from the Philippines (Cuming), Japan (Dunker), and North Australia 

 (Coppinger). 



Coralliophaga coralliophaga, Chemn. 



Chama coralliophaga, Chemnitz, Conchyl. Cabin., X, 1788, p. 359, pi. 172, figs. 1673 — 74. 



— - — Gmelin, Syst. Nat., ed. XIII, 1790, p. 3305, Nr. 25. 



Cypricardia — Gmelin, Lamarck, Hist. nat. d. anim. s. vert., VI, I, 1819, p. 28, No. 4. — éd. 2, VI, 



p. 439, No. 4. 



— — Lamarck, Reeve, Conchol. icon.. I, 1843, Cypricardia, Sp. 12. 

 Coralliophaga coralliophaga, Gmelin, H. &A. Adam.s, Genera of recent Mollusca, pi. 109, fig. 6. 

 Cypricardia — Chemnitz, Lischke, Japan. Meeres-Conchyl., 11, p. 140. 



Lilhophagilla, — — v. Martens, Journ Linn. Soc; Zool., vol. 21, 1887, p. 214, No. 372. 



Coralliophaga — Gmelin, Verrill and Bush, Trans. Connecticut Acad., X, 1900, p. 520, pi. 63, 



figs. 9-10. 

 — — Chemnitz, Hidalgo, Fauna malacol. d. las isl. Filipinas, II, 1903, p. 369, 



No. 467. 

 Cardila daclylns, Hrugiiière, Encyclop. method. Vers., I, 1792, p. 412, No. 13. 

 Coralliophaya ductyliis, Bruguière, Mørch, Catal. conchyl. quæ reliq. Yoldi, 11, p. 19, No. 199. 



