4d Canadian Arctic Expedition, 1913-18 



been recorded from the real cold deep sea area of Davis strait as defined by 

 him. Those species reported from the warm area of Davis strait, whose affinities 

 in the light of present records appear to be boreal and sub-boreal, are not 

 included in the present paper. For consideration of these, refer to H. J. Hansen, 

 The Danish Tngolf Expedition, Crustacea, Malacostraca, Vol. 3, Pt. 5, 1916. 

 Likewise the many species from boreal Alaska are omitted, since these have 

 been exhaustively discussed by Harriet Richardson, Bull. 54, U. S. National 

 Museum, 1905, Isopods of North America. 



The table here given indicates the general extent of the distribution of the 

 Isopoda of Arctic North America. No attempt has been made to represent the 

 detailed distribution of the species since this has been given in the text, nor to 

 discuss the intricacies of the overlapping boreal faunas. All doubtful species 

 are omitted, only representatives of the well established Arctic fauna being 

 tabulated. 



The following areas are represented in the successive columns of the table: 



East Asia — This column indicates those species known to also inhabit 

 Plover island, eastern Arctic Siberia, Kamchatka, the Commander islands, and 

 northern coast of Japan. 



Bering Sea — This column cites those species reported from the Bering Sea. 

 The extensive explorations in this area by the United States Government have 

 enriched our Arctic fauna by several new species, and also secured a vast mass 

 of evidence sufficient to correlate the Asiatic and West American faunas. 



West Coast North America — This column indicates what seems to be the 

 general meridional distribution of the true polar species along the great stretch 

 of coast line beginning just south of the winter line of floating ice on the Alaskan 

 shore, embracing the Aleutian chain, the coast of southeastern Alaska, the 

 Canadian coast and associated islands, and that of the United States as far 

 south as Monterey bay, California. 



Arctic Alaska — This includes the Alaskan west coast north of Hagemeister 

 island, and the entire Arctic coast. 



Arctic Canada — This vast area includes the entire Arctic coast of the 

 Canadian mainland, — also the large northern archipelago, eastward including 

 Grantland, Ellesmereland, and Baffinland, southward to the mouth of Ungava 

 bay. 



Baffin Bay — Davis straits — This column indicates those species definitely 

 recorded either from the Baffin bay or the real cold deep sea area of Davis 

 straits. 



East Coast North America — This column is similar to that of "West Coast 

 North America" and indicates the general meridional distribution of the polar 

 species along the eastern coast of Labrador, Newfoundland, southeastern 

 Canada, and the United States as far south as New Jersey. 



West Greenland — It has seemed desirable to indicate the fauna of West 

 Greenland separately from that of East Greenland, though it is interesting to 

 note that many of the Arctic Isopoda occur on both shores; however, we find 

 seven species recorded from West Greenland which are not known from East 

 Greenland, likewise we find one species, Pleuroprion frigidum Hansen, known 

 only from the type locality in eastern Greenland. 



Iceland and the Faeroes. — This region includes the Arctic species recorded 

 from the harbors of Iceland and the Faeroes and the adjacent seas. The com- 

 prehensive explorations by the Danish government have contributed a very 

 thorough knowledge of this area. 



Europe — ^This includes the entire arctic coast of Europe, also the boreal 

 area of the Scandinavian coast, and that of the British Isles from which Arctic 

 species have been recorded. 



West Siberia — This column lists those species recorded from the eastern 

 Kara sea and adjacent Siberian coast. 



