GdQ REPORT OP COMMISSIONER OF FISH AND FISHERIES. 



Maryland. Dug up from beneath the uiud in the harbor of Portland, 

 Maine, in a semi-fossil state by the mud-dredging machines (Fuller). 



Pecten Islandicus Chemnitz. 



Conch., vii, p. 304, Plate 65, figs. 615, 616, 1784, (t. Gould); Lamarck, op. cifc., ed. 

 ii, vol. vii, p. 145; Gould, Invert., ed. i, p. 133, fig. 87; ed. ii, p. 198, fig. 495. 

 Osirea Islanclica Miiller, Zool. Dan. Prod., No. 2990. 1776; Fabricins, Fauna, 

 Gronl., p. 415, 1780. Pecten Pealii Conrad, Amer. Mar. Conch., p. 12, Plate 2, 

 fig. 2, 1831. 



Arctic Ocean south to Cape Cod, local and rare farther south ; on the 

 northern European coasts, south to Bergen, Norway, and Great Britain. 

 Not uncommon and of good size in Casco Bay, 20 to 70 fathoms ; com- 

 mon in the Bay of Fundy, low-water to 100 fathoms. Saint George's 

 Bank, 40 to 65 fathoms, (S. I. Smith). More common farther north. 

 Stonington, Connecticut, in an eel-pot, (Linsley). I am not aware that 

 any one except Linsley has recorded it from the southern coast of New 

 England. 



Fossil in the Post-Pliocene of Maine (abundant), New Brunswick, 

 Canada, Labrador, Greenland, Scandinavia, Denmark, Scotland, etc 

 Naples (Jeffreys). Mr. Sanderson Smith reports fragments from Gard. 

 liner's Island. 



Pecten tenuicostatus Mighels. (p. 509.) 



Mighels and Adams, Proceedings Boston Soc. Nat. Hist., vol. i, p. 49, 1841 ; Boston 

 Journal of Natural History, vol. iv, p. 41, Plate 4, fig. 7, 1842 (young) ; Gould, 

 Invert., ed. ii, p. 196, fig. 494. Pecten Magellanicus Lamarck, Anim. sans Vert., ed. 

 ii, vol. vii, p. 134 (? non Gmelin, sp.) ; Hanley, Recent Shells, p. 274 ; Gould, In- 

 vert., ed. i, p. 132. Pecten fuscus Linsley, Amer. Jour. Sci., ser. i, vol. xlviii, p. 

 278, 1845 ; Gould, ser. ii, vol. vi, p. 235, fig. 6, 1848 (young). Pecten brunneus 

 Stimpson, Shells of New England, in errata, 1851. 



New Jersey to Labrador. Rare and local south of Cape Cod. Not 

 uncommon in Massachusetts Bay and Casco Bay, 4 to 80 fathoms; 

 abundant in Frenchman's Bay, Mount Desert, Maine, in 3 to 10 fathoms; 

 common in Passamaquoddy Bay and Bay of Fundy, 1 to 109 fathoms. 

 Saint George's Bank, 45 fathoms, (S. I. Smith). Nova Scotia (Willis). 

 Labrador, 2 to 15 fathoms, (Packard). Off Block Island (Gould). Ston- 

 ington, Connecticut, in cod stomachs, (Linsley, as P. fuscus). Coney 

 Island and Sandy Hook, New York (S. Smith). 



Fossil in the Post-Pliocene near Saint John, New Brunswick, and 

 Gardiner's Island, New York. A closely related species occurs in the 

 Miocene of Virginia. 



ANOMIA glabra Verrill. Plate XXXII, figs. 241, 242, 242 a . (p. 311.) 



American Jour. Science, vol. iii, p. 213, 1872. Anomia ephippium {pars) Linne", 

 Syst. Nat., ed. xii, p. 1150; Gould, Invert., ed. i, p. 138; ed. ii, p. 204, fig. 497. 

 Anomia electrica Gould, Invert., ed. i, p. -140; ed. ii, p. 205, fig. 499, adult, (non 

 Liune".) Anomia squamula Gould, Invert., ed. i, p. 140 ; ed. ii, p. 206, young, 

 (non Linne".) 



Florida to Cape Cod ; rare and local farther north, in Massachusetts 

 Bay, Casco Bay, and on the southern coast of Nova Scotia, off Cape 



