Scleropages jardinii, the Gulf saratoga, Australian bonytongue, pearl arowana or northern saratoga, is a freshwater bony fish native to Australia and New Guinea, one of two species of fishes sometimes known as Australian arowana, the other being Scleropages leichardti. It has numerous other common names, including northern saratoga, toga and barramundi (not to be confused with the barramundi perch, Lates calcarifer). It is a member of the subfamily Osteoglossinae, a (basal) teleost group. Its scientific name is sometimes spelled S. jardini.
Distribution
Scleropages jardinii is patchily distributed throughout most of the Gulf of Carpentaria drainage system, west to the Adelaide River in the Northern Territory, throughout northern Queensland and in central-southern New Guinea. It inhabits still clear waters of pools and billabongs, and the slow-flowing sections of streams.