REPORT OF COMMISSIONERS OF INLAND FISHERIES. 71 



Clavella uncinata (O. F. Miiller). 



On cod and haddock. Cox Ledge. (Rathbun's List.) 

 Calanus finmarchicus (Gunnerus). 



Narragansett Bay. January. This species, so well known as 

 the food of the pollock whale, appeared in winter tows 

 only. 

 Pseudocalanus elongatus (Boeck). 



Narragansett Bay. January and February. 

 Centropages hamatus (Lilljeborg). 



Narragansett Bay. Common throughout the year. 

 Pseudodiaptomus coronatus Williams. 



Narragansett Bay and Charlestown Pond. Abundant through- 

 out the year. Many pairs in copula were taken during 

 the summer in Mill Cove, Wickford. 

 Our attention has been called to the similarity between this species 

 and P. pelagicus Herrick from the Gulf of Mexico, and we admit the 

 striking resemblance in general features. We suspect that Herrick's 

 description and drawings, upon which we depended and which cer- 

 tainly cannot be harmonized with our specimens, may represent a 

 species of which ours is a northern variety. A comparison of the 

 type specimens would be necessary to settle this point. We may note 

 in passing that the structure which Herrick describes as a spermato- 

 phore is, in our specimens, a reduced egg-sac containing two, occa- 

 sionally three, eggs. 



Temora longicornis (O. F. Miiller). 



Narragansett Bay. Abundant throughout the year. 

 Eurytemora americana Williams. 



Narragansett Bay. Throughout the year. 

 Eurj-temora hirunoides (Nordquist). 



Narragansett Bay and Charlestown Pond. 

 Eur}'temora herdmani Thompson & Scott. 



Wickford. Abundant in summer. 

 Acartia tonsa Dana. 



Narragansett Bav and Charlestown Pond. Summer. 



