POLYCHAETE WORMS, PART 1 165 



Material examined. — INIassachiisetts (Albatross III, 41°21' N., 

 67°59' W., 1955, R. Wigley; Woods Hole region. Vineyard Sound, 

 Naushon Island, Lackeys Bay, Nonamesset Island, Nobska, North 

 Falmouth, Nantucket Sound; Cape Cod, Provincetown, Wellfleet 

 Harbor, Barnstable), Rhode Island (Newport), New Jersey (Raritan 

 Bay), Maryland (Assateague Island in Chincoteague Bay), low water 

 to 18 fathoms. 



Distribution. — English Channel to Santander, Mediterranean, 

 Massachusetts (Cape Cod) to Mai\yland (Chincoteague Bay), Florida, 

 southern California, Mexico, Phihppine Islands, Australia, New 

 Zealand, northeastern Tasmania, South Africa, India. In low v,"ater to 

 55 fathoms; surface. 



Nereis {Neanthes) siiccinea (Frcy and Leuckart, 1817) 



Figures 44,a-e; 45,a-d 



Nereis limbata Webster, 1879, p. 235, pi. 6, figs. 70-75; 1886, p. 130, pi. 6, figs. 21, 

 22.— Verrill, 1881, pp. 296, 300, 308, 317, 321, pi. 5, fig. 3.— Webster and 

 Benedict, 1884, p. 718.— Andrews, 1891a, p. 284.— Wilson, 1892, p. 361.— 

 Bumpus, 1898a, p. 485; 1898b, p. 58; 1898c, p. 850.— Mead, 1900, p. 308.— 

 Wilson, 1900, p. 351.— Lillie and .Just, 1913, p. 147.— Sumner, Osburn, and 

 Cole, 1913, p. 621.— Hoagland, 1919, p. 574.— Treadwell, in Cowles, 1930, 

 p. .342.— Miner, 1950, p. 322, pi. 105.— Pratt, 1951, p. 330, fig. 454.— Nicoll, 

 1954, p. 69, fig. 4.— Costello, et al., 1957, p. 83. 



Nereis (Neanthes) succinea Fauvel, 1923, p. 340, fig. 135 (part); 1936c, p. 312.— 

 St0p-Bovvitz, 1948a, p. 62.— Berkeley and Berkeley, 1953, p. 847; 1954, p. 45; 



1958, p. 402.— Day, 1953, p. 425; 1957, p. 78; 1960, p. 321.— Newell, 1954, p. 

 334.— Banse, 1954, p. 160, figs. 1-14.— Tebble, 1955, p. 94, figs. 9-10.— 

 Rasmussen, 1956, p. 59. — Amos, 1957, p. 3.— Fauvel and Rullier, 1957, p. 75; 



1959, p. 523.— Clark, 1981, p. 214. 



Neanthes succinea Hartman, 1938a, p. 79; 1944a, p. 339, pi. 16, figs. 4-6; 1944c, 

 p. 17; 1945, p. 17, pi. 3, figs. 1-2; 1951, p. 45.— Wesenberg-Lund, 1958, p. 27: 

 1962, p. 78.— Hartmann-Schrcider, 1959, p. 142. 



Description. — Length up to 190 mm., width up to 7 mm., segments 

 up to 160. Tentacular cirri slender, tapering, longest reach setigcrs 

 3-8. Parapodia differing much in form from anterior to posterior end. 

 Parapodia of anterior region (fig. 44(i) with 3 notopodial ligules, the 

 upper one largest, conical; the lower one smaller; the middle or pre- 

 setal one still shorter. Neuropodium with setigerous lobe, a longer 

 postsetal ligule, and a conical lower ligule. Dorsal cirri do not extend 

 beyond or only slightly beyond the ligules; ventral cirri shorter than the 

 ligules. 



The parapodia change gradually in form in the middle region. In 

 the posterior region the parapodia (figs. 446, 456) difi"er markedly in 

 form: the notopodium with the upper dorsal ligule elongated, strap- 

 like, flattened, obliquely truncate distally, with the dorsal cirrus in a 

 terminal position; middle notopodial ligule rudimentaiy or lacking; 

 lower one short, conical. Neuropodium similar to anterior region 



