INVERTEBRATE ANIMALS OF 'VINEYARD SOUND, ETC. 66$ 



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



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

 Anomia tridentata Forskal, Fauna Arab., p. 124, 1775 ; Icon., Plate 40, fig. b, 

 (t. Lamarck). Syalcea cornea Lamarck, Syst. des Anini., p. 140, 1801. Hydlcea 

 tridentata Lamarck, Aniin. 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 a ; 

 Gould, Invert., ed. ii, p. 504. Hyalcea trispinosa Lesueur, in Blainville, 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. 



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

 sionally c,ast ashore at Xantucket (Stimpson). 



Spirialis Gouldit Stimpson. (p. 443.) 



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

 Plate 1, fig. 4. Heterofusus oalea 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, 18G5, (not of 

 Forbes). Heterofusus Alexandra Verrill, Amer. Jour. Science, vol. iii, p. 281> 

 1872 (young). 



Near Xaushon Island and Xahant, Massachusetts (A. Agassiz). 

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

 Off Saint George's Bank, in Gulf Stream, (S. I. Smith and O. Hafger)„ 

 The identity of this species with the Idmacina balea 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. 



LAME LLIBE AXO HI AT A. 



DIMTARIA. 



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

 186. (pp. 384, 482.) 



Systema Naturae, 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. Couch., 

 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 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 of 

 Massachusetts Bay, where it also probably occurs. 



