Copepoda Calanoida Diaptomidae. Key to the genera Heliodiaptomus, Allodiaptomus, Neodiaptomus, Phyllodiaptomus, Eodiaptomus, Arctodiaptomus and Sinodiaptomus. (=Guides to the Indentification of the Microinvertebrates of the Continental Waters of the World; 5).