66 COPEPODA — LARTDOCERA, LEUCKARTIA 



Temperature: 19.4, mean of 18 obs., max. 28, min. 11. 



Salinity: n6.-,-2 to 20.29. 



Plankton-type. Noted from the Mediterreanan, the North Sea 

 and the mouth of the Rio Negro (40° S.). It is a neretic form of very 

 wide distribution, from the mouth of the Congo to the southern 

 North Sea and from the Rio Negro to the S. of the Newfoundland 

 Ranks. — A% Nm.. 



LABIDOCERA ACUTIFRONS (Dana). 



1898 March: 11° N. 20° W.; 16° N. 18° W. 



Temperature: 20 to 24 6. 

 Salinity: 35. 20. 



Plankton-type. Noted from the tropical Pacific, western Me- 

 terranean and the Atlantic, 23° S. to 18° N. — S. (or Nt?) 



LABIDOCERA NERII (Kroyer). 



1898 March: 6°_N 22° W.; 7° N. 17° W. 



Temperature: 22 to 27.8. 

 Salinity: 35. 2.^. 



Plankton-type. Noted from the eastern Atlantic 2°— 8° N. 

 19° — 25° W., and from Gape Fini.sterre. — .S. (Nt?). 



LEUCKARTIA FLAVICORNIS (Claus). 



1898 March: 32° N. 32° W.; Azores; 45' N. 36° W.; 40° N. 56° W. 

 July: Azores. 

 August: 22° N..74° W. 

 September: 30° N. 35° W. 

 November: 34° N. 10° W. 

 December: 33° N. 38° W. 



Temperature: 19 i, mean of 8 obs, max. 27. s, min. 11. 

 Salinity: 3(5. 12, mean of 8 obs., max. 36.59, min. 34.4o. 

 Plankton-type. Noted from the Canaries, the Mediterranean 

 and the Tropical Pacific, west of America. — S. (D?) 



