167 263 
Tridacna squamosa, LAMARCK, REEVE, Conchol. icon., XIV, Tridacna, Sp. 3. 
- — : Sowersy, Thesaurus Conchyl., V, 1887, p. 180, pl. 485 —489*, figs. 2, 7, 15, 17. 
— = = L. Moret, Journ. de Conchyl., vol. 37, 1889, p. 168. 
= — - P. Fiscuer, Catal. de Moll. de l'Indo Chine, p. 228. 
a -— — Hipaico, Obras malacolodgicas, I, tom. Il, 1903, p. 386, No. 489. 
= gigas L. var. sgyuamosa, Lamarck, Ch. HepLeEy, Australian Museum, Sydney, Memoir III, 1896— 
1900, p. 504. 
Koh Kahdat, 1—2 fathoms, coral (1). 
Islands in the Gulf of Siam (Mortet). 
Long. 245 mm. 
Distribution: — Singapore, Mergui Isls., Nicobars, Ceylon, Seychelles. — 
Poulo Condor, Annam, Philippines, Loo Choo Isls., Japan, Moluccas, Sulu Isls., 
Java, Timor, New Guinea, Torres Strait, North and East Australia, New Caledonia, 
South Sea Islands (“What information we have, suggests that the range of this 
species is almost co-extensive with that of the reef-building corals.” Cu. HEDLEY 
loc. cit.). 
Eve. Smitu says! “I should not be surprised if Tridacna squamosa or Tridacna 
rudis should prove to be the early stages of this colossal form (Tridacna gigas).” 
A. H. Cooke” and Cu. Hepiey® have arrived at a similar conclusion; HEpLEY thinks 
that ‘No characters of permanent value separate T. squamosa from T. gigas.” 
Tridacna crocea, Lam. 
Tridacna crocea, Lamarck, Hist. nat. d. anim. s, vert., VI, 1 p. 1819, p. 106. — éd. 2, VII, 1836, p. 10. 
= = = Quoy & Gaimarp, Voyage de l’Astrolabe, II, 1833, p. 488, pl. 79, figs. 2—3. 
= = — Martini u. CHEmMNitTz, Conchyl. Cabin., VIII, 4 Abth., p. 6, pl. 1, fig. 6. 
- — — Reeve, Conchol. icon., XIV, Tridacna, Sp. 9 (incl. varr. Sp. 7 and 8). 
— — _ Sowerby, Thesaurus Conchyl., V, 1887, p. 181, pl. 486—87, figs. 5—6, 8—10. 
North end of Koh Chang, 1 fathom, boring in old coral blocks (2). Koh Kahdat, 
in coral blocks (1). 
Long. 115 mm., alt. 84 mm. 
Distribution: — Singapore, Mergui Isls., Andamans, Nicobars, Persian Gulf, 
Aden, Madagascar. — Philippines, Loo Choo Isls., Moluccas, Cape York (N. Australia), 
Lifu, New Ireland, Rarotonga. 
Fam. Chamidae. 
Chama multisquamosa, Reeve. 
Chama multisquamosa, REEVE, Conchol. icon., 1V, 1846, Chama, Sp. 12. 
— -- _ Martini u. CHEMNITZ, Conchyl. Cabin., VIII, 5 Abth,, p. 33, pl. 14, figs. 1—2. 
Many specimens taken in 23 different localities between Koh Rin and Koh 
Kut, 1—30 fathoms, sand, shells, clay and mud. 
1 Lamellibranchiata of the Challenger Expedition, p. 171. 
* Annals & Magaz. Nat. Hist., Ser. 5, vol. 18, p. 97. 
5 Australian Museum, Sydney, Memoir III, 1896—1900, pp. 504—5. 
