POLYCHAETE WORMS, PART 1 83 



Material exa^^iined. — Maine (U.S. Fish Commission Station 360, 

 42°03' N., 69°22' W., 106 fathoms, 1879), Massachusetts (Georges 

 Bank, 19-66 fathoms; Cape Cod, Provincetown, Wellfleet Harbor, 

 Orleans, Barnstable; Woods Hole region, Nantucket Sound, West 

 Falmouth Harbor, vStony Beach, Nobska, Eel Pond, Woods Hole 

 Harbor) . 



Distribution. — Off Maine to New Jersey. Low water to 106 

 fathoms; swarms at surface. 



Genus NotophyUinn Oersted, 1843 



Type (designated by Bergstrom, 1914, p. 76): Notophyllum viride 

 Oersted, 1843; =N. j olio sum (M. Sars, 1835). 



Both species have the body linear, slightly attenuated anteriorly 

 and posteriorly, convex dorsally, flattened ventrally. Prostomium 

 suboval, with 2 large eyes with lenses, with 4 short thick frontal 

 antennae and a longer median antenna between the eyes. A pair of 

 ciliated nuchal epaulettes posterior to prostomium, more or less lobu- 

 lated (fig. 176). Tentacular cirri 4 pairs on 3 segments, 1 pair lateral 

 to prostomium (first segment reduced dorsally), 2 pairs on segment 2, 

 fourth pair on segment 3 above the first normal ventral cirrus. Dorsal 

 cirri large, about twice as wide as long, platelike, subreniform in shape, 

 imbricated (superficially resembling polynoids). Ventral cirri large, 

 oval, posterior to neuropodia. Parapodia subbiramous, notopodia 

 represented by small acicular lobe with internal aciculum on lateral 

 sides of cirrophores of dorsal cirri ; with or without few simple capillary 

 setae (fig. lie). Neuropodia with fanshaped group of compound 

 setae; blades tapered to capillary tips. 



Key to the New England Species of Notophyllum 



1. Paired nuchal epaulettes simple or hilol^ed. Dorsal cirri cover middorsum. 



N. foliosum 

 Each of paired nuchal epaulettes consisting of 4-7 or so lobes (fig. 176). 

 Dorsal cirri leave narrow strip of middorsum uncovered. 



N. americanum 

 Notophyllum foliosum (Sars, 183.5) 



Figure 17e 



Notophyllum foliosum Fauvel, 1923, p. 170, fig. 16,a-e; 1933, p. 16. — Hartman, 

 1948, p. 18, fig. 3,d-/.— Wcsenberg-Lund, 1950a, p. 10, pi. 1, fig. 4.— Uschakov, 

 1955, p. 95.— Banse, 1959, p. 42G.— Uschakov and Wu, 1959, p. 24.— Clark, 

 1960, p. 17. 



Description. — Length up to 55 mm., width up to 4 mm., seg- 

 ments up to 115. Color, in life: greenish grey with green cirri 

 bordered with brown; in alcohol: brownish or greenish. 



Biology. — ^Dredged on bottoms of mud, gravel, rocks with large 

 barnacles. 



