Abramis, Genus
Acipenser, Genus
Acipenseridae, Familia
Acipenseriformes, Ordo
Actinopterygii, Classis
Alburnoides, Genus
Alburnus, Genus
Alosa, Genus
Ameiurus, Genus
Anguilla, Genus
Anguillidae, Familia
Anguilliformes, Ordo
Animalia, Regnum
Aristichthys, Genus
Aspius, Genus