Hardhead Catfishes (Arius) is a biological genus in the family Ariidae (Fork-tailed Catfishes) and order Siluriformes (Catfishes).
Arius acutirostris
Arius africanus
Arius brunellii
Arius cous
Arius gigas
Arius heudelotii
Arius jatius
Arius latiscutatus
Arius macracanthus
Arius macrorhynchus
Arius malabaricus
Arius parkii
Arius phrygiatus
Arius platystomus
Arius rugispinis
Arius subrostratus
Arius sumatranus
Arius dispar
Arius gagora
Arius harmandi
Arius oetik
Arius manillensis
Arius arenarius
Arius leptonotacanthus
Arius maculatus
Arius microcephalus
Arius arius
Arius venosus
Amissidens
Ancharius
Ariopsis
Aspistor
Batrachocephalus
Brustiarius
Cathorops
Cephalocassis
Cinetodus
Cochlefelis
Cryptarius
Galeichthys
Genidens
Guiritinga
Hemiarius
Hemipimelodus
Hexanematichthys
Ketengus
Nedystoma
Nemapteryx
Netuma
Osteogeneiosus
Plicofollis
Potamarius
Sciades