2490 
2491 
2492 
2493 
2494 
2495 
2496 
2497 
2498 
2499 
- 2500 
2501 
2502 
2503 
2504 
2505 
2506 
2507 
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2512 
gederopus, var., 
longispina, 
longitudinalis, 
mycrolepas, 
pictorium, 
radians, 
Seen ViaLl’., 
regius, 
tvars 
spathuliferus, 
variegatus, 
oe var., 
zonalis, 
truncata, 
Bruntrutana, 
costata, 
a var., 
spiralis, 
Adriatica, 
arborea, 
borealis, 
ae Nate 
Canadensis, 
89 
Lam., 187 India, 
Lam., 190 America, 
Lam., 190 Indian Ocean, 
Chemn., West Mexico, 
Lam., 191 Nicobar Isles, 
Timor, 
Linn., 187 Borneo, 
Lam., 189 China, 
Chemn., 187 Indian Ocean, 
Sowb., Philippines, 
GENUS POD OP sis’. 
Lam., 198 Courtagnon, 
GENUS EXOGYRA. 
Mt. Jura, 
New Jersey, 
Goldf., Germany, 
List. C., pl. 206, f. 40. 
Enc. Meth., pl. 194, f. 2. 
Chemn. 7, pl. 45, f. 466, 467. 
Knorr. Verg., v. 6, jolly Deh ai: 
Chemn. Vie pl. 45, f. 469, 470. Spondylus Nicobaricus, Chemn. 
Enc. Meth., pl. 191, f. 5. 
Delessert, pl. 20, f. 2. « 
Barb. Verm., pl. 5, f. 2. 
Enc. Meth., pl. 191, f. 4, 6, 7. 
Chemn. 7, pl. 45, f. 464. 
Chenu C. IIL., pl. 10, f. 143. Spondylus geederopus, var. 
Chenu C. Ill., pl. 7, f. 3, 4. 
Lamarck. 
Enc. Meth., pl. 188, f. 6,7. fossil. 
Sowerby. 
Cisse honOuk | ©: P.O. DuAy. 
Orver. UNIMUSCULOSA. 
Famity OSTRACEA. 
GENUS OSTRAZA,. 
Lam., 221 Gulf of Venice, 
Dillw., 224 Indian Ocean, 
Lam., 220 New York, 
Massachusetts, 
Connecticut, 
New Jersey, 
Brug., 226 New York, 
Linneus. 
Knorr. Verg:j vs Spl 14. f, 5: 
Petiv. Amb., pl. LOS fs da, is Ostrea parasitica, Gmel. 
N.H.N. York, pl. 10, f. 203, ’4. 
Gould’s Invert., p. 137. 
Chemn. 8, pl. 78, f. 677 ? 
Enc. Meth., pl. 180, f. 1-3. Ostrea Canadensis, Brug. 
Ene. Meth., pl. 180, f. 1-3. is Ostrea borealis, Lam. 
