no. 2065. THE CRUSTACEA EUPHAUSIACEA— HANSEN. 75 



and was surprised to find that some smaller specimens which I had 

 deemed to be casual or local varieties, had the two main processes of 

 the copulatory organs quite different from those in large, typical 

 specimens. The result was that the smaller but adult specimens 

 proved to be a species hitherto overlooked, and I named it E. ameri- 

 cana, because the first specimens observed had been taken off the 

 United States and belong to the National Museum. In the above- 

 quoted paper I pointed out the most important specific characters 

 of the three species with the margin of the lobe of first antennular 

 joint pectinate, viz, E. Jcrohnii Brandt, E. americana, and E. eximia 

 H. J. Hansen; in a future work on the Monaco collection a more 

 detailed description with a number of figures of the two first-named 

 species will be given. 



Distribution. — The localities above show that in the Northwestern 

 Atlantic this species goes northward to about lat. 39f ° N., that it 

 was found together with E. Tcrohnii between lat. 39f° and 38J° N., 

 and that it has besides been taken in the Caribbean Sea. In the 

 paper on the Schizopoda collected by the Swedish Antarctic Expe- 

 dition (1913) I showed that this expedition had gathered E. ameri- 

 cana at no less than 20 places in the line from lat. 33° 23' N.; long. 

 18° 39' W. to lat. 32° 15' S.; long. 50° 14' W., furthermore that the 

 Copenhagen Museum possesses it from the middle of the North 

 Atlantic, namely, lat. 33° N.; long. 47° W. 



12. EUPHAUSIA EXIMIA H. J. Hansen (1911). 



1912. Euphausia eximia H. J. Hansen, Mem. Mus. Comp. Zool., vol. 35, No. 4, 

 p. 230, pi. 7, figs. 2a-2«7. 



Occurrence. — Of the material received in unnamed condition 

 specimens from three Albatross stations in the Pacific are at hand: 



Sur. 26. April 3, 1888. Lat. 0° 30' S.; long. 88° 37' 30" W. Sur- 

 face. Light clouds, 7.35 p. m. Surf. temp. 80°. Many specimens. 



Sta. 2808. April 4, 1888. Lat. 0° 36' 30" S.; long. 89° 19' W. 

 Surf. temp. 79°. 6 specimens. 



Sur. 16. March 1, 1888. Lat. 4° 21' S.; long. 81° 59' W. Surface. 

 Moonlight. Surf. temp. 74°. 1 specimen. 



Among the animals recorded by Ortmann in 1894 as E. pellucida 

 Dana the following specimens belong to E. eximia: 



Off Guaymas (about lat. 28° N.; long. 111° W.). 500 fathoms. 

 8 specimens. 



Fifty miles south of Guaymas (about lat. 27i°N.; long. 111° W.). 

 700-0 fathoms. 1 specimen. 



Sta. 3434. April 21, 1891. Lat, 25° 29' 30" N.; long. 109° 48' W. 

 Surface. Surf. temp. 70°. 1 specimen. 



Sta. 3416. April 11, 1891. Lat. 16° 32' 30" N.; long. 99° 42' 40" 

 W. 300-0 fathoms. 4 specimens. 



