376 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [670] 
TEREDO MEGOTARA Hanley. Plate XXVII, fig. 188. (p. 387.) 
Forbes and Hanley, Brit. Conch., vol. i, p. 77, Plate 1, figs. 1, 2; Plate 18, figs. 1, 
2; vol. iv, p. 247; Tryon, op. cit., p. 466, 1862; Jeffreys op. cit., p. 176; 
Gould, Invert., ed. ii, p. 30, fig. 357. 
Massachusetts Bay to South Carolina. Common in floating drift- 
wood, in tbe North Atlantic; north to Greenland, Iceland, and Spitz- 
bergen; coasts of Scandinavia and Great Britain. Fossil in the Post- 
Pliocene of Scandinavia. 
TEREDO THOMSON Tryon. Plate X XVII, fig. 187. (p. 387.) 
Proc. Acad. Nat. Sci., Philadelphia, vol. xv, p. 28, Plate 2, figs. 3, 4, 5, 1863; 
Gould, Invert., ed. ii, p. 31, fig. 358. 
New Bedford, Massachusetts, in cedar buoys (Tryon). Provincetown, 
Massachusetts, in whale-ship (Atwood). 
{TEREDO DILATATA Stimpson. 
Proc. Boston Soe. Nat. Hist., vol. iv, p. 113,1851; Shellsof New England, p. 26; 
Tryon, op. cit., p. 464, 1862; Gould, Invert., ed. ii, p. 32, fig. 359. 
Massachusetts to South Carolina (Tryon). Cape Ann, in buoys, 
(Stimpson). Provincetown, Massachusetts (Gould). Greenport, Long 
Island (S. Smith). I have not met with this species south of Cape Cod. 
XYLOTRYA FIMBRIATA Jeffreys. Plate X XVII, fig. 189. (p. 387.) 
Annals and Mag. Nat. Hist., ser. iii, vol. vi, p. 126, 1860 ; Tryon, op. cit., p. 478, 
1862; Gould, Invert., ed. ii, p. 34, fig. 361. Zeredo palmulata Forbes and 
Hanley, Brit. Moll., vol. i. p. 86, Plate 2, figs. 9-11, (non Lamarck). Xyl- 
otrya palmulata Stimpson, Check-List, p. 3, 1460 ; Perkins, Proc. Boston Soc. 
Nat. Hist., vol. xii, p. 141, 1869. 
Long Island Sound to Florida ; Pacific coast, at the Straits of Fuca ; 
Europe. In an old submerged wreck near New Haven. From the hull 
of the “ Peterhoff,” used in the blockade of the southern coast during the 
late war. Frequent in vessels from foreign ports. 
PHOLAS TRUNCATA Say. Plate XXVII. fig. 200. (p. 372.) 
Journal Acad. Nat. Sciences, Philadelphia, ser. i, vol. ii, p. 321, 1822; Binney’s Say, 
p. 107 ; Hanley, Recent Shells, p. 6, Plate 9, fiz. 26; Tryon, op. cit., p. 202; 
Gouid, Invert., ed. ii, p. 38, fig. 364. 
Vineyard Sound to Florida. Payta, Peru (Tryon). Common on the 
shores of Long Island Sound, near New Haven. The large specimens 
from Sable Island (Gould), mentioned by Tryon, were not this species, 
but Z. crispata. 
PHOLAS CosTATA Linné. (p. 433.) 
Systema Nature, ed. xii, p. 1111, 1762 ; Tryon, Proc. Acad. Nat. Sciences, Phila- 
delphia, xiv, p. 201, 1862 ; Gould, Invert., ed. ii, p. 37, fig. 363. 
Caribbean Sea to Buzzard’s Bay. Southern Europe (Linné). New 
Bedford Harbor, living, (Gould); Wood’s Hole, Massachusetts, dead 
