376 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [670] 
TEREDO MEGOTARA Hanley. Plate X XVII, 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 the North Atlantic; north to Greenland, Iceland, and Spitz- 
bergen; coasts of Scandinavia and Great Britain. Tossil in the Post- 
Pliocene of Scandinavia. 
TEREDO THOMSONII Tryon. Plate XX VII, 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 Soc. 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). Ihave 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, gvol. vip. 126, 1860 ; Tryon, op. cit., p. 478, 
1862; Gould, Invert., ed. ii, p. 34, fig. 361. Teredo palmulatu Forbes and 
Hanley, Brit. Moll., vol. i. p. 86, Plate 2, figs. 9-11, (non Lamarck). Xyl- 
otrya palmulata Stimpson, Check-List, p. 3, 1860 ; Perkins, Proc. Boston Soe. 
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, fig. 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 T'ryon, were not this species, 
but Z. crispata. 
PHOLAS COSTATA Linné. (p. 433.) 
Systema Naturie, ed. xii, p. 1111, 1762 ; Tryon, Proc. Acad. Nat. Sciences, Phila- 
delphia, xiv, p. 201, 1862 ; Gould, Invert., ed. ii, p. 37, tig. 363, 
Caribbean Sea to Buzzard’s Bay. Southern Burope (Linné). New 
3edford Harbor, living, (Gould); Wood’s Hole, Massachusetts, dead 
