NO. 9 MARINE INVERTEBRATES, ALASKA — MacGINITIE I79 



A single specimen of Puncturella noachina (Linnaeus) from 184 

 feet extends the range of the species to the Pacific side of the world. 



Over lo species belonging to the "Oenopota complex" were col- 

 lected. The species naaanensis, harpa, impressa, laevigata, and tenuili- 

 rata came from the rubble zone and down to 477 feet. Several of 

 these species are new to Arctic Alaska and some to the Pacific side 

 of the Arctic. Several species have not been identified. Egg capsules 

 of at least two species of Oenopota were taken in September and 

 October. The capsules contained embryo snails with shells. 



Class AMPHINEURA 



Although only two species of chitons were collected off Point Bar- 

 row, both species were often present in hauls from suitable bottom. 

 Both are new to Point Barrow, but have been known from the At- 

 lantic, the Atlantic-Arctic, and the Pacific. 



Symmetrogephyrus vestitus Broderip and Sowerby, represented by 

 42 specimens, came from depths of 138 to 741 feet. Although all 

 but the very tips of the valves are covered by the girdle, young bar- 

 nacles attach to these tips and foraminifers nestle in the depressions 

 formed at the junction of plates and girdle. 



The smaller Trachydermon albus (Linnaeus), the valves of which 

 are white on the inside but more often brown on the outside, appeared 

 in hauls from 120 to 522 feet. 



Class CEPHALOPODA 



Two species of octopuses and one species of squid were collected. 



On October 6, 1949, a single specimen of Benthoctopus hokkai- 

 densis (Berry), a gravid female, was taken at 216 feet. The body, 

 light orange on a cream background, was 57 mm. in diameter and 85 

 mm. long and the arms were 150 mm. long. This species was taken 

 off Japan by the Albatross and more recently by the Russians in the 

 Okhotsk Sea and Bering Sea. The specimen from Point Barrow 

 extends the range into the Arctic. 



On September 27, 1948, a juvenile and an adult of a species of 

 Cirroteuthis were taken with a dip net from the outer edge of an ice 

 cake that had stranded alongshore. These peculiar animals, which 

 resemble in shape a rag doll more than an octopus, were in about 6 

 feet of water, where they had obviously been carried by an upwelling 

 of deep water resulting from 3 days of ofifshore wind. Unfortunately, 

 the larger specimen was lost in transit and Dr. Pickford was unable 

 to identify the species from the juvenile. The larger specimen, mostly 



