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THE AMERICAN NATURALIST [Vol. XL 



Narragansett Bay, abundant in February, March, and April; 

 Charlestown Pond, July. Females in egg were found in both 

 the summer and winter tows, though the largest number of speci- 

 mens in copula were taken in March and April. The species 

 was found in great abundance in shallow water and not, as Sars 

 reports of the Norwegian specimens, confined to depths of from 

 twenty to a hundred fathoms. 



Harpacticus chelifer (Miiller) 



1776. Cyclopti chelifer Miiller. 



1834. Harpacticus chelifer Milne-Edwards. 



1880. Harpacticm chelifer Brady. 



1903. Harpacticus chelifer Sars. 



Charlestown Pond, July. 



Idya furcata (Baird) 



1837. Cyclops f meatus Baird. 



1863. Tishe furcata Claus. 



1864. Idya furcata Boeck. 

 1880. Idya furcata Brady. 

 1903. Idya furcata Sars. 



Narragansett Bay, spring. This is a very common Norwegian 

 copepod and is "ubiquitous in the British seas" to quote Dr. 

 Brady. It is also found in the :Mediterranean, the Red Sea, 

 and in New Zealand. 



Argulus laticauda Smith 



Metanauplius of Caligus or Lepeophtheirus 



Jatuuiry 13 on the east side of the upper part of 



