| Introduction may have occurred after the mid-1970s (Ref. 13364). Introduced to Irian Jaya, possibly in the Merauke area and has now spread to the Morehead River in Papua New Guinea (Ref. 2847). Has been reported to occur in Bensbach river from Merauke area in West Papua. Records at Balamuk village indicate that it was first encountered in the Weam area of the Bensbach in 1985, possibly entering the river via drainage ditches associated with the building of the Trans-Irian Highway, which in 1982 crossed the international border in two locations near the upper part of the river (Ref. 50786).
Ref:
Allen, G.R., 1991
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