The estuarine sea catfish (''Cathorops aguadulce''), also known as the Aguadulce sea catfish, is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

sea catfish The Ariidae or ariid catfish are a family of catfish that mainly live in marine waters with many freshwater and brackish water species. They are found worldwide in tropical to warm temperate zones. The family includes about 143 species. Taxono ...

in the family Ariidae. It was described by Seth Eugene Meek in 1904, originally under the genus ''

Galeichthys ''Galeichthys'' is a genus of sea catfishes in the family Ariidae, the only genus in the subfamily Galeichthyinae. It includes four predominantly marine species distributed in Southern Africa and northwestern South America: * '' Galeichthys ater ...

''.Meek, S. E. 1904 (23 Sept.) ef. 2958''The fresh-water fishes of Mexico north of the isthmus of Tehuantepec.'' Field Columbian Museum, Zoological Series v. 5: i-lxiii + 1-252, Pls. 1-17. It is a tropical fish which is known from

Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

Guatemala Guatemala ( ; ), officially the Republic of Guatemala ( es, República de Guatemala, links=no), is a country in Central America. It is bordered to the north and west by Mexico; to the northeast by Belize and the Caribbean; to the east by H ...

, where it typically inhabits freshwater rivers,

lagoon A lagoon is a shallow body of water separated from a larger body of water by a narrow landform, such as reefs, barrier islands, barrier peninsulas, or isthmuses. Lagoons are commonly divided into ''coastal lagoons'' (or ''barrier lagoons'') a ...

s, and drainages, also sometimes dwelling in marine waters. It reaches a maximum

standard length Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries biology. Overall length * Standard length (SL) is the length of a fish m ...

of .

References

Ariidae Fish described in 1904 Taxa named by Seth Eugene Meek {{Ariidae-stub