438 nmuPORT OF COMMISSIONER OF FISH AND FISHERIES. [732] 
tal end with the thicker and shorter polypiferous segment, and bearing 
one or two nematophores on the median line, which may be either near 
the middle or toward the proximal end. Hydrothece broad, sub- 
cylindrical, a little longer than broad, with a slightly flaring, even rim ; 
the axis forms an angle of about 45° with the branches; the free 
part of the distal side is about half the length of the proximal side. Ne- 
matophores relatively large, usually three with each hydrotheca: one on 
each side, shorter than the hydrotheca, trumpet-shaped, with a round, 
cup-like opening, narrowed below, nearly sessile; another, similar in 
form, placed toward the proximal end of the segment, inclined forward, 
and nearly reaching the base of the hydrotheca. Gonothece not ob- 
served. 
Off Gay Head, 8 to 10 fathoms, among ascidians; Vineyard Sound, 
8 fathoms. 
This species is related to P. Catharine Johnston and P cornucopie 
Hincks, from the English coast. The former differs in having opposite 
branches, smaller and more elongated nematophores, etc.; the latter 
agrees in having alternate branches, but the nematophores are smaller, 
longer, and more slender, and the joints of the branches are different. 
This is the first genuine species of Plumularia that has been discov- 
ered on the New England coast. 
SERTULARIA ARGENTEA Ellis and Solander. Plate XX XVII, fig. 280. 
(p. 408.) 
Zobphytes, p. 38; Johnston, Brit. Zobph., ed. ii, p. 79, Plate 14, fig. 3, Plate 15> 
figs. 1-3; Hincks, Brit. Hydr. Zoédph., p. 268, Plate 56; A. Agassiz, Catalogue, 
p. 144. 
New Jersey to the Arctic Ocean; northern shores of Europe to Great 
Britain and France; low-water to 110 fathoms. Great Egg Harbor, 
New Jersey, in April; common and of large size in Long Island Sound, 
near New Haven, Thimble Islands, and at Faulkner’s Island, 1 to 8 
fathoms ; Watch Hill, Rhode Island; Vineyard Sound, 1 to 15 fathoms, 
very common; abundant in Casco Bay; Bay of Fundy; Nova Scotia 
coast; and Gulf of Saint Lawrence, low-water to 110 fathoms. Saint 
George’s Bank (S. I. Smith). 
SERTULARIA CUPRESSINA Linné. (p. 408.) 
Syst. Nature, ed. x, 1758; ed. xii, p. 1308; Pallas, Elench. Zooph., p. 142, 1766; 
Johnston, op. cit., p. 80, Plate 16, figs. 1,2; Hincks, op. cit., p. 270, Plate 57 ; 
A. Agassiz, Catalogue, p. 143. 
New Jersey to the Arctic Ocean ; northern coasts of Europe to Great 
Britain and France. Great Egg Harbor, New Jersey, with reproductive 
capsules, in April; Vineyard Sound, not common; Massachusetts Bay ; 
Casco Bay; Bay of Fundy, in tide-pools and from 1 to 110 fathoms, 
common. Saint George’s Bank (S. I. Smith). Absecom Beach, New 
Jersey (Leidy). 
SERTULARIA PUMILA Linné. Plate XXXVII, fig. 279. (p. 327.) 
Syst. Nature, ed. x, 1758; ed. xii, p. 1306; Pallas, Elench. Zooph., p. 130; Johnston, 
op. cit., p. 66, Plate 11, figs. 3,4; Hincks, Brit. Hydr. Zoéph., p. 260, Plate 53, 
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