316 



University of California Publications in Zoology [Vol. 23 



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6 • 







Northern limit 



San Francisco 

 Aleutian Isls.* 

 Arctic Alaska* 

 Aleutian Isls. 

 Bering Sea* 

 Sitka, Alaska* 

 Bering Sea* 

 Humboldt County 

 Aleutian Isls.* 

 British Columbia 

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 Kadiak, Alaska 

 Kadiak, Alaska 

 Bering Sea 

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 Aleutian Isls. 

 Aleutian Isls.* 



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