572 



BULLETIN OF THE BUREAU OF FISHERIES. 



Halecium articuhsum 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. 358. 



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 SERTULARIID^. 



Sertularia pumila Linnaeus. 



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. Nutting. 



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, i to 8 

 fathoms, often on Halecium gracile; also on 

 floating Zostera, etc., and covered with Lafaea 

 cakara ta. "-Verrill. "Found . . . growing 

 in great quantities over seaweed dredged from 

 the bottom near Nobska Point." Nutting. 



Not to be distinguished from 5. complexa 

 Clarke . Nutting. 



Thuiaria thuja (Linnaeus). 



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 argcntea); Bumpus, 1898, p. 489 (Sertu- 

 laria argentea); G. M. Gray, in "Biological 

 Notes, No. i," 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 

 i 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), 7523 (many)*, 7523 

 bis*, 7524 (small branch)*, 7524 bis (many 

 clusters), 7525 bis (abundant on stones)*, 7527 

 (i branch)f, 7530 bis*, 7533 bis (many on 

 stones), 7534 (many stems on stones), 7534 bis 

 (very abundant), 7535 bis*, 7539 bis*, 7541 

 (numerous), 7545 (on stones)*, 7545 bis*, 7547 

 (few stems on Spisula shells)f, 7549*, 7550*, 

 7558 (on Verlus shells)*, 7562, 7563, 7572, 7608*, 

 7615*, 7663*, 7682, 7689 (fragments), 7722 (frag- 

 ments), 7724, 7725*, 7732, 7733, 7734, 7737, 



773 8 . 7739. 774i, 



7744*, 7747*. 



7752*. 7753* 



7755*. 775 6 (fragments)*, 7763*, 7766*. 7767*. 

 7768*, 7769*, 7770*, 7772*, 7773*, 7775*. 



Supplementary stations (1906): 7522, 7752, 

 (1907):* 7521, 7538, 7549, 7551, 7581, 7763, 7766, 

 7770,7775-7776.7780,7783; (1909): 7653 (frag- 

 ments), 7657 (dead stems), 7660 (fragments), 

 7668 (fragments), 7672 (fragments). 



Phalarope and Blue Wing stations*: i (few), 2, 

 4, 13, 51, 83, 108, 114, 115. 



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. 



