AMPHIPODA COLLECTED AT THE 



ARCTIC LABORATORY, OFFICE OF 



NAVAL RESEARCH, POINT 



BARROW, ALASKA, BY 



G. E. MacGINITIE^ 



By clarence R. SHOEMAKER 

 Associate in Zoology, Smithsonian Institution 



The material upon which this report is based was taken in the 

 vicinity of Point Barrow, Alaska, at the United States Naval Research 

 Station, from 1948 to 1951. Arctic species naturally predominate, but 

 some North Atlantic and North Pacific species have intruded into 

 the area, and one Antarctic genus, Prothaumatelson, is present. The 

 range of several species has been extended northward, and of others, 

 eastward or westward. 



The collection contains 24 families, 64 genera, and 100 species of 

 which 9 are new to science. There is also one new variety. The 

 family Caprellidae is not included. The bulk of the collection is the 

 result of the energetic work of Prof. George E. MacGinitie, while 

 J. Bohlke and Dr. Ira L. Wiggins added valuable material in 1950 

 and 1 95 1. All distances given as miles out are measured from the Point 

 Barrow base. 



In the literature cited under each species there is always a reference 

 to a published figure if there is one. The length of a species is meas- 

 ured from the front of the head to the end of the uropods. The plan 

 for the designation of the appendages is that used by T. R. R. Steb- 

 bing in Das Tierreich, I, Amphipoda: gnathopods i and 2, and 

 peraeopods i to 5. 



Suborder GAMMARIDEA 



Family LYSIANASSIDAE 



ANONYX NTJGAX (Phipps) 



Anonyx nugax Sars, 1891, p. 88, pi. 31. — Stephensen 1923, p. 78; 1944b, p. 26. 

 Anonyx nugax -{-A. lagena Stebbing, 1906, p. 54. 



Material collected. — Many specimens of all sizes were taken from 

 beach down to 522 feet, from 1948 to 1951. 



1 This paper has been published in part through a grant from the Office of 

 Naval Research, through Johns Hopkins University. 



SMITHSONIAN MISCELLANEOUS COLLECTIONS, VOL. 128, NO. 1 



