186 



Note. — Prof. Forbes, to whom advance sheets of the portion oo 

 Copepocla were sent, writes me that he somewhat questions the 

 identity of the Minnesota species of Diaptomus referred to D. 

 leptopus with the species for which that name was proposed. I do 

 not know of any facts casting doubt upon the reference, but wish 

 to call the reader's attention to the susforestion of Prof. Forbes. 



