ETC. 669 

 Oavolina tridentata. Plate XXY, fig. 177. (p. 444.) 



H. and A. Adams, Genera, vol. i, p. 51, Plate 6, figs. 1, 1"; Verrill, oj). cit., p. 284. 

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

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

 tridentata Lamarck, Auim. sans Yert., ed. ii, vol. vii, p. 415. 



Mediterraueau Sea aud the warmer i^arts of the Atlantic. The shells 

 were dredged off JMartha's Vineyard, at two localities, in 19 aud 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. Hyalwa trisj^inosa 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 Gouldii Stimpson. (p. 443.) 



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

 Plate 1, fig. 4. Seterofusus lalea and H. reiroversus Binney, in Gould, Invert., 

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

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

 Forbes). Heterofusus Alexandri 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, (S. I. Smith and O. Harger). 

 The identity of this species with the 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 iuiportant char- 

 acter of 8. Gouldii. 



LAMELLIBRANCHIATA. 



DIMYARIA. 



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

 18G. (pp. 384, 482.) 



Systema Naturae, ed. xii, p. 1287,1767; Tryon, Proc. Acad. Nat. Sciences, vol. 

 xiv, p. 468, 1862; Gould, Invert., ed. ii, p. 28, tig. 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 \ 

 Xew Haven Harbor, in piles of wharvea; 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, soutli of 

 Massachusetts Bay, where it also probably occurs. 



