Diaptomus

Diaptomus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Copepoda
Order: Calanoida
Family: Diaptomidae
Genus: Diaptomus
Westwood, 1836
Unidentified species of Diaptomus from the Great Lakes

Diaptomus is a genus of copepods with a single eye spot. It is superficially similar in size and appearance to Cyclops. However it has characteristically very long first antennae that exceed the body length. In addition, the females carry the eggs in a single sac rather than the twin sacs seen in Cyclops. It is a copepod of larger freshwater ponds, lakes and still waters.