66 COPEPODA — LABIDOGERA, LEUCKARTFA 



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



Salinity: 36.52 to 20.29. 



Planlfton-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. — Nt, Nm. 



LABIDOCERA ACUTIFRONS (Dana). 



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



Temperature: 20 to 24 6. 

 Salinity: 35.2o. 



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: 35.25. 



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

 19°— 25° W., and from Cape Finisterre. — .S. (Xf?J. 



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 4, mean of 8 obs., max. 27. «, min. 11. 

 Salinity: 36. la, 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':'j 



