[723] INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 429 
Island Sound, near New Haven; common in Vineyard Sound and Massa- 
chusetts Bay; very abundant in Casco Bay, Bay of Fundy, and Gulf 
of Saint Lawrence. Off Saint George’s Bank (S. I. Smith). Fire 
Island, Long Island (S. I. Smith). 
IDYIA ROSEOLA Agassiz. (p. 451.) 
Contributions to Nat. Hist. U. S., vol. iii, pp. 270-296, Plates 1, 2, 1460; A. 
Agassiz, Catalogue, p. 36, figs. 52-62, 1865. 
Vineyard Sound to Labrador. Off Gay Head, not common; common 
in Massachusetts Bay and Casco Bay; very abundant in Bay of Fundy 
and Gulf of Saint Lawrence. Labrador (Packard). 
? Cestum Veneris Lesueur. 
Nouv. Bull. Soe. Phil., 1813, p. 281, Plate 5, fig. 1; Lesson, Zobphytes Acalephes, 
p- 70, Plate 1, fig. 1. 
Mr. S. I. Smith observed a species, apparently identical with this, at 
Saint George’s Banks, and Mr. A. Agassiz has observed fragments of a 
similar species near Newport, Rhode Island. This is properly a more 
southern species, found in the warmer parts of the Atlantic and in the 
Mediterranean Sea. 
DISCOPHOR. 
AURELIA FLAVIDULA Péron and Lesueur. Plate XXXVI, fig. 271. (p. 
449.) 
Ann. Mus. Hist. Nat., vol. xiv, p. 47, 1809; Lesson, op. cit., p. 376, 1843; Agassiz, 
Contributions to Nat. Hist. U. S., vol. iii, Plates 6-115; vol. iv, pp. 10, 160; A. 
Agassiz, Catalogue, p. 42, figs. 65, 66. Aurelia aurita Stimpson, Invert., of 
Grand Manan, p. 11, 1853. 
Buzzard’s Bay to Greenland. Common in the upper part of Buzzard’s 
Bay, in spring; off Gay Head and in Vineyard Sound, in August ; 
abundant in Massachusetts Bay; Casco Bay; Frenchman’s Bay; Bay 
of Fundy; and Gulf of Saint Lawrence. 
CYANEA AROCTICA Péron and Lesueur. (p. 449.) 
Ann. Mus., vol. xiv, p. 51, 1809; Agassiz, Contributions, vol. iii, Plates 3, 4, 5, 5%, 
10, 10°; vol. iv, pp. 87, 162; A. Agassiz, Catalogue, p. 44, fig. 67. Cyanea Pos- 
telsii Gould, Invert., ed. i, p. 347; Stimpson, op. cit., p. 11 (non Brandt). 
Long Island Sound to Greenland. Common near New Haven; in 
Buzzard’s Bay ; Vineyard Sound ; very abundant in Massachusetts Bay ; 
Casco Bay; Bay of Fundy; and Gulf of Saint Lawrence. Fire Island, 
Long Island (S. L. Smith). 
Cyanea fulva Agassiz. 
Contributions, vol. iv, pp. 119, 162, 1862; A. Agassiz, Catalogue, p. 46 (no de- 
scription). 
Long Island Sound (L. Agassiz). Vineyard Sound (A. Agassiz). 
I have been unable to distinguish more than one species among the 
Cyanee of our waters, although they vary considerably in color, just as 
