THE 



AMERICAN NATURALIST 



FRESH-WATER COPEPODA OF MASSACHUSETTS 

 A. S. PEARSE 



In her excellent review of the Crustacea of New Eiiulaiid, M 

 Rathbun (:05) lists nine species of frcsh-uatcr (()im|h.(1s ] 

 Massachusetts, as follows: — 



? Hetcrocope sp. Diaptonms leptopufi Forbes. 



Cyclops vernalis Fischer. Cyclops viridis insectus Forbes. 



Cyclops bicuspidatus Claus. Cyclops albidus (Jurine). 



Cyclops serrulatus Fischer. Cyclops prasinus Fischer. 



Cyclops phaleratus Koch. 



As her paper cites the original description of each of these speci 

 and the authority for its occurrence in Massaclnisetts, these ])oii 

 need not be taken up here. Th<' occiirn'ncc of Il(Mcr(.<o|)e 

 America is doubtful and it cannot itropcrly he iiH liidcd on t 

 evidence that Cragin ('S3) offers. 



To the above list 1 am now able to add the follouitin-: - 



Eurytemora affinis Poppe. Epischura mn^^,n i..^,tl^< u. sp. 



