no. 2065. THE CRUSTACEA EUPHAUSIACEA— HANSEN. 81 



Sur. 26. April 3, 1888. Lat. 00° 30' N.; long. 88° 37' 30" W. 

 Surface. 7.35 p. m. Surf. temp. 80°. Very large number of speci- 

 mens. 



Furthermore, Ortmann in 1894 has also recorded this species from 

 three stations at the Galapagos: (He named the species E. gracilis 

 Dana, but, as I pointed out in 1905, E. gracilis Dana is unrecognizable, 

 and, besides, certainly not identical with E. gracilis G. O. Sars. I 

 suppressed the name gracilis, naming the species described and fig- 

 ured by Sars, E. tenera.) 



Sta. 3412. April 4, 1891. Lat. 1° 23' N.; long. 91° 43' W. Sur- 

 face. Surf. temp. 82°. 27 specimens. 



Sta. 3419. April 3, 1891. Lat. 0° 18' 40" N.; long. 90° 34' W. 

 Surface. Surf. temp. 82°. Numerous specimens. 



Sta. 2628. March 26, 1891. Lat. 0° 13' N.; long. 84° 52' W. 

 200-0 fathoms. 4 specimens. 



Distribution. — The wide distribution of this fine and very slender 

 species in the tropical Atlantic, the Indian Ocean, and some parts of 

 the Pacific has been dealt with in the Harvard paper. Supplementary 

 details on its distribution in the Indian Ocean and the Atlantic have 

 been published, respectively, by Tattersall (1912) and myself (1913). 



20. EUPHAUSIA PACIFICA H. J. Hansen (1911). 

 Plate 1, figs. 2a-2g. 



1911. Euphausia pacifica H. J. Hansen, Bull, l'lnst. Ocean. Monaco, No. 210, 

 p. 28, figs. 10, A and B. 



1912. Euphausia pacifica H. J. Hansen, Mem. Mus. Comp. Zool., vol. 35, No. 

 4, p. 241, pi. 7, figs. 5a-56. 



Occurrence. — This species is at hand from 24 localities (not includ- 

 ing those of Ortmann for his E. splendens Dana — see below), all in the 

 boreal or northern temperate Pacific; but as some of the localities 

 are nearer to northeastern Asia, while the majority are found near 

 America, from Alaska to near the southern end of California, I divide 

 the localities into two groups, and as the line of separation between 

 them the meridian of longitude 170° W. is taken, because it runs 

 through the middle of Bering Strait: 

 A. American localities. 



Sta. 4753. October 1, 1905. Off Bushy Point, Alaska. Lat. 

 55° 41' 30" N.; long. 131° 46' 12" W. 150-0 fathoms. 10 

 specimens. 



Sta. 4760. May 21, 1906. Lat. 53° 53' N.; long. 144° 53' W. 

 300-0 fathoms. 5 specimens. 



Sta. 4759. May 20, 1906. Lat. 53° 05' N.J long. 138° 31' W. 

 300-0 fathoms. 1 specimen. 



Sta. 4758. May 19, 1906. Lat. 52° 02' N.; long. 132° 53' W. 

 300-0 fathoms. 2 specimens. 



59758°— Proc.N.M.vol.48— 14 6 



