-•>•' l)l?<OFLAGELLAT>K — CITHARISTKS 



(h-iuhrr: L'l° S. H()' W.; ir S. 84° W.; Cape Verde Islands; 



Canaries; Caribbean Sea to 38° N. 74" W.; 41^ N. .')«-■ W. 

 Xorriiihrf. IK — li)" S. 31" W.; 4° N. ■]()'' W.; 26° N. 48° W. 



to 19° N. oH \V.; i2' N. 1)2" W.; 47" N. 41° W.; 36° N, 



14" W. to 84" N. 10" W 

 Ik'n-nihcr: 25" N. 52" W. to 22^ N. 5(i" W.; Caribbean Sea; 



Canaries; (iibraltar. 

 1899 Jiinuarii: area between the Canaries, Madeira and 85" N. 



9" W. 

 Fchniary: 82" N. 47° W. 

 April: 8H° N. 74° W. 

 Man: 85^ N. 75" W, 

 Juiw: 12" S. 9" W.; 4° S. 19° W. to 9" N. 25" \V.; 12" N. 



52° W. 

 Julij: 10° N. 2B° W 



Temperature: 23.5, mean of 129 obs., max. 28.3, min. 18.x. 



Salinity: 35.78, mean of 99 obs., max. 38.,54, min. 32.92. 



Plankton-type. Noted from the Mediterranean, Indian and 

 Pacific. It occurs in the tropical Atlantic, at least from 21° S., bet- 

 ween S. America and Africa, follows the Equatorial Current to the 

 north coast of S. America, into the whole Sargasso Sea and the Ca- 

 ribbean Sea, thence the Florida Current. From July to September 

 (maximum in August) it advances in the western Atlantic between 

 40° and 45° N. (rare specimens nearly to 50°). In the winter it 

 occurs from Gibraltar to the Canaries. — 1). 



CITHARISTES APSTEINII Schutt.i 

 (D. Peridinfien d. Plankton-expedition PI. V fig. 2-ii. 



1897 December: 28°--25° N. 51°— 50° W. 



1898 February: 28° N. 89° W. to 19" N. 52° W. 

 March: Azores to 29° N. 45° W.; Caribbean Sea. 



Apr-il: 19° N. 52° W. to 16° N. 56° W.; Caribbean Sea; N. 

 coast of San Domingo. 



Murray's & Whitting's data used. 



