142 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 22 



Genus NOTOPROCTUS Arwidsson, 1907 



Notoproctus pacificus (Moore) 1906 



Lumbriclymene pacifica Moore, 1906, pp. 246-248, pi. 12, figs. 40-42. 

 Notoproctus pacificus Moore, 1923, pp. 238-239. 

 Berkeley and Berkeley, 1952, pp. 56-57, figs. 1 17, 1 18. 



First described from Chatham Strait, Alaska, in 282-293 fms, this 

 species was recorded off Santa Catalina Island in abyssal depths (Moore, 

 1923, p. 239). Geographic and bathymetric ranges are extensive, with 

 the known range limited to the northeast Pacific Ocean in shallow 

 (65-71 fms) to abyssal (2196-2228 fms) depths. 



Genus NICOMACHE Malmgren, 1865 

 Nicomache lumbricalis (Fabricius) 1780 



Nicojnache carinata Moore, 1906, pp. 242-246, pi. 11, figs. 36-39; pi. 



12, figs. 43-44. 

 Moore, 1923, p. 227. 



This species occurs in southern California in basin depths (Moore, 

 1923, p. 227) and more widely from cosmopolitan areas. Tubes are 

 attached to stones, externally covered with silt and internally somewhat 

 horny. There are 2 preanal asetigerous segments. The pygidium is sur- 

 rounded by 14 to 21 short, subequal cirri. 



Genus LUMBRICLYMENE Sars, 1872 



Lumbriclymene lineus, new species 

 (Plate 15, figs. 1, 3) 

 The type specimen comes from Santa Catalina Basin (Sta. 5935) 

 and others are from Tanner Basin. The body is very slender and atten- 

 uate; it measures about 30 mm long and less than 1 mm wide, and 

 consists of 19 setigerous segments. Segmental nodes and the head region 

 are dark reddish brown, whereas other parts are pale to nearly white. 

 The first 4 segments have thick, single spines in neuropodia ; they are 

 yellow and slightly curved acicular. The anterior end is smoothly rounded 

 above and has a pair of J-shaped nuchal slits in which the shorter anterior 

 stem is directed outward and at an angle of about 110° to the long, 

 posteriorly directed stem. Segments 1 to 3 resemble each other in that 

 all have long internodes, and similar setal components (Plate 15, fig. 1). 



