Children (12 direct children, 12 direct and indirect children):
Sternopygus obtusirostris
Sternopygus macrurus
Sternopygus xingu
Sternopygus pejeraton
Sternopygus aequilabiatus
Blue-green knifefish
Sternopygus arenatus
Sternopygus astrabes
Sternopygus branco
Sternopygus castroi
Sternopygus carapus
Sternopygus humboldtii
Sternopygus limbatus