''Ergasilus'' is a genus of

copepod Copepods (; meaning "oar-feet") are a group of small crustaceans found in nearly every freshwater and saltwater habitat (ecology), habitat. Some species are planktonic (inhabiting sea waters), some are benthos, benthic (living on the ocean floor) ...

crustaceans occurring in both the ocean and

fresh water Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the term specifically excludes seawater and brackish water, it does include ...

, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second

antenna Antenna ( antennas or antennae) may refer to: Science and engineering * Antenna (radio), also known as an aerial, a transducer designed to transmit or receive electromagnetic (e.g., TV or radio) waves * Antennae Galaxies, the name of two collid ...

e are modified into prehensile pincers. Male gill lice are free-living. Species include: *''

Ergasilus anchoratus ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' Markevich, 1946 *'' Ergasilus arthrosis'' L. S. Roberts, 1969 *''

Ergasilus auritus ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' Markevich, 1940 *''

Ergasilus briani ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' Markevich, 1932 *''

Ergasilus caeruleus ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' C. B. Wilson, 1911 *''

Ergasilus celestis ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' J. F. Müller, 1937 *''

Ergasilus centrarchidarum ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' Wright, 1882 *''

Ergasilus cerastes ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' L. S. Roberts, 1969 *''

Ergasilus chautauquaensis ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' Fellows, 1887 *''

Ergasilus clupeidarum ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' S. K. Johnson & W. A. Rogers, 1972 *''

Ergasilus cotti ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' Kellicott, 1892 *''

Ergasilus cyanopictus ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' *''

Ergasilus cyprinaceus ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' W. A. Rogers, 1969 *''

Ergasilus elongatus ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' C. B. Wilson, 1916 *''

Ergasilus felichthys ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' (Pearse, 1947) *''

Ergasilus fryeri ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' *''

Ergasilus funduli ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' Krøyer, 1863 *''

Ergasilus gibbus ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' Von Nordmann, 1832 *''

Ergasilus globosus ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' *''

Ergasilus labracis ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' Krøyer, 1863 *'' Ergasilus lanceolatus'' C. B. Wilson, 1916 *''

Ergasilus lizae ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' Krøyer, 1863 *''

Ergasilus longimanus ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' *''

Ergasilus luciopercarum ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' Henderson, 1926 *''

Ergasilus manicatus ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' C. B. Wilson, 1911 *''

Ergasilus megaceros ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' C. B. Wilson, 1916 *''

Ergasilus mugilis ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' Vogt, 1877 *''

Ergasilus myctarothes ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' *''

Ergasilus nerkae ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' L. S. Roberts, 1963 *''

Ergasilus orientalis ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' *'' Ergasilus rhinos'' Burris & G. C. Miller, 1972 *''

Ergasilus sieboldi ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' Von Nordmann, 1832 *''

Ergasilus tenax ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' L. S. Roberts, 1965 *'' Ergasilus turgidus'' Fraser, 1920 *''

Ergasilus versicolor ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' C. B. Wilson, 1911 *''

Ergasilus wareaglei ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

'' S. K. Johnson, 1971 *''

Ergasilus wilsoni ''Ergasilus'' is a genus of copepod crustaceans occurring in both the ocean and fresh water, often called gill lice. The females are parasitic upon the gills of fishes. Being copepods, gill lice have a single median eye on their head. The second ...

References

Poecilostomatoida Parasitic crustaceans Taxa named by Alexander von Nordmann {{parasitic animal-stub