We wish to thank Dan Gotshall (Sea Challengers) for providing many of the photographs used in this guide. Michael Kelly provided underwater photographs of blackeye goby, cabezon and painted greenling. Thanks also to Bob Behrstock for the photographs of coho and chinook salmon, bristlemouth and northern lampfish, Hal Genger for the tubenose poacher, Peter Wilkinson for the steelhead, and Terry Roelofs for the coastal cutthroat trout. Dr. Tim Mulligan (Department of Fisheries, Humboldt State University) was generous in providing access to fresh specimens collected during field trips of his courses. These specimens were the basis of a number of the photographs taken by the junior author. Dr. Gerald Allen (Forestry Department, Humboldt State University) kindly provided access to the facilities of the McLean Forestry Computer Laboratory. This guide could not have been completed without the pioneering work of George Allen, Dan Gotshall , and Roger Barnhart on the fishes of Humboldt Bay.