In connection with the investigations of a special Alaskan Salmon Commission the U.S. Fish Commission steamer Albatross established, during the summer of 1903, a series of more than 100 dredging and trawling stations, extending from the vicinity of Vancouver Island along the coast of British America and into Alaskan waters as far north and west as Shelikof Strait. The zoological collections were in charge of Prof. Harold Heath of Leland Stanford Junior University, to whom and to Dr. B.W. Evermann, I owe the opportunity of studying the annelids.