Panamius is a genus of cichlid fish from moderately flowing rivers and streams in Panama. The only species within Panamius is Panamius panamensis. Panamius had been previously considered a subgenus within the genus Cryptoheros.[1] Prior to being classified within Cryptoheros it was sometimes included within the genus Neetroplus.[1] P. panamensis reaches up to in length and primarily feeds on aufwuchs.