NO. 9 MARINE INVERTEBRATES, ALASKA — MacGINITIE 1 37 



the beach after certain storms. One specimen collected on October 4, 

 1949, was a bright peach color from the tenth parapodium posteriorly. 

 This color, due to eggs showing through, extended well out into the 

 parapodia. The quick-freeze method of preservation was 100 percent 

 effective with this worm. In the literature there is no record of this 

 invertebrate from low water, where it obviously occurs at Point 

 Barrow. Also, there is no mention of its being commensal, but the 

 smooth scales suggest that it may be, and if it is, it may well be com- 

 mensal with the lugworm Arenicola glacialis, which also lives near 

 shore. 



Thirty specimens of the sigalionid Pholoe mimita (Fabricius), up 

 to 25 mm. in length, were taken from Eluitkak Pass and from 100 to 

 741 feet, and two from a screen trap at 37 feet on April 11, 1950. 



Six species of phyllodocids that were new to Arctic Alaska were 

 taken: 4 specimens of Eteone barbata (Malmgren) from Eluitkak 

 Pass, 37 feet, and 162 feet; 23 E. flava (O. Fabricius) from depths 

 up to 453 feet, all but one from stony bottom ; 38 E. longa (Fabricius) 

 from Eluitkak Pass and at depths of no to 453 feet and 2 from 10 

 feet from a small area of sandy-muddy bottom about 300 feet from 

 shore (the latter were killed by the low salinity, 6.4 parts per thou- 

 sand, of the surface water as they were brought up) ; 4 £. spetsber- 

 gensis Malmgren from 10 feet (sandy-muddy bottom — also killed by 

 low salinity), 175 feet (April 11, 1950), 213, and 216 feet; 46 Eumida 

 minuta (Ditlevsen) from 100 to 453 feet (28 specimens from the 

 latter depth) ; and two very small specimens of Mystides borealis 

 Theel from sessile animals on a small rock from 217 feet. Eumida 

 minuta was known previously only from a few scattered records. Its 

 abundance at Point Barrow indicates that it has probably been over- 

 looked because of its small size, for it occurs among bryozoans and 

 hydroids and growths on rocks. 



The most abundant species of phyllodocid was Phyllodoce groen- 

 landica Oersted, which was taken at Eluitkak Pass, from the beach 

 after storms, and from 10 to 741 feet. Specimens up to 310 mm. in 

 length were taken. This species also was killed when it was brought 

 up through surface water of low salinity. 



Twenty-seven specimens of the hesionid Castalia aphroditoides 

 (O. Fabricius) were taken at Eluitkak Pass and from depths of 125 

 to 453 feet. An additional specimen, in the process of regenerating 

 its posterior end, was taken through the ice on February 14, 1950, at 

 149 feet. White eggs, apparently ripe, showed through the integument 

 of specimens taken on August 10, 1948. This hesionid was flesh- 

 colored on the anterior end and parapodia but the central portion of 



