4d Canadian Arctic Expedition, 1913-18 



pected. One exception which Nordgaard makes is that of Callopora spitzherg- 

 ensis, "hitherto obtained only in Spitzbergen waters," but the writer has 

 recently recorded this species from western Greenland (1919, p. 609) and, in 

 the present paper, from as far west as 161 degrees, 25 minutes west longitude, 

 northwestern Alaska. The species is therefore known to occur more than half 

 way around the pole and is unknown only in the region north of Siberia, in which 

 no studies have been made. In the "Bryozoa of the Crocker Land Expedition" 

 (1919), the writer added six species to the Greenland fauna, out of 50 reported 

 on, which were already knpwn to occur in arctic waters north of Europe. I am 

 therefore of the opinion that when our records of arctic bryozoa are fairly com- 

 plete for the entire region around the North Pole, we will find that practically 

 all of the true Arctic species are circumpolar in distribution. 



In the following report all the species taken by the Canadian Arctic Expe- 

 dition, 1913-18, were collected by Mr. Frits Johansen; those of the Diana 

 expedition were collected by Dr. A. P. Low and Commander Wm. Wakeham, 

 and those of the Neptune expedition by Mr. A. Halkett. For the sake of 

 brevity in recording, these will be referred to merely as "C.A.E," "Diana," 

 and "Neptune." A few other scattered records from far northern regions are 

 included. 



The species are all found in the Victoria Memorial Museum, Ottawa, 

 Canada. 



The localities where the specimens were collected, arranged in order from 

 west to east are as follows: — 



Western (Canadian Arctic Expedition, 1913-14-15) 



1. Station 20b, Grantley harbour, Port Clarence, Alaska, lat. 65 15' N., 

 long, 166° 15' W. 



2. Station 23, northeast of Icy Cape, Alaska, lat. 70° 24' N., long. 161° 25' W. 



3. Station 24, Point Barrow, Alaska, 71° 22' N., long, 156° 05' W. 



4. Station 27s, CoUinson Point, Camden bay, Alaska, long. 69° 59' N., long. 

 144° 50' W. 



5. Station 42c, west of Cockburn point. Dolphin and Union strait. North- 

 west Territories, lat. 68° 50' N., long. 115° 15' W. 



6. Station 43a, off Cockburn point, lat. 68° 50' N., long. 115° 15' W. 



7. Station 37&, Bernard harbour. Dolphin and Union strait, Northwest 

 Territories, lat. 68° 47' N., long, 114° 50' N. 



8. Station 37e, Bernard harbour. 



9. Station 416, Bernard harbour. 



10. Station 41c, Bernard harbour. 



11. Stapylton bay. Dolphin and Union strait, lat. 68° 55' N., long. 116° 30' W. 



Eastern {Diana Expedition, 1897; Neptune Expedition, 1904) , 



12. North Somerset island, district of Franklin, Northwest Territories, lat. 

 about 72° N., long. 95° W.. Neptune expedition, 1904. 



13. Richmond gulf, east side of Hudson bay, lat. about 57° N., long. 77° W. 

 A. P. Low, 1899. 



14. King George sound, Hudson strait, about 62° N., long, 73° W. Diana 

 expedition, 1897. 



15. Port Burwell, Ungava bay, Hudson strait, Quebec, about 60° N., long. 

 64° W. Neptune expedition, 1904. 



