186 90 
Scintilla candida, Desh. 
Scintilla candida, DrsHayes, Proc. Zool. Soc. London, 1855, p. 177, No. 17. 
— -= — Sowersy, Thesaur. Conchyl., UI, p.177, No. 17, pl. 235, fig. 33. 
Sowersy in REEVE, Conchol. icon., XIX, Scintilla, Sp. 6. 
Koh Kahdat, 1 fathom, sand (3). Koh Kahdat, 1—2 fathoms, corals (2). North 
end of Koh Chang, 12 fathoms, old coral blocks (8). 
Long. 2°5—11'5 mm. 
Distribution: — Gulf of Manaar. — Philippines. 
Scintilla Philippinensis, Desh. 
Scintilla Philippinensis, DesHayes, Proc. Zool. Soc. London, 1855, p. 176, No. 14. 
_ — - H. & A. Apams, Genera of rec. Moll., 1858, II, p. 480, pl. 115, fig. 4: 
_ a — Sowerby, Thesaur. Conchyl., Ill, p. 179, No. 36, pl. 235, figs. 3132. 
— Sowersy in Reeve, Conchol. icon., XIX, Scintilla, Sp. 5. 
Koh Kahdat, 1 fathom, sand (1). 
Long. 95 mm., alt. 6 mm. 
Distribution: — Philippines, Sorong (TAPPARONE CANEFRI). 
Scintilla hydatina, Desh. 
Scintilla hydatina, Desuayes, Proc. Zool. Soc. London, 1855, p.177, No. 19. 
— — Sowersy, Thesaur. Conchyl., III, p. 180, No. 39, pl. 235, figs. 56—57. 
— ~~ Sowerby in Reeve, Conchol. icon., XIX, Scintilla, Sp. 38. 
Coast of Lem Ngob, low tide, stones (many specimens). 
Long. up to 6 mm. 
Distribution:— Philippines. 
S. Alberti, Smith,! from Torres Strait is very closely related to the present 
species. 
The accompanying figure drawn from a sketch of Scintilla hydalina, Desh., 
made by Dr. Tu. MorTENSEN from living specimens collected at Lem Ngob, shows 
that the animal agrees in many points with MOsius’s figure (v. MARTENS, Die Mol- 
lusken d. Maskarenen u. Seychellen, 
Berl. 1880, pl. 21, fig. 10) of Scintilla 
aurantia, Lam. The mantle, which 
covers both the valves, is pale yellow 
(the colour being due to numerous 
Scintilla hydatina, Desh. small, pale yellow drops which are 
present in the mantle), and bears 
many, comparatively long papillae, which are contractile; they are smallest in the 
middle of the valves and become larger towards the margins, where they reach a 
length of about 2 mm. They do not agree in form with those figured by Mésrus 
' Report on the zoolog. collections made in the Indo-Pacific Ocean during the voyage of H. M. S. 
“Alert,” 1881—82, Lond. 1884, p. 107, pl. 7, fig. G. 
