INVEETEBEATE ANIMALS OF VINEYAED SOUND, ETC. 693 



Island Sound, Buzzard's Bay, Vineyard Sound, Massachusetts Bay, 

 Casco Bay, Bay of Fundy (littoral to 50 fathoms), and northward. Fort 

 Macon, North Carolina (Coues). 



Fossil in the Post-Pliocene of Greenland, Labrador, Canada, Lake' 

 Champlain, Maine, New Brunswick, Point Shirley, Massachusetts, 

 and Saint John's Biver, Florida ; in the Post-Pliocene of Scandinavia, 

 Eussia, and Great Britain; in the Eed Crag and all later formations iu ( 

 England. 



Modiola modiolus Turton. Plate XXXI, fig. 237. (p. 309.) 



British Bivalves, p. 199, Plate 15, fig. 3, 1822; Gould, Invert,, ed. i, p. 123 ; ed. 

 ii, p. 186, fig. 485 ; Dekay, op. cit., p. 185, Plate 24, fig. 257. Mytilus modiolus 

 Linne", Syst. Nat., ed. xii, p. 1158. (t)Modiola papuana Lamarck, Anim.sans 

 Vert., ed. ii, vol. vii, p. 17 ; Say, Amer. Conch., Plate 45. 



Circumpolar : Greenland southward to New Jersey 3 on the European 

 coast from Spitsbergen southward to Great Britain and France ; in the 

 North Pacific southward to Monterey, California, on the American 

 coast; and southward to Northern Japan on the Asiatic coast. Long- 

 Island Sound, not very common ; Vineyard Sound and Buzzard's Bay, 

 not abundant; common in Massachusetts Bay ; abundant in Casco Bay 

 and Bay of Fundy, low-water to 80 fathoms. Staten Island and Long 

 Island (S. Smith). Fossil in the Post-Pliocene of Point Shirley, Massa-l 

 «husetts, Montreal, Canada, Scotland, Ireland, Sicily, etc.; in the Cor- 

 aline Crag, Bed Crag, and later formations in England. J 



Modiola plicatula Lamarck. Plate XXXI, fig. 238. (p. 307.) 



Anini. sans Vert., ed. i, 1819 ; ed. ii, vol. vii, p. 22 ; Gould, ed. i, p. 125, fig. 81 ; ed. ii, 

 p. 188, fig. 486 ; Dekay, op. cit., p. 184, Plate 14, fig. 258 ; Hauley, Eecent Shells, 

 p. 240. Mytilus plicatus Deskayes, Encyclop. Metb., Plate 220, fig. 5 ; Stinipson, 

 Shells of New England, p. 12. Modiola semicosia Conrad, Jour. Acad. Nat. Sci., 

 Philad., vol. vii, p. 244, Plate 20, fig. 7, (t. Gould). Mytilus demissus Dillyn, 

 Catal. Eecent Shells, vol. i, p. 314 (t. Gould). Braohydontes plicatulus H. and 

 A. Adams, Genera, vol. ii, p. 517 ; Perkins, op. cit., p. 156. 



Georgia, to Casco Bay, Maine ; more rare and local farther north ; 

 in the southern part of the Gulf of Saint Lawrence, and on the coast of 

 Nova Scotia ; nor observed on the coast of Maine east of the Kennebeck 

 Biver, norm the Bay of Fundy. Very abundant at Egg Harbor, New 

 Jersey, Long Island Sound, Buzzard's Bay, and Vineyard Sound; less 

 abundantin Massachusetts Bay, near Salem, Massachusetts, etc. ; local in 

 sheltered muddy coves about Casco Bay and Quahog Bay, Maine. Mouth 

 of the Kennebeck Biver (C. B. Fuller). Prince Edward's Island (Daw- 

 son). Nova Scotia (Willis). Fort Macon, North Carolina (Coues). 

 Georgia (Couper). 



Modiola hamatus Verrill. (pp. 374, 475.) 



American Journ. Science, vol. iii, p'. 211, Plate 7, fig. 3, 1872. Mytilus hamatus 

 Say, Journ. Acad. Nat. Sci., Philadelphia, vol. ii, p. 265, 1822; American Cou- 

 chology, Plate 50; Binney's Say, pp. 91, 204, Plate 50. Aulacomya hamatus 

 Adams, Genera, vol. ii, p. 513. Brachydontes hamatus Perkins, op. cit., p. 156, 1869. 



Long Island Sound to Florida, and the shores of the Gulf of Mexico 



