74 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.48. 



Sta. 2173. July 21, 1884. Lat. 37° 57' N.; long. 72° 34' W. 

 Surf. temp. 71°. 4 specimens. 



Sta. 2105. November 6, 1883. Lat. 37° 50' N.; long. 73° 03' 50" 

 W. Surface. Surf. temp. 63°. 3 specimens. 



Sta. 2742. September 17, 1887. Lat. 37° 46' 30" N.; long. 73° 56' 

 30" W. Surf. temp. 69°. Many specimens. 



Sta. 2098. October 1, 1883. Lat. 37° 40' 30" N.; long. 70° 37' 30" 

 W. Surf. temp. 72£°. 20 specimens. 



Sta. 2229. September 11, 1884. Lat. 37° 38' 40" N.; long. 73° 

 16' 30" W. Surf. temp. 75°. 8 specimens. 



Sta. 2426. June 4, 1885. Lat. 36° 01' 30" N.; long. 74° 47' 30" 

 W. Surf. temp. 71°. 2 specimens. 



This extremely long list shows that this species is very common in 

 the West Atlantic off the United States between lat. 40° and 38° N., 

 going north to about lat. 42}° N. and southward to near lat. 36° N. 

 Besides, the collection contains a specimen from the Gulf of Gascogne 

 (Exped. Caudari) and determined as EupTiausia pellucida Dana. 



The temperature at the surface is noted at each station, because 

 this species, according to my experience from other sources, frequently 

 lives near the surface. It is larger than the following form, and its 

 most important characters have been pointed out in the Monaco 

 paper quoted. 



Distribution. — E. Tcrdhnii is known from the western half of the 

 Mediterranean and besides it is common in the east Atlantic, going 

 southward at least to lat. 36° 13' N. and northward to lat. 51° N.; 

 a single specimen has been taken on the west coast of Norway. 



11. EUPHAUSIA AMERICANA H. J. Hansen (1911). 



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

 p. 23, fig. 6. 



Occurrence. — Taken by the Albatross at six stations in the West 

 Atlantic : 



Sta. 2195. August 5, 1884. Lat. 39° 44' N.; long. 70° 03' W. 

 Surf. temp. 74°. 1 specimen. 



Sta. 2569. August 31, 1885. Lat. 39° 26' N.; long. 68° 03' 30" W. 

 Surface. Surf. temp. 75°. Numerous specimens. 



Sta. 2585. September 19, 1885. Lat. 39° 08' 30" N.; long. 72° 17' 

 W. Surf. temp. 73°. 1 specimen. 



Sta. 2174. July 21, 1884. Lat. 38° 15' N.J long. 72° 03' W. 

 Surf. temp. 76°. 15 specimens. 



Hyd. 138. February 9, 1884. Caribbean Sea. Lat. 10° 51' 30" 

 N.; long. 67° 01' 40" W. Surface. 11 specimens. 



Remarks. — While dealing with the large material of Ewphausia 

 IcroTinii in the collection of the United States National Museum 

 I examined the male copulatory organs of specimens of various sizes 



