[669] INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 375 



CAVOLINA TRIDENTATA. Plate XXV, fig. 177. (p. 444.) 



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

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

 (t. Lamarck). Hyahea cornea Lamarck, Syst. des Auim., p. 140, 1801. Hyalcea 

 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 TRisriNOSA 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. Hyaltm 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 cast ashore at Nantucket (Stimpson). 



SPIRIALIS GOULDIT Stimpson. (p. 443.) 



Proc. Boston Soc. Nat. Hist., vol. [iv, p. 8, ]851 ; Shells of Ne\v England, p. 27 &amp;gt; 

 Plate 1, fig. 4. Heterofmus balea and //. retroversus Biuney, in Gould, Invert., 

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

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

 Forbes). Heterofnsits Alexandra Verrill, Arner. Jour. Science, vol. iii, p. 281? 

 1*872 (young). 



Near Naushon Island and Nahaut, 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, (S. I. Smith arid O. Harger). 

 The identity of this species with the Lunacina 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 8. Gouldii. 



LAMELLIBRANCHIATA. 



DIMYARIA. 



..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. 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, New Jersey ; 

 New Haven Harbor, in piles of wharves; Wood s Hole, in piles of 

 wharf; Vineyard Sound and Buzzard s Bay, in cedar buoj S. 



This is the most abundant species on our Atlantic coast, south 01 

 Massachusetts Bay, where it also probably occurs. 



