-•58° 



170° 



BERING SEA 



Pribilof Islands 



■56° 



170° 



-I 



Figure 6.--Bottom temperature distribution. May 1959. Shading indicates area ol negative temperatures. Dark dots indicate stations 



where fauna and temperature data were collected. 



In 1959 the station pattern (fig. 6) was cov- 

 ered only once and was reduced considerably. 

 The entire northern portion had to be omitted 

 due to unfavorable weather conditions. As in 

 1958, the groups of organisms comprising each 

 catch were recorded; however, samples were 

 preserved from only a small number of sta- 

 tions. 



Upon the vessel's return the samples were 

 sorted into general groups. Tentative generic 

 or specific identifications were made for the 

 gastropods, pelecypods, decapod crustaceans, 

 and the nnajority of the echinoderms. After 

 the collections were categorized as specifically 

 as possible, representative samples were 

 sent to systematists for specific identification 

 or verification. 



Samples of the mollusks of the 1958 survey 

 (exclusive of the nudibranchs) were sent to 

 Mrs. Nettie MacGinitie. Samples of the 1959 

 mollusks (exclusive of the nudibranchs) were 

 sent to Dr. Myra Keen. With the aid of their 

 identifications, the author subsequently identi- 

 fied the remainder of the gastropods and 

 pelecypods. 



The author identified the decapods. The 

 identifications of the species of brachyuran 

 and anomuran crabs have been verified by 



comparison with the collections in the U. S. 

 National Museum. Considerable time was de- 

 voted to the identification of the hermit crabs. 

 The most recent work on the genus Pagurus 

 (Makarov, 1938) has resulted in some confu- 

 sion in synonymy. Upon the recommendations 

 of Drs. Fermer A.Chace, Jr. and L. B. Holthuis, 

 the nomenclature employed in the species iden- 

 tification of specimens of the genus Pagurus from 

 these surveys is according to Benedict (1892, 



Figure 7.--Dredge used in bottom invertebrate sampling. 



