POLYCHAETE WORMS, PART 1 73 



Eteone longa (Fabriclus, 1780) 



Figure 16e 



Eteone cinerea Webster and Benedict, 1884, p. 705, pi. 1, figs. 1-5. — Miner, 1950, 



p. 316, pi. 102. 

 Eteone robtista Verrill and Smith, 1874, p. 204. — Sumner, Osburn, and Cole, 1913, 



p. 616.— Hartman, 1942b, p. 39, figs. 52-56.— Procter, 1933, p. 138, fig. 31. 

 Eteone longa Fauvel, 1923, p. 172, fig. 62,a-d; 1933, p. 16.— Thorson, 1946, p. 59, 



fig. 26.— Wesenberg-Lund, 1953, p. 32.— Pettibone, 1954, p. 234, fig. 27h.— 



Uschakov, 1955, p. 101, fig. 8.— Rasmussen, 1956, p. 34, figs. 10-12.— Clark, 



1960, p. 17. 

 Eteone arctica Treadwell, 1948, p. 24, fig. lid. 

 Eteone arctica var. roberiiana Berkele,y and Berkeley, 1954, p. 459. 



Description. — Length up to 160 mm., width up to 5 mm., seg- 

 ments up to 200. Dorsal cirri small, not much larger than the para- 

 podial lobe, longer than wide or as long as mde, nearly S3anmetrical, 

 thick, flattened, bluntly conical. Color, in hfe: white to light gray 

 with scattered brown specks, pale or dark green; color, preserved: 

 yellowish, reddish or greenish brown, iridescent, with darker colored 

 dorsal cirri, may have dark blue iridescence with deep velvety blue 

 dorsal cirri. 



Biology. — Found at low water in mud flats, muddy sand, sand, 

 gravel, under stones, in eelgrass. May be found rather high inter- 

 tidally. Dredged on bottoms of sandy mud, sand and shells, and 

 various combinations of soft mud, sand, gravel, pebbles, rocks, shells, 

 and worm tubes. Numerous specimens were present at one station 

 in the oceanographic fouling studies (from Cape Cod Bay). Some 

 specimens were filled with yolky eggs in April (Rye Harbor and 

 Hampton Harbor, New Hampshire, 1954). According to Thorson 

 (1946, p. 59), the eggs are spawned in irregular slimy lumps; the 

 larvae have a relatively short planktonic existence. Rasmussen 

 (1956) observed the early developmental stages in Denmark; adults 

 may be found swimming activel}^ near the surface; spawning occurs 

 in April and May. 



Material examined. — Gulf of St. Lawrence (St. Lawrence estuary, 

 Gaspe Bay, Bay of Chaleurs, Anticosti Island, Madeleine Islands, 

 low water to 60 fathoms), Newfoundland, Nova Scotia, New Bruns- 

 wick (St. Andrews), Maine (Machias Bay, Rocldand, Boothbay 

 Harbor region, Bay of Fundy, Sea Point near Kittery; Albatross III, 

 41°32' N., 65°57' W., 1954, R. Wiglcy), New Hampshire (Rye Har- 

 bor, Hampton Harbor near entrance to Blackwater River, Newcastle, 

 Hilton Park on Dover Point), Massachusetts (Massachusetts Bay, 

 Cape Cod Bay, low water to 55 fathoms), off Chesapeake Bay (Alba- 

 tross Station 2111, 35°09' N., 74°57' W., 938 fathoms, 1883). 



