[669] INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 37) 
CAVOLINA TRIDENTATA. Plate XXYV, fig. 177. (p. 444.) 
HI. and A. Adams, Genera, vol. i, p. 51, Plate 6, figs. 1, 1"; Verrill, op. cit., p. 284. 
Anomia tridentata Forskal, Fauna Arab., p. 124, 1775 ; Icon., Plate 40, fig. b, 
(t. Lamarck). Hyalea cornea Lamarck, Syst. des Anim., p. 140, 1801. Hyalaa 
tridentata Lamarck, Anim. sans Vert., ed. ii, vol. vii, p. 415. 
Mediterranean Sea and the warmer parts of the Atlantic. The shells 
were dredged off Martha’s Vineyard, at two localities, in 19 and 22 
fathoms. 
DIACRIA TRISPINOSA Gray. (p. 444.) 
British Museum Pteropoda; H. and A. Adams, Genera, i, p. 52, Plate 6, fig. 2°; 
Gould, Invert., ed. ii, p. 504. Hyalewa trispinosa Lesueur, in Blainville, Dict. 
des Sci. Nat., vol. xxii, p. 82, 1824; Forbes and Hanley, Brit. Moll., vol. ii, p. 
380, Plate 5, fig. 3; Stimpson, Shells of New England, p. 27. 
Gulf Stream and warmer parts of the Atlantic generally. Occa- 
sionally cast ashore at Nantucket (Stimpson). 
SPIRIALIS GOULDIT Stimpson. (p. 443.) 
Proc. Boston Soc. Nat. Hist., vol. fiv, p. 8, 1851; Shells of New England, p. 27; 
Plate 1, fig. 4. Heterofusus balea and H. retroversus Binney, in Gould, Invert., 
ed. ii, p. 505, Plate 27, figs. 345-349, (not of European writers). Spirialis 
Flemingii A. Agassiz, Proc. Boston Soc. Nat. Hist., vol. x, p. 14, 1865, (not of 
Forbes). Heterofusus Alecandri Verrill, Amer. Jour. Science, vol. iii, p. 281; 
1872 (young). 
Near Naushon Island and Nahant, Massachusetts (A. Agassiz). 
Twenty miles off No Man’s Land, in stomach of herring, (S. I. Smith). 
Off Saint George’s Bank, in Gulf Stream, (8.1. Smith and O. Harger). 
The identity of this species with the Limacina balea Miller, of Green- 
land, is very questionable. The description of the latter is brief, and 
no mention is made of the spiral sculpture, which is an important char- 
acter of S. Gouldii. 
LAMELLIBRANCHIATA. 
DIMYARIA. 
TEREDO NAVALIS Linné. Plate XXVI, fig. 183. Plate XXVII, fig. 
186. (pp. 384, 482.) 
Systema Nature, ed. xii, p. 1267,1767; Tryon, Proc. Acad. Nat. Sciences, vol. 
xiv, p. 468, 1862; Gould, Invert., ed. ii, p. 28, fig. 355; Jeffreys, Brit. Conch., 
vol, iii, p. 171. 
Coast of United States, from Florida to Vineyard Sound; coasts of 
Europe, from Sweden (Christiania) and Great Britain to Sicily; Algeria 
and the Black Sea (Jeffreys); Senegal. Great Egg Harbor, New Jersey ; 
New Haven Harbor, in piles of wharves; Wood’s Hole, in piles of 
wharf; Vineyard Sound and Buzzard’s Bay, in cedar buoys. 
This is the most abundant species on our Atlantic coast, south o1 
Massachusetts Bay, where it also probably occurs. 
