864 P. T. CLEVE, ON THE ORIGIN OF >GULF-STREAM WATER.» 



December. From 48° N. 40= W. to 45^ N. 66' W. 



I have Seen some specimens in a collection from the west of 

 South Africa, at 20= S. 2= E. . • 



This species prevails in the spring in the area between the 

 Azores and the English Channel, has in July advauced to 

 59' N., in August to Iceland and the Färöe Channel. It reached 

 in September the north coast of Iceland. Rare specimens linger 

 during the winter in the Färöe Channel. On the west side this 

 infusorium occurs on the Newfoundland banks and along the 

 American coast and seems to have spread from the Irminger 

 Sea. It has been only once seen as far to the south as at 32' 

 N. 74° W., probably derived from the southward American 

 current. 



Undella eaudata (OsTF.) ^) 



1898 March. At 41= N. 21= W. and 49= N. 33= W. 

 April. At 41" N. 19= W. and 49= N. 22= W. 



May. At 50= N. 14=— 22= W., 41= N. 59= W. and 42= N. 

 61= W. 



June. At 42= N. 50= W. 



August. Along 48°— 49^ N. from 20=— 30= W. 



October. Along 57°— 58= N. from 25=— 32 W. 



November. At 0=21' S. 31=23' W. The area between 

 45° N. 7° W., 49= N. 32° W. and 58° N. 29° W. From the 

 south of Iceland to the Färöes, 63° N. 19° W. to 62= N. 8= W. 



December. At 30° N. 16° W. — Along 49= N. from 20° 

 to 35= W. W. of the Färöes. At 44° N. 57° W. 



1899 January. At 33° N. 15° W. From 49= N. 20= W. 

 to 45° N. 49° W. 



June. At 14°— 15= S. 6°— 5° W. 



Chsetoeeros skeleton ScHÜTT. -) 



1898 January. The North Equatorial current at 7° N. 

 53° W. At 43° N. 16° W. and 46° N. 11= W. 



') Ostenfeld's data for Tintinnus caudatus used. 

 ^) Ostenfeld's data used. 



