84 COPEPODA SAPPHIRINA 



April: 47° N. 31° W.; 31" N. 75° W. 

 May: 48° N. 30° W.; 41° N. 54° W. 



Temperature: 15. r,, mean of 12 obs., max. 22, min. 11. 

 Salinity: 35.6i, mean of 9 obs., max. 36.59, min. 34 le. 

 Plankton-type. Noted from the west of Magellan Straits to 

 6° N., off Gibraltar, in the Mediterranean and off Scotland. — .S. 



SAPPHIRINA GEMMA Dana. 

 1898 March: 7°— 11° N. l7°-20° W. 



Temperature: 24.6 to 27.8. 



Salinity: 35. 20 to 35.25. 



Plankton-type. This species has been found south of the 

 Cape of Good Hope, in the Mediterranean and the Pacific. The 

 plankton in which 1 found the above specimens was Desmo-piank- 

 ton. — D. 



SAPPHIRINA NIGROMACULATA Glaus. 



1898 February: 5°— 6° S. 9°— 12° W. 



March: 3° N. 16° W.; 36° N. 29° W. 



June: 25° N. 57° W. 



August: 49° N. 23° W.; 44° N. 42° W.; 41° N. 58° W. 



October: Azores. 



Temperature: 23.9, mean of 9 obs., max. 282, min. 17.3. 



Salinity: 33.58, mean of 8 obs., max. 36.59, min. 20.29. 



Plankton-type. Noted from the Mediterranean and the Paci- 

 fic. According to the above data it has the distribution of the 

 Desmo-plankton, but seems to keep more to the coasts than to the 

 open sea. It follows the other Desmo-species in August to the area 

 between 40°- 50° N. — D. 



SAPPHIRINA OPALINA Dana. 



1898 August: 14° N. 70° W., very rare. 



Temperature: 27.5. 

 Salinity: 34.72. 



