MARINE GAMMARIDEAN AMPHIPODA 6 



the Hancock Library and Mr. Jack Marquardt of the Smithsonian 

 Institution have been very helpful in obtaining references. Literature 

 published subsequent to December 1965 has not been incorporated. 

 The figures were redrawn largely from the literature and some of them 

 have been simplified as a means of providing standardization. Four 

 illustrators have assisted with the work over the years, Mr. L. R. 

 Hales, Mrs. D. McLaughlin and, especially, Miss Jacqueline M. 

 Hampton of the Beaudette Foundation; and Miss Naomi D. Mano- 

 witz of the Smithsonian Institution. They were partially supported 

 by grants from the National Science Foundation. 



Dr. D. E. Hurley of New Zealand Oceanographic Institute has 

 assisted my thinking with regard to the difficult family Lysianassidae 

 by letting me read his various manuscripts concerning the classifica- 

 tion of that family. Dr. E. L. Bousfield of the National Museum of 

 Canada kindly loaned the paratype of Oldevig's Haustorioides mun- 

 stemjelmi for this study. Numerous colleagues have helped with 

 friendly advice and encouragement and among those must be men- 

 tioned the foregoing plus Dr. Fenner A. Chace, Jr., Dr. Thomas E. 

 Bowman, and Dr. Olga Hartman. Dr. Richard Cowan, Dr. Donald 

 Squires, Dr. I. E. WaUen, and Dr. Raymond B. Manning have created 

 the ideal environment at the Smithsonian Institution for this work 

 to be brought to its conclusion. Portions of the final draft were com- 

 posed while the writer worked as a Smithsonian fellow to Bishop 

 Museum, Honolulu; and I must thank Dr. Roland W. Force, Director, 

 for providing the facilities and help of that Museum. 



This paper is dedicated to Mr. Clarence R. Shoemaker (1876-1958), 

 America's foremost student of Amphipoda. The frontispiece represents 

 two of the beautiful drawings he did. 



Status of Gammaridean Systematics 



More than 3300 species in about 670 genera are known currently 

 in the Gammaridea.* The rate of description of new species has 

 increased recently and will presumably exceed the average descrip- 

 tion of 40 per year that occurred between 1906 and 1956. Outside 

 of the Httoral north Atlantic, Arctic U.S.S.R., and the northwestern 

 Pacific, knowledge is highly incomplete. The magnificent work of 

 Sars (1895), supported by that of Chevreux and Fage (1925), brought 

 the west European fauna into definition at an early stage. Unfor- 

 tunately, the excellent taxonomic status of north Atlantic amphipods 



*About 130 genera and 850 species occur in nonmarine environments and most 

 are not included in this handbook. 



