GASTEROPODA. ol 
Migh. et Ad. Puncturella Noachina, Lowe. F. et H. 
— Corall. and D. 8. Coral. From Cape Cod north- 
ward. Eastport Harbor, 25 f. rocky bottom, (W. 8.) 
Off Manchester, Cape Ann, in 20 f. gravel, ( Wh.) 
Var. C. princeps in 30 f. gravel, off Grand Manan, 
(W. Ss.) 
TROCHIDZ. 
Trocnus occipentatis, Migh. et Ad., 1841. Margarita 
alabastrum, Beck, MS. Lovén. Trochus alabastrum, 
Forbes et Hanley.— Coralline. Maine. In 30 f. 
eravel, off Grand Manan, (W. 8.) 
MarcariTa CINEREA, Gould, 252. Lovén. Turbo ci- 
nereus, Couth., 1888.— Lamin. Corall. West Isles 
near Eastport, in 10 f. gravel, (W. 8.) In 40 f. off 
Grand Manan, (W. 8.) and southward to Cape Cod. 
M. osscura, Gould, 253, f. 171*. Turbo obscurus, 
Couth., 1838.— Lamin. Whole Coast N. of Cape 
Cod, and at Stonington, Conn. (fide Linsley.) East- 
port, 6 f., mud, (W. 8.) Grand Manan, 4 f,, sand, 
(W. 8S.) Off Isles of Shoals, in 20 f. sand, (Wh.) 
Beverly Harb. (Ag.) Off Egg Rock, near Nahant, 
17 f. sand, (Tufts and Haskell.) Provincetown Har- 
bor, (Tott.) 
M. unputata, Sow. Gould, 254, f. 172*.— Lamin. 
From Cape Cod northward. Grand Manan, 4 f. 
nullipore bottom, (W. 8.) 
M. arcentata, Gould, 256, f. 174*.— Corall. Grand 
Manan, (W. 8.) to Cape Cod. 
