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Californianus, 
candidus, 
Caribeeus, 
centralis, 
coarctatus, 
se var., 
constrictus, 
Dombeii, 
fragilis, 
Gangetica, 
Guineensis, 
FE var., 
Javanicus, 
legumen, 
Michaudii, 
strigilatus, 
subteres, 
costata, 
lucida, 
maxima, 
media, 
minuta, 
nitida, 
Nuttallii, 
pellucida, 
var., 
pygmeus, 
radiata, 
se var., 
“ “ 
Aldrovandi, 
“ 
var., 
oe “e 
arctica, 
leeviuscula, 
Norvegica, 
Conrad, 
Renieri, 
Lam., 
Say, 
Gmel., 
Lam., 
Linn., 
Mont., 
Benson, 
Chemn., 
Lam., 
Linn., 
Caill., 
Linn., 
Conrad, 
Say, 
Conrad, 
W ood, 
Gray, 
Mont., 
Gould, 
Conrad, 
Pennt., 
Lam., 
Linn., 
Lam., 
Gould, 
Eichw., 
Speng., 
OY 
Upper California, Jour. Ac. N.S8., 7, 6, pl. 18, f. 3. (Cutellus, Conrad.) 
Rio Janeiro, Chemn. 11, pl. 198, f. 1938. — Solen Sancta Marthe. 
14 New York, Cour: Mic; p. 22, pl. 4, f. 3. Solen Guineensis ? Chemn. 
Rhode Island, Enc. Meth., pl. 225, f. 1. 
Rye, New York,  W. Ind., pl. 3, f. 15. 
Rhode Island, Jour. Ac. N.S., v. 2, p. 316. is Solecurtus coarctatus, Gmel. 
17 Mediterranean, Pennt. B. Z., v. 4, pl. 46, f. 25. Solecurtus antiquatus, Lam. 
Rhode Island, Conr. M. C., pl. tis I p- 19. Solecurtus centralis, Say. 
15 China, Hanley Spec., p. 14. 
12 South America, Enc. Meth., pl. 224, f. 1, abe. 
England, Mont. T. B., p. 51. is Solecurtus bidens, Chemn. 
River Ganges, Novaculina Gangetica, Benson. 
14 Senegal, Chemn. 11, pl. 198, f. 1937. Solecurtus Caribeus? Lam. 
Senegal, Adan’s Sen., p. 225, pl. 19, f. 1. La Tagal, Adans. 
13 Java, Deless., pl. 2, f. 4, a b. 
11 Mediterranean, De Blain., Mal., pl. 80, f. 1. | Psammobia legumen, Turt. 
Sumatra, Guer. M. Z., 1839, pl. BY, is Solecurtus acutidens, Sowb. 
18 Mediterranean, Enc. Meth., pl. 224, f. 3. 
Upper California, Jour. Ac. N.S., 7, pl. 17, f. 10. Cultellus subteres, Conrad. 
GENUS MACHZARA. Gould. 
New York, Amer. Conch., pl. 18. 
Upper California, Jour. Ac. N.S., v. 7, p. 231. 
Oregon, W. Gen. C., pl. Byil, tie, Gh Solecurtus Nuttallii, Conrad. 
Bks. Newfoundland, Zool. Beech., pl. 44, f. 2. Machera nitida, Gould. 
6 England, Mont. T. B., p. 49. is Machera pellucida, Pennt. 
Bks. Newfoundland, Gould’s Rep., p. 33, f. 25, 26. is Machewra media, Gray. 
California, Jour. Ac. N.S., v. 7. is Machera maxima, Wood. 
6 England, Pennt. B. Z., 4, pl. 46, ii, Py Solen pygmeus, Lam. 
England, Mont. Test. Brit., p. 49. Solen minuta, Mont. 
6 France, Wood’s Ind., pl. 3, f. 7. is Machera pellucida, Pennt. 
19 Amboyna, WiiGeni@pla siete: 
Sumatra, Wood's Ind., pl. 3, f. 14. 
GENUS PANOP&ZA. Ménard. 
4 Mediterranean, WaGeni@s plies, & I: Mya glycimeris, Linn. 
Don. B. Shells, pl. 142. 
70 Bks. Newfoundland, Gould’s Invert., f. 27. is Panopea Norvegica, Speng 
Caspian Sea, Eich. Faun., p. 225, pl. 39, f. 1. Adaena leviuscula, Eich. 
Bks. Newfoundland, Forbes’s B. M., p. 174, pl. 11. Panopea arctica, Gould. 
