CLADOCERA — EVADNE 35 



Cladocera. 



EVADNE NORDMANNI LoviLx.' 



(Ivongl. Sv. Vetensk. Akad. Handl. 1835 pag. 1, PI. 1, II.) 



1898 April: b(f N. 3^ E. 



May: 48" N. 26° W.; English Channel; Faroes, common; Shet- 



lands to Norway, 58°-60° N. 3°— 5° E. 

 June: 48° N. 17° W.; S. of Iceland; Faroes; Scotland to the 



Shetlands and to xNorway (62° N. 2° 30' E.). 

 July: W. and S. of Iceland; 59°— 62° N. 23°— 0° W. 

 August: S. of Iceland; between Iceland and the Faroes; Shet- 



land.s to the E. of Scotland. 

 September: Faroes; N. of Scotland; between Ireland and 



Rockall ; 72° N. 19° E. 



1899 May: 51° N. 14° W., very rare; 60° N. 3° W. to 58° N. 9° E. 



as a rule very common. 

 June: 51° N. 20° W., rare; 62° N. 2° E., common. 

 July: 62° N. 0° W., not common. 

 August: 72°— 73° N. 26°— 31° E.; 56° N. 23° W. to 55° N. 



9° W., not rare. 

 September: 68° N. 6° W.; 56° N. 17 W., common. 



Temperature: 9.-, mean of 8 obs., max. 12.8, min. 8 (only 

 such samples considered as contained this species abundantly). 



Salinity: 34.i'». mean of 7 obs., max. 35.47, min. 31.83. 



Plankton-type. Found in the Gulf of Guinea, the Faroe Chan- 

 nel and on the Newfoundland Banks (Hansen, Ergebn. d. Plankton 

 Exp. G. d. pag. 9), in the North Sea and the whole Baltic (Aurivil- 

 Lius). It seems to have the same distribution in the Eastern and 

 Northern Atlantic as other forms of the Styli-type, advances to Ice- 

 land and through the Faroe Channel into the North Sea and towards 



* Ostenfeld's data used. 



