EDITORIAL NOTE. 



The collections of Amphipoda procured in the trawls, dredges, and tow- 

 nets during the voyage of H.M.S. Challenger were placed in the hands 

 of the llev. Thomas R. R. Stebbing for examination and description in the 

 summer of 1882. From not long after that date up to the present time 

 Mr. Stebbing has been almost exclusively occupied in the work connected 

 with the preparation of this extensive and valuable Report, which will be 

 welcomed by all students of the Crustacea. 



There is the same uncertainty connected with the Amphipoda as with 

 several other groups of animals taken in the trawls and tow-nets, as to the 

 depths at which the specimens were captured. Some were undoubtedly 

 taken at or near the bottom, while others were as certainly taken in the 

 surface and subsurface waters, but with others again there is a great deal 

 of doubt. Although a record of the depths to which the nets were let down 

 was attached to the specimens, the naturalists of the Expedition did not 

 intend to convey the impression that the specimens necessarily came from 

 the depths indicated. 



This Report, which forms Part LXVII. and Volume XXIX. of the 

 Zoological Series of Reports, consists of 1774 pages of letterpress, with 

 212 Plates and a Map. The whole is bound up in three separate portions, 

 two of letterpress and one of Plates. 



The first Instalment of the Manuscript was received by me on the 5th 

 December 1885, and the last on the 30th November 1888. 



John Murray. 



Challenger Office, 32 Queen Street, 

 Edinburgh, December 5, 1888. 



