COPEPODA — MIRACIA 71 



August: 56° N. 23° W. to 56° N.-38° W., rare to common; 



72°--74° N. 26°— 31° E., rare. 

 September: 56° N. 24° W. to 53° N. 48° W., rare; 68° N. 6° 



W., not rare; 66° N. 3° W. rare between 300 and 167 



metres; 61° N. 1° E., rare in a haul from 100 metres; 



72°_73° N. 19° E., rare. 

 October: 52° N. 14° W. to 56° N. 38° W., midway common. 

 November: 51° N. 21°— 28° W.; 47° N. 51° W., rare. 



Temperature: 19.o, mean of 192 obs., max. 27.6, min. O.s. 



Salinity: 35. so, mean of 153 obs., max. 37.63, min. 31.96. 



Plankton-type. Noted from the tropical Pacific (108° W. Equ. 

 GiESBR.), the Mediterranean, the North Sea and the Skagerak. This 

 species has of all copepods the widest distribution in the Atlantic, 

 or from 31° S. to 74° N., , entering in Desmo-, Styli- and Tricho- 

 plankton,. but from the general distribution and the mean tempera- 

 ture it is apparent that it belongs essentially to the Styli-plankton. 

 — It is worthy of note that this copepod was by far more abun- 

 dant in 1898 than in 1899. In March 1 898 it scarcely reached north 

 of 50° but it appeared in April at Iceland, in August at Spitzbergen. 

 In the last month it crossed the Denmarks Sound for E. Greenland 

 and was in September seen N. of Iceland. — S. [D. T.) 



MIRACIA EFFERATA Dana. 



1897 December and 



1898 January: 7° N. 22° W.; 12° N. 50° W.; 18° N. 46° W.; 32° 



N. 33° W. 



March: area between 1° S. 15° W., 10° N. 20° W., 14° N. 

 24" W. and 6° N. 22° W.; 14°— 17° N. 50°— 47° W.; Carib- 

 bean Sea. 



April: 12° N. 51° W.; 27° N. 75° W. 



May: 11°— 13° N. 52°— 51° W. 



July: 41° N. 60° W. 



September: 8° N. 25° W.; 27° N. 36° W. 



October: 32° N. 74° W. 



November: 19° N. 58° W.; 42° N. 64° W. 



1899 June: 12° N. 52° W. 



Temperature: 24.6, mean of 23 obs., max. 28, min. I6.2. 

 Salinity: 35.8?, mean of 14 obs., max. 36. 50, min. 35. 



