230 134 
Note. It is almost certainly due lo erroneous determination when L. MorLET 
(Journ. de Conchyl., vol. 37, 1889, p. 169, No.61) records Tivela bicolor, Gray, from 
the islands in the Gulf of Siam; this species has previously been taken only at 
Senegal. 
Circe scripta L. 
Venus scripla, Linné, Syst. Nat. ed. X, 1758, p. 689, No. 121. — ed. XII, p. 1135, No. 145. — Mus. Ludov. 
Ulr. reg., p. 507, No. 73. 
Circe - —  Sowersy, Thesaurus Conchyl., IH, p.651, No. 7, pl. 139, figs. 38—43. 
— _ — Reeve, Conchol. icon., XIV, Circe, Sp. 1, fig. 1; pl. 2, fig. 5 (C. fulgurata), fig. 6 (C. pero- 
nata), pl. 38, fig. 11 (C. sugillata). 
Cytherea scripta, Linnté, Martini u. Cuemnirz, Conchy]. Cabin., XI, 1 Abth., p. 54, pl. 20, figs. 1—4. 
Circe - — Romer, Monogr. d. Molluskengatt. Venus, I, p. 193, pl. 52, fig. 1; pl. 59, figs. 3—4. 
- — Moret, Journ. de Conchyl., vol. 37, 1889, p. 169, No. 65. 
Many specimens were taken around Koh Kahdat and Koh Kut, in 1—15 
fathoms, mud, clay mixed with sand, and sand. 
Long. 7—51 mm. 
Islands in the Gulf of Siam (Mor et). 
Distribution:— Singapore, Mergui Archip., Nicobars, Ceylon, Gulf of Manaar, 
Mulaku Atoll, Mekran Coast, Persian Gulf, Red Sea, Aden, Suez, Seychelles, Coro- 
mandel. — Philippines, China, Japan, Moluccas, Flores Isl., Aru Isl., Torres Strait, 
Port Jackson (N. S. Wales). 
Note. Many specimens of Circe undatina, Lam., have been taken at Singapore 
in shallow water by Mr. Sv. Gap. 
Circe sulcata, Gray. 
Circe sulcala, Gray, The Analyst, VIII, 1838, p. 307. 
- — Romer, Malakozool. Blatter, X, 1863, p. 11, No. 16. 
- - Reeve, Conchol. icon., XIV, Circe, Sp. 16. 
-- — Romer, Monogr. d. Molluskengatt. Venus, I, p. 210, No. 16, pl. 57. fig. 2. 
— pce. Smirn, Lamellibranchiata of the Challenger Exped., 1885, p. 142. 
Artemis, Desuayrs, Catalogue of the Conchifera of British Museum, 1853, p. 86, No. M2e 
Reeve, Conchol. icon., XIV, Circe, Sp. 15. 
Metcalfei, - Proc. Zool. Soc. London, XXI, 1853, p. 7, No. 28. 
Cytherea erythraea, Jonas, Zeitschr. f. Malakozool., 1845, p. 69. 
— - - Puiuippi, Abbild., II, 1851, p. 71, pl. 9, fig. 2. 
Circe paeta, ROMER, Malakozoolog. Blatter, VII, 1860, p. 155. 
Cytherea paeta, ROMER, Marvini u. Cuemnitz, Conchyl. Cabin., XI, 1 Abth., p. 59, pl. 22, figs. 6—7. 
plebeja, Hanvey, Proe. Zool. Soc. London, XII, 1844, p. 109. 
_ Rec. bivalve shells, p. 356, pl. 15. fig. 37. 
Circe -- Sowersy, Thesaurus conchyl., II, p. 653, No. 15, pl. 138, figs. 33—37. 
N. of Koh Kam, 5 fathoms, gravel (10). Between Koh Riot and Koh Mesan, 
35 fathoms, sand (2). Gulf of Rayong, 7—10 fathoms, sand and mud (3). Koh Kahdat, 
1—5 fathoms, sand (15). W. of Koh Kut, 15 fathoms, mud (5). 
Long. 4—17 mm. 
Distribution: — Mergui Archip., Angrias Bank, Persian Gulf, Gulf of Tad- 
jourah, Red Sea. — Philippines, Java, Viti Isls. 
