POLYCHAETE WORMS, PART 1 51 



during the middle and latter part of August in Massachusetts (Woods 

 Hole region, Bumpus, 1898b). 



Material examined. — Massachusetts (Cape Cod, Vineyard Sound, 

 off Martha's Vineyard, Nantucket Sound), Rhode Island, Long Island 

 Sound, North Carolina, Georgia, Louisiana, Florida, in low water to 

 9 fathoms. 



Distribution. — Massachusetts (Cape Cod) to Brazil, Gulf of 

 Mexico from Florida to Texas, Norway to Mediterranean, Adriatic, 

 Iranian Gulf, Red Sea, Indian Ocean, Japan, China, off west and 

 south Africa. In low water to 80 fathoms. 



Sthenelais Umicola (Ehlers, 1864) 



Figure ll,c-e 



Sthenelais gracilis Verrill, 1879, p. 166. — Sumner, Osburn, and Cole, 1913, p. 



619.— Hartman, 1942b, p. 28, figs. 32-35; 1959a, p. 120. 

 Sthenelais emertoni Verrill, 1879, p. 166; 1881, pp. 314, 319, 320, pi. 7, figs. 1, 2.— 



Miner, 1950, p. 310, pi. 101. 

 Sthenelais Umicola Whiteavcs, 1901, p. 84.— Fanvel, 1923, p. 113, fig. 42,a-,g.— 



Treadwell, 1948, p. 13, fig. 36.— Miner, 1950, p. 310, pi. 101.— Tebble, 1955, 



p. 76.— Clark, 1960, p. 14.— Day, 1960, p. 289.— Eliason, 1962, p. 229. 



Description. — Length up to 100 mm., wddth including setae up to 

 4 mm., segments up to 200 or more. Color: elytra translucent, 

 colorless. 



Biology." — Found at low water on sandy bottom (Kittery, Maine). 

 Dredged on sandy and muddy bottoms. Tossed on the shore in large 

 numbers during storms and eaten by cod and flounders (Mcintosh, 

 1900). Found in stomach of haddock (Georges Bank, April 1953, 

 R. Wigley). 



Material examined. — -Maine (Sea Point near Kittery, low water), 

 Massachusetts (Quisset, Gloucester, Georges Bank), Connecticut 

 (Noank), Rhode Island (Newport), Long Island Sound (Fishers 

 Island), North Carolina, in low water to 42 fathoms. 



Distribution. — Gulf of St. Lawrence to North Carolina, Norway 

 to Mediterranean, Adriatic, West and South Africa. Low water to 

 420 fathoms. 



Genus Leanira Kinberg, 1855 



Type (monotyp}^): Leanira quatrefagesi Kinberg, 1855. 



Both species are burrowing forms, similar in shape to Sthenelais. 

 Elytra numerous pairs, tliin, translucent, smooth, without tubercles. 

 Palps and tentacular segment as in Sthenelais. Notopodia with fringe 

 of cirriform papillae (parapodial stylodes), with numerous setae curv- 

 ing dorsally; notosctae simple, capillary, finely spinous. Neuropodia 

 also with parapodial stylodes; neurosetae mostly compound, with 



