POLYCHAETE WORMS, PART 1 99 



ular cirri 3 pairs, foliaceous, curled forward, lateral to and enclosing 

 prostomimn and anterior part of body. Parapodia uniramous, with 

 lobes much reduced, with a few short acicular setae, with foliaceous 

 dorsal and ventral cirri. Paii' of foliaceous anal cirri. 

 Contains only one New England genus. 



Genus Travisiopsis Leviiisen, 1885 



Type (monotypy) : Travisiopsis lobifera Levinsen, 1885. 



Both species have the body short, cylindrical, slightly attenuated 

 at both ends, the posterior end evidently forming an effective swim- 

 ming organ. They are colorless or yellowish, almost transparent. 

 Prostomium conical, with a projecting median papilla or caruncle, 

 with a pair of ciliated nuchal organs. Tentacular cirri 3 pairs, 

 spoon-shaped, curled forward enclosing prostomium and anterior end 

 of body. Parapodia uniramous, with setal lobes only slightly pro- 

 jecting, with a few acicular setae. Dorsal and ventral cirri large, 

 leaflike, nearly square shaped in middle of body, becoming elongate- 

 lanceolate posteriorly. A pair of large anal cirri, spatulate, slender 

 basally, broadest distally, with a thickened hyaline rib in the middle. 



Key to the New England Species of Travisiopsis 



1. Nuchal organ encircling the median papilla or prostomial caruncle laterally 



and anteriorly (fig. 26a) T. lobifera 



Nuchal organ not extending anterior to caruncle (fig. 266) . . T. levinseni 



Travisiopsis lobifera Levinsen, 1885 



Figure 26o 



Travisiopsis lobifera Fauvel, 1923, p. 229, fig. S6,a-d; 1953, p. 139, fig. 71,a-d.— 

 St0p-Bowitz, 1948a, p. 57, fig. 44.— Dales, 1955, p. 442; 1957, p. 148, figs. 

 58, 59.— Berkeley and Berkeley, 1957, p. 577.— Tebble, 1960, p. 196, fig. 13a. 



Description. — Length up to 30 mm., width up to 3 mm., segments 

 21. Median papilla or caruncle oval. Nuchal organ consists of a 

 pair of lobes encircling the caruncle laterally and anteriorly and pro- 

 jecting posteriorly as a short free lobe (fig. 26a). 



Material examined. — Grampus (Bache) Station 101G6, off South 

 Carolina (32°33' N., 72°55' W., 100-0 meters, January 30, 1914); 

 Station 10209, north of Bahama Bank (27°57' N., 78°15' W., 100-0 

 meters, March 22, 1914). 



Distribution.- — Off Azores, Canaries, Arabian Sea, off Nova Scotia 

 to Bahamas, northeast Pacific (off Oregon to Lower California), 

 Indian Ocean, South Atlantic. Sm-face waters to 280 fathoms. 



