572 
BULLETIN OE THE BUREAU OF FISHERIES. 
Halecium articulosum Clarke. 
Nutting, 1901, p. 357 (not recorded for the region 
as here defined); Hargitt, 1908, p. 106. 
Off Gay Head, July 15, 1907, on carapace of a 
small spider crab. — Hargitt. 
Halecium tenellum Hincks. 
Nutting, 1901, p. 357. 
Woods Hole. — Nutting. Crab Ledge, 1908. — 
Hargitt. 
Halecium beani (Johnston). 
Nutting, 1901, p. 358. 
“Found growing on bivalve shells at Woods 
Hole.” 
Halecium gracile Verrill. 
Verrill and Smith, 1873, p. 729,328, etc. (sp. 
nov.); Nutting, 1901, p. 338. 
Buzzards Bay and Vineyard Sound. — Verrill. 
Said to be “frequently found growing in pro- 
fusion on the under side of stones, in tide pools, 
and attached to oysters, dead shells, etc., in 
shallow waters, both in the sounds and estua- 
ries. ’ ’ Also said to occur on piles and floating 
timbers. 
Halecium sp. undet. 
Fish Hawk stations: 7615, 7675, 7771, 7778, 7781. 
(Specimens too poor to be determined specifi- 
cally.) 
Family SbrturariidaJ. 
Sertularia pumila Linnseus. 
A. Agassiz, 1865, p. 141 ( Dynamena pumila), 
Verrill and Smith, 1873, p. 732, 327, etc.; 
Nutting, 1901, p. 359; 1904, p. 51. 
Nantucket. — L. Agassiz. Vineyard Sound. — 
Verrill. Generally distributed in the shallow 
waters of the region, occurring on Fucus and 
other seaweeds and on piles. Dredged by the 
Survey, on a few occasions, in Vineyard Sound, 
at depths of 4 to 12 fathoms. 
Fish Hawk stations: 7535 bis*, 7750*, 7767*, 
7771*. Supplementary stations: 7551 (1907), 
7763 (1907). 
Phalarope station 63*. 
Sertularia versluysi Nutting. 
Nutting, 1904, p. 53; Hargitt, 1908, p. 112. 
Prof. Nutting records this species as occurring 
upon gulf weed, but not specifically for this 
locality. Prof. Hargitt has found it on some 
floating sargassum, collected by Mr. Edwards 
in Vineyard Sound, August 30, 1906. 
Sertularia gracilis Hincks. 
Verrill, 1875, p. 43; Nutting, 1904, p. 57. 
Taken on sargassum at Hyannis. — Verrill. A 
specimen in the National Museum from Nau- 
shon . — N utting . 
Sertularia cornicina (McCrady). 
Verrill and Smith, 1873, p. 733, 408, etc.; Nut- 
ting, 1901, p. 359 ( Sertularia cornicina)', p. 360 
(S. complexa)', 1904, p. 58. 
“Not uncommon in Vineyard Sound, 1 to 8 
fathoms, often on Halecium gracile; also on 
floating Zostera, etc., and covered with Lafoea 
calcarata.” — Verrill. “Found . . . growing 
in great quantities over seaweed dredged from 
the bottom near Nobska Point.” — Nutting. 
Not to be distinguished from A. complexa 
Clarke . — Nutting. 
Thuiaria thuja (Linnseus). 
Nutting, 1901, p. 364; 1904, p. 62. 
Off Nantucket. (Collected by V. N. Edwards; 
identified by Nutting). 
Thuiaria argenta (Ellis & Solander). [Chart 22.] 
Verrill and Smith, 1873, p. 732, 408, etc. (Ser- 
tularia argentea)', Bumpus, 1898, p.489 ( Sertu- 
laria argentea ); G. M. Gray, in “Biological 
Notes, No. 1,” 1900 (Sertularia argentea)'. Nut- 
ting, 1901, p. 363; 1904, p. 71; Sumner, 1910, 
fig. 9. 
Abundant in Vineyard Sound, particularly in 
the eastern half; in Buzzards Bay, scarce and 
chiefly restricted to the lower half ; dredged in 
1 to 20 fathoms, predominantly on gravelly or 
stony bottoms devoid of mud. — Survey. Col- 
lected on piles at Vineyard Haven.* 
Fish Hawk stations: 7521*, 7521 bis (many), 
7522 bis (many clusters), 7323 (many)*, 7523 
bis*, 7524 (small branch)*, 7524 bis (many 
clusters), 7523 bis (abundant on stones)*, 7327 
(1 branch))', 7530 bis*, 7533 bis (many on 
stones), 7334 (many stems on stones), 7534 bis 
(very abundant), 7535 bis*, 7539 bis*, 7541 
(numerous), 7543 (on stones)*, 7545 bis*, 7547 
(few stems on Spisula shells)f, 7549*, 7550*, 
7558(on Venus shells)*, 7562, 7363, 7372, 7608*, 
7615*, 7663*, 7682, 7689 (fragments), 7722 (frag- 
ments), 7724, 7725*, 7732, 7733, 7734, 7737, 
7738. 7739- 774U 7744*. 7747*. 7752*. 7753*. 
7755*. 7756 (fragments)*, 7763*, 7766*, 7767* 
7768*, 7769*, 7770*, 7772*, 7773*, 7773*. 
Supplementary stations (1906): 7522, 7752, 
(1907):* 7521, 7338, 7549, 7551, 7581, 7763, 7766, 
7770.7775. 7776,7780,7783; (1909): 7633 (frag- 
ments), 7637 (dead stems), 7660 (fragments), 
7668 (fragments), 7672 (fragments). 
Phalarope and Blue Wing stations*: 1 (few), 2, 
4, 13. 5U 8 3, Io8 , 114, ii5- 
Apparently for the most part empty perisarcs are 
to be found during the summer months. Mr. 
Gray states that living specimens are taken 
from early winter till April, and that ripe 
gonophores are present in March and April. 
Bumpus likewise records the taking of these 
! hydroids, “laden with eggs,” in March. 
