is a biological genus in the family Characidae (American Characins) and order Characiformes (Leporins).
Hemigrammus ocellifer
Hemigrammus pulcher
Hemigrammus unilineatus
Hemigrammus erythrozonus
Hemigrammus rodwayi
Hemigrammus bleheri
Hemigrammus rhodostomus
Hemigrammus ulreyi
Astyanax
Paracheirodon