141 237 
S. of Koh Chuen, 30 fathoms, shells (4). Between Koh Chuen and Koh Chang, 
15 fathoms, mud (1). West side of Koh Chang (*/2). W. of Koh Kut, 30 fathoms, 
sand and mud (*/:). W. of Koh Kut, 15 fathoms, mud (1). 
Long. 6—53 mm. 
Distribution: — New Guinea, Inland Sea (Japan, STEARNS), Sydney. 
All the specimens from the Gulf of Siam, like Epc. Smirn’s individual from 
New Guinea, have the four interrupted, brown rays from the umbo to the ventral 
side very marked; on the other hand, “the brown apices to the umbones” cannot, 
as Epc. SmirH assumes, be regarded as characteristic of this species, for among 
the individuals, both the large ones and the eight young (= T. polita, Sow.), which 
I have before me, only one exhibits a slight indication of lilac at the tip of the 
umbones. 
Tapes (Paratapes) undulatus, Born. 
Venus undulata, Born, Index Mus. Ces, Vindobon., 1778, p.54. — Testacea Musei Czesarei Vindobon., 
1780, p. 67. 
Tapes — — Reeve, Conchol. icon., XIV, Tapes, Sp. 8. 
—  (Textrix) undulata, Born, ROmeER, Monogr. d. Moll. Venus, II, p. 20, No. 2, pl. 5, fig. 2. 
— undulatus, Born, Liscuke, Japan. Meeres-Conchylien, II, p. 171, III, p. 80. 
—  (Paratapes) undulata, Born, EpG. Smiru, Report on the Lamellibranchiata of the Challenger Exped., 
p- 115. 
— undulatus, Born, Fiscuer, Catalogue d. Moll. de Indo Chine, p. 273. 
Venus rimosa, Puixirept, Zeitschr. f. Malakozool., [V, 1847, p.88, No. 21. 
~~ — _ Abbild. u. Beschreib., HI, p. 77 (25), pl. 7, fig. 7. 
Tapes - — Sowerby, Thesaurus Conchyl., IJ, p. 682, No. 11, pl. 146, fig. 29. 
Koh si Chang (‘/2). Sound of Koh Chang, 3—5 fathoms, soft clay, exceedingly 
common, a great many specimens. West of Koh Chang, 20 fathoms, mud (2). 
W. of Koh Kut, 15 fathoms, mud (‘/2). North of Koh Kong, 8 fathoms, mud (1). 
Long. 6—60 mm. 
Gulf of Siam (Mor.et). 
Distribution:— Mergui Archip., Ceylon, Mekran Coast, Persian Gulf. — Philip- 
pines, China, Japan, Arafura Sea, Port Jackson and Sydney Harbour, Bass Strait. 
Tapes (Protapes) Malabaricus, Ch. 
Venus Malabarica, CHemnitz, Conchyl. Cabin., VI, 1782, p. 323, pl. 31, figs. 324—25. 
Tapes — _— Sowersy, Thesaurus Conchyl., Il, p. 682, pl. 145, figs. 6—8. 
_— — — REEVE, Conchol. icon., XIV, Sp. 27. 
Venus malabarica, -— L. Preirrer in Martini u. Cuemnirz, Conchyl. Cabin., XI Bd., 1 Abth., p. 175, 
pl. 17, figs. 1-—2. 
Tapes (Textrix) Malabarica, CHEMNiTz, ROMER, Monogr. d. Molluskengatt. Venus, II, p. 34, pl. 10, fig. 3. 
—  Malabaricus, CHemnitz, P. FiscHer, Catalogue d. Moll. de l’Indo Chine, p. 234. 
— = — Epa. SmirH, Proc. Zool. Soc. London, 1891, p. 424. 
Venus rhombifera, Haniry, Catalogue of recent bivalve shells, p. 120, pl. 13, fig. 45. 
Tapes lentiginosa, REEVE, Conchol. icon., XIV, Sp. 25 (fide Epa. Smrrn). 
Between Koh Mesan and Cape Liant, 5—9 fathoms (1). N. of Koh Kam, 5 
fathoms, gravel (1/2). Coast of Lem Ngob (*/2). Between Koh Kahdat and Koh Kut, 
6 fathoms, mud mixed with sand (2). W. of Koh Kut, 15 fathoms, mud (‘/2). 
