140 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I28 



and one orbiniid, Scoloplos armiger (Muller) (19 specimens), both 

 new to Arctic Alaska, were taken. 



Four species of spionids, all new to Arctic Alaska, were taken 

 rather sparingly. 



The cirratulid, Chaetosone setosa Malmgren, which is yellowish in 

 life, was taken from 120 to 741 feet. It is new to Arctic Alaska. The 

 more abundant Cirratulns cirratus (Miiller) was dredged at Eluitkak 

 Pass and from 80 to 453 feet. The integument of this worm varies 

 from cream to yellowish but, with the red of the blood and the green 

 of internal organs showing through, the general effect is a mixture 

 of green, red, and cream ; the cirri of the head are cream except where 

 flushed with blood and the body cirri are also cream with two red 

 lines caused by the flowing of two streams of blood. It is new to 

 Arctic Alaska. 



Nine specimens of the greenish-colored Brada inhabilis (Rathke) 

 were dredged from 120 feet (September 15, 1948), 125, 453, 522, and 

 741 feet. Twenty-four specimens of the drab Brada villosa (Rathke), 

 always somewhat covered with adhering sand, were washed ashore 

 and two specimens were dredged from 175 and 162 feet. Nine speci- 

 mens of Flabelligera affinis Sars were taken at depths ranging from 

 no to 741 feet, and five washed ashore. In life this species is green, 

 with a body so soft that it appears almost gelatinous. All these 

 flabelligerids are new to Arctic Alaska. 



A total of 17 specimens of the beautiful flesh-pink Scalibregma 

 inflatum Rathke, new to Arctic Alaska, were collected. The largest 

 ones, up to 100 mm. in length, were washed ashore on October 16, 

 1949. Four small ones were dredged during the summer of 1949, at 

 420, 175, and 477 feet. Fauvel (1927) states that this species is 

 found in sand or mud at a depth of 12 to 24 inches. At this depth, 

 only small specimens or larger specimens that were near the surface 

 could be dredged from the sticky mud at Point Barrow. During the 

 winter of 1950, eight specimens were dredged or taken with bottom 

 samplers at depths of 138 to 185 feet, indicating that these worms had 

 been washed from the muddy bottom nearer shore and then de- 

 posited with the mud at a greater distance from shore. 



Two specimens of the whitish opheliid Ammotrypane breviata 

 Fillers, 6 to 7 mm. in length, were dredged, one at 217 feet, and the 

 other at 175 feet. This worm had been taken from the South Orkney 

 and Falkland Islands and from Kaiser-Wilhelm II Land, but there 

 was only one other record (East Greenland) from the Northern 

 Hemisphere. Another opheliid, Travisia carnea Verrill, new to Arctic 



