Onychodiaptomus

Onychodiaptomus is a genus of copepods in the family Diaptomidae, containing the following species:

Onychodiaptomus birgei
Onychodiaptomus hesperus M. S. Wilson & Light, 1951
Onychodiaptomus louisianensis M. S. Wilson & W. G. Moore, 1953
Onychodiaptomus sanguineus
Onychodiaptomus virginiensis

Onychodiaptomus louisianensis, a species endemic to the United States, is listed as Data Deficient on the IUCN Red List.