no. 2065. THE CRUSTACEA EUPHAUSIACEA— HANSEN. 71 



March 7, 1891, thus near lat. 6° 21' 1ST.; long. 80° 41' W. 3 speci- 

 mens. 



Sta. 3409. April 3, 1891. Lat. 0° 18' 40" 1ST.; long. 90° 34' W. 

 Surface. Surf. temp. 82°. 2 specimens. 



Remarks. — Some of the specimens are uncommonly large. A 

 male taken March 7, 1891, measures 13.5 mm. in length; a female, 

 from Narborough Island, is even 16 mm. long, and a male from the 

 same locality, 14 mm. 



Distribution. — The species is known only from the east Pacific, 

 between lat. 35° 31' N. and lat. 5° 57*' S. 



Genus EUPHAUSIA Dana. 



In the revision of the order (1911) I enumerated 27 species and 

 divided them into four groups. Seventeen species are represented 

 in the collection. 



10. EUPHAUSIA KROHNn Brandt. 



1851. Thysanopoda krohnii' Brandt, Krebse, in Middendorff's Sibirische Reise, 



vol. 2, pt. 1, p. 127. 

 1863. Euphausia mulleri Claus, Zeitschr. wiss. zool., vol. 13, p. 444, pis. 28-29, 



figs. 29-45. 

 1882. Thysanopoda bidentata G. O. Sars, Forh. Vidensk. Selsk. Christiania for 



1882, No. 18, p. 50, pi. 1, figs. 11-14. 

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



p. 22, with 2 text-figures. 



Occurrence. — This North Atlantic species has been taken at the 

 following places: 



Sta. 69. September 1, 1877. Lat. 42° 44' N.; long. 62° 43' W. 

 Surf. temp. 65$°. 2 spscimens. 



Sta. 2528. July 13, 1885. Lat. 41° 47' N.; long. 65° 37' 30" W. 

 Surf. temp. 69°. 6 specimens. 



Sta. 2575. September 3, 1885. Lat. 41° 07' 1ST.; long. 65° 26' 

 30" W. Surf. temp. 71°. 1 specimen. 



Sta. 2045. July 31, 1883. Lat. 40° 04' 20" INT.; long. 68° 43' 

 50" W. Surf. temp. 72°. 2 specimens. 



September 14, 1872. Georges Bank region (lat. 42°-40° N.; long. 

 66°-69° W.). 3 specimens. 



Sta. 2047. July 31, 1883. Lat. 40° 02' 30" N.; long. 68° 49' 40" 

 W. Surf. temp. 72°. 2 specimens. 



Sta. 1111. August 22, 1882. Lat. 40° 01' 33" N.; long. 70° 35' 

 W. Surf. temp. 72°. Numerous specimens. 



Sta. 2044. July 31, 1883. Lat. 40° 00' 30" N.; long. 68° 37' 20" 

 W. Surf. temp. 72°. 3 specimens. 



Sta. 2213. August 22, 1884. Lat. 39° 58' 30" N.; long. 70° 30' 

 W. Surf. temp. 71°. 11 specimens. 



Sta. 1114. August 22, 1882. Lat. 39° 58' N.J long. 70° 38' W. 

 Surf. temp. 72°. 1 specimen. 



