[733] INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 439 
f fig. 1. Dynamena pumila Lamouroux, Bulletin Soc. Phil., vol. iii, p. 184. 1812 ; 
Agassiz, Contributions, vol. iv, pp. 326, 355, Plate 32, 1862; A. Agassiz, Cata- 
logue, p. 141, figs. 225, 226. 
New Jersey to the Arctic Ocean; Finmark to Great Britain and 
France. Great Egg Harbor, New Jersey, on /ucus; abundant on the 
shores of Long Island Sound, Vineyard Sound, and northward, between 
tides. 
SERTULARIA CORNICINA Verrill. (p. 408.) 
Dynamena cornicina (pars) McCready, op. cit., p. 204, 1859; A. Agassiz, Catalogue, 
p- 142, 1865. 
Charleston, South Carolina, to Vineyard Sound. Not uncommon in 
Vineyard Sound, 1 to 8 fathoms, often on Halecitum gracile ; also on float- 
ing Zostera, ete., and covered with Lafoéa calcarata. 
This species somewhat resembles the preceding, but the hydra-cells 
are more distant, longer, more prominent, and freer, while the end is 
distinctly bent outward, making the lower side concave in the middle ; 
aperture strongly bilabiate, often appearing tridentate. 
HYDRALLMANIA FALCATA Hincks. (p. 408.) 
Brit. Hyd. Zoéph., p. 273, Plate 58, 1868. Sertularia falcata Linné, Syst. Nat., ed. 
x, 1758; ed. xii, p. 1809; Plumularia falcata Lamarck, Anim. sans Vert., ed. ii, p. 
160; Johnston, Brit. Zodph., p. 90, Plate 21, figs. 1, 2. Sertularia lenerissima 
Stimpson, Mar. Invert. Grand Manan, p. 8, 1853. 
Long Island Sound to the Arctic Ocean; northern shores of Europe 
to the British Channel. Common near New Haven, and off Thimble 
Islands, 4 to 8 fathoms; Watch Hill, Rhode Island; Vineyard Sound, 
and off Gay Head, 6 to 20 fathoms; Massachusetts Bay, abundant ; 
very abundant in Casco Bay and Bay of Fundy, low-water to 110 fath- 
oms; Mingan Islands, Labrador. Saint George’s Bank, very abundant, 
20 to 150 fathoms, (S. I. Smith, A. 8. Packard). 
Tubularina. 
NEMOPSIS BACHEI Agassiz. (p. 454.) 
Mem. Amer. Acad., vol. iv, p. 289, figure, 1849; Contributions, vol. iv, p. 345; 
A. Agassiz, Catalogue, p. 149, figs. 227-231. Nemopsis Gibbesi McCready, op. cit., 
p- 58, Plate 10, figs. 1-7, 1859. 
Charleston, South Carolina, to Nantucket. 
BoOUGAINVILLIA SUPERCILIARIS Aggasiz. Plate XXXVII, fig. 276. 
(p. 328.) 
Contributions, vol. iv, pp. 289, 291, figs. 37-39, Plate 27, figs. 1-7, 1862; A. Agas- 
siz, Catalogue, p. 153, figs. 232-240. Hippocrene superciliaris Agassiz, Mem. 
Amer. Acad., vol. iv, p. 250, Plates 1-3, 1849. 
Newport, Rhode Island, to Bay of Fundy ; ? Greenland. 
MARGELIS CAROLINENSIS Agassiz. (p. 450.) 
Contributions, vol. iv, p. 344, 1862; A. Agassiz, Catalogue, p. 156, figs. 241-248. 
Hippocrene Carolinensis McCready, op. cit., p. 164 (separate copies, p. 62), Plate 
10, figs. 8-10. 
Charleston, South Carolina, to Vineyard Sound. Wood’s Hole, at 
surface, evening. 
