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Ariidae
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Ariidae
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.
The Ariidae are among the oldest known siluroid catfish known from fossil remains. Fossilized pectoral spines and skull bone fragments of ariid catfish are known from the Late Cretaceous (Campanian and Maastrichtian) of Argentina. The ariid relative Vorhisia is known from highly abundant fossil otoliths from Maastrichtian-aged nearshore marine formations of North America.
The relationships of this family are not yet clear. Two of the genera, Gogo and Ancharius, have been moved to a separate family called Anchariidae. The Ariidae are divided into three subfamilies: Galeichthys is the only genus classified in the subfamily Galeichthyinae and similarly Bagre is the only genus in the subfamily Bagreinae, while the rest of the genera are classified in the subfamily Ariinae.
Previously, the family Ariidae has been grouped in the superfamily Doradoidea, but then it was moved into Bagroidea (along with Austroglanididae, Claroteidae, Schilbeidae, Pangasiidae, Bagridae, Malapteruridae, and Pimelodidae. It has also been classified in a superfamily Arioidea containing Ariidae and Anchariidae.
The following genera are placed in this family:
Ariids are found worldwide in tropical to warm temperate zones. Ariids are unusual among catfish in that they live primarily in the sea; the majority of catfish families are strictly freshwater and have little tolerance for brackish or marine conditions. Ariid catfish are found in shallow temperate and tropical seas around the coastlines of North and South America, Africa, Asia, and Australia.
Many other species of catfish are also present in freshwater habitats; some species only occur in freshwater. In North and South America, about 43 species extend into brackish water or are found exclusively in fresh water.
Ariid catfish have a deeply forked caudal fin. Usually, three pairs of barbels are present. They possess some bony plates on their heads and near their dorsal fins. Some species have venomous spines in their dorsal and pectoral fins.
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Ariidae
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.
The Ariidae are among the oldest known siluroid catfish known from fossil remains. Fossilized pectoral spines and skull bone fragments of ariid catfish are known from the Late Cretaceous (Campanian and Maastrichtian) of Argentina. The ariid relative Vorhisia is known from highly abundant fossil otoliths from Maastrichtian-aged nearshore marine formations of North America.
The relationships of this family are not yet clear. Two of the genera, Gogo and Ancharius, have been moved to a separate family called Anchariidae. The Ariidae are divided into three subfamilies: Galeichthys is the only genus classified in the subfamily Galeichthyinae and similarly Bagre is the only genus in the subfamily Bagreinae, while the rest of the genera are classified in the subfamily Ariinae.
Previously, the family Ariidae has been grouped in the superfamily Doradoidea, but then it was moved into Bagroidea (along with Austroglanididae, Claroteidae, Schilbeidae, Pangasiidae, Bagridae, Malapteruridae, and Pimelodidae. It has also been classified in a superfamily Arioidea containing Ariidae and Anchariidae.
The following genera are placed in this family:
Ariids are found worldwide in tropical to warm temperate zones. Ariids are unusual among catfish in that they live primarily in the sea; the majority of catfish families are strictly freshwater and have little tolerance for brackish or marine conditions. Ariid catfish are found in shallow temperate and tropical seas around the coastlines of North and South America, Africa, Asia, and Australia.
Many other species of catfish are also present in freshwater habitats; some species only occur in freshwater. In North and South America, about 43 species extend into brackish water or are found exclusively in fresh water.
Ariid catfish have a deeply forked caudal fin. Usually, three pairs of barbels are present. They possess some bony plates on their heads and near their dorsal fins. Some species have venomous spines in their dorsal and pectoral fins.
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