INVEETEBRATE ANIMALS OF VINEYARD SOUND, ETC. 669 



Cavolina tridentata. Plate XXV, fig. 177, (p. 444.) 



H. and A. Adams, Genera, vol. i, p. 51, Plate 6, figs. 1, l'' ; Verrill, op. cit., p. 284. 

 Anomia tridentata Forskal, Fauna Arab., p. 1'24, 1775 ; Icon., Plate 40, fig. b, 

 (t. Lamarck). Hijalcea cornea Lamarck, Syst. desAiiim., p. 140, 1801. HyaUva 

 tridentata Lamarck, Anim. saus Vert., ed. ii, vol. vii, p. 415. 



Mediterranean Sea and tlie wanner 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 fi<r. 2» • 

 Gould, Invert., ed. ii, p. 504. HyaJwa trispinom Lesueur, in Blaiuville, Diet, 

 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. 



Gnlf Stream and warmer parts of the Atlantic generally. Occa- 

 sionally cast ashore at Xantucket (Stimpson). 



Spirialis Gouldii Stimpson. (p. 443.) 



Proc. Boston Soc. Nat. Hist., vol. [iv, p. 8, 1851 ; Shells of New England, p. 27 

 Plate 1, fig. 4. Heterofusns halea and H. rcfrorersns Biiiney, in Gould, Invert., 

 ed. ii, p. 505, Plate 27, figs. 345-349, (not of European writers). S2)iriaJis 

 Flemingii A. Agassiz, Proc. Boston Soc. Nat. Hist., vol. x, p. 14, 1865, (not of 

 Forbes). Reterofnstts AJexandrl Verrill, Amer. Jour. Science, vol. iii, p. 281> 

 1872 (young). 



Xear Xaushon Island and Xahant, Massaclinsetts (A. Agassiz). 

 Twenty miles off Xo Man's Land, in stomach of herring, (S. I. Smith). 

 Off Saint George's Bank, in Gnlf Stream, (S. I. Smith and O. Harger). 

 The identity of this species with tiie Liniacina halea Moller, 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. 



LAMELLIBRAXCHIATA. 



DDIYARIA. 



Teredo navalis Liune. Plate XXVI, fig. 183. Plate XXVII, fig. 

 18G. (pp. 384, 482.) 



Systema Naturaj, ed. xii, p. 12G7, 17G7; Trj'on, Proc. Acad. Nat. Sciences, vol. 

 xiv, p. 4G8, 1862; Gould, Invert., ed. ii, y>. 23, 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, Xew Jersey j 

 Xew Haven Harbor, in piles of wliarveo; 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 of 

 Massachusetts Bay, where it also probably occurs. 



