1 
2 
3 
4 
5 
6 
ra 
8 
2 
10 
1] 
12 
13 
14 
15 
16 
17 
18 
19 
20 
21 
22 
23 
24 
Famiry 16.—CARDID. 
Gexus.—CARDIUM. Linneus, 1758. 
C. alternatum. 
C. cardissa. 
C. costatum. 
C. echinatum. 
. edule. 
elatum. 
. enode. 
. fimbriatum. 
hemicardium. 
latum. 
lyratum. 
multispinosum. 
nebulosum. 
oxygonum. 
. Pennantii. 
. pseudo-lima. 
. pygmeum. 
. rugosum, 
. rusticum. 
C 
C. 
C 
C 
C. 
C. 
C. 
C. 
C. muticum. 
C. 
C. 
C 
C 
C 
C 
C 
C 
. tenuicostatum. 
C. tumoriferum. 
C. unedo. 
C, vertebratum. 
I. vulgaris. 
Sowerby. 
Linneus. 
” 
Sowerby. 
9 
Wood. 
Linnezus. 
Born. 
Sowerby. 
9 
Reeve. 
” 
Sowerby. 
Beck. 
Lamarck. 
? 
Lamarck. 
Linneus. 
Lamarck. 
39 
Linneus. 
Jonas. 
Australia. 
Eastern Seas. 
E. Goast of Africa. 
European Seas. 
* 
29 
California. 
Ceylon. 
China. 
Philippines.* 
3 * 
” 
China. 
Ceylon. 
29 
China, &¢. 
Exmouth, Devon. 
Zanzibar. 
Britain. 
Ceylon, &c. 
Adriatic Sea. 
a New Holland. 
6 Mauritius. 
New Hoiland. 
a Rogers’ Straits. 
6 Ceylon, &e. 
Ausiralia. 
Famizy 17.—ISOCARDIIDZ. 
Genvus.—ISOCARDIA. Lamarck, 1799. 
Reeve. 
China. 
Famiry 18.—CHAMIDZ. 
Genus.—CHAMA. SBruguiére, 1789. 
C. multisquamosa. Reeve. 
Philippines. 
Famity 19.—TRIDACNIDZ. 
Grnus.—TRIDACNA. Bruguiére, 1789. 
T. Cumingii. 
T. elongata. 
Reeve. 
Lamarck. 
Andamans. 
a Australia. 
b Philippines. 
SirW.Denison. 
Sir W.Denison. 
M. Robillard. 
SirW.Denison. 
Lieut.MeGoun. 
SirW.Denison. 
