208 112 
Tellina Lilium, HANLEY, ROMER in Martini u. CHEMNITZ, Conchyl. Cabin., X Bd., 4 Abth, p. 253, No. 157, 
pl. 48, figs. 4—6. 
Macoma litium, Hanvey, V. Bertin, Révision d. Tellinidés, p. 337, No. 12. 
— Lilium, — HipauGo, Fauna malacol. de 1. Isl. Filipinas, II, 1903, p. 160, No. 279. 
Tellina donaciformis, DEsHAyES, Proc. Zool. Soc. London, 1854, p. 357, No. 182. 
-  donaciniformis, — REEVE, Conchol. icon., XVII, Tellina, Sp. 299. 
—  (Homala) donaciformis, DesHayres, V. Bertin, Révision d. Tellinidés, p. 290, No. 178. 
(Donax) Tellina Essingtonensis, DESHAYES, REEVE, Conchol. icon., XVII, 1866, Tellina, Sp. 73. 
Macoma Essingtonensis, DESHAYES, V. BERTIN, Révision d. Tellinidés, p. 342, No. 26. 
E. of Koh Mak, 20 fathoms, mud (*/2). Between Koh Kut and Koh Kahdat, 
6—10 fathoms, clay and shells (2 ++ %/2). W. of Koh Kut, 30 fathoms, sand and 
mud (°/2). 
Long. 10—18 mm. 
Distribution:— Singapore (2—3 fathoms, Danish Exp. to Siam). — Philip- 
pines, Torres Strait, Port Essington, Lane Cove (Port Jackson), Isl. Ravvak (FREYCINET). 
Tellina (Macoma) Moluccensis, Mart. 
Tellina Moluccensis, E. v. MAnTENS, Annals and Magaz. of Nat. Hist., 3 Ser., vol. 16, 1865, p. 430, No. 5. 
— (Metis) Moluccensis, E. v. MARTENS, ROMER in MarTINI u. CHEMNITZ, Conchyl. Cabin., X Bd., 4 Abth. 
p. 213, No. 129, pl. 41, figs. 4—6. 
Metis Moluccensis, E. v. MARTENS, V. Beatin, Révision d. Tellinidés, p. 332, No. 13. 
Surface mud along the coast of Lem Ngob, low tide (‘/z). Coast of Lem Ngob, 
low tide, stones (*/2). ' 
Long. 17 mm., alt. 13 mm. 
Distribution: — Moluccas. 
I have referred the present species to the subgenus Macoma; it is difficult to 
understand why previous authors have referred it to the subgenus Metis. 
Tellina (Macoma) tenuisculpta n. sp. 
(Pl. IV, Figs. 3—5). 
The valves of this species are triangular in form, white and rather thin, and 
compressed; they are somewhat gaping at the ends, epecially the posterior end. 
The umbones are situated at about the middle of the axis of the shell, the upper 
margin slopes abruptly down on both sides, the posterior end is prolonged some- 
what in an acute, rostrum-like manner, and the ventral side is gently curved. The 
different individuals exhibit a more or less distinct “Tellina-curvature.” The sur- 
face is covered with narrow, close-set, finely crenulated, concentric, raised lines which 
are irregular and at different mutual distances. The interstices between the concen- 
tric striz are closely set with fine, irregular radial folds and strize which are not all 
equally fine; this sculpture gives a rough appearance to the surface. The interior 
of the valves is white and somewhat glossy. The right valve has two cardinal 
teeth of which the hinder is the larger and is bifid; the left valve has also two 
cardinal teeth, the anterior is stout and bifid while the posterior is slender. The 
