sentences:  It has been known to enter brackish waters but is very rare in coastal areas, and never found in the presence of the competing saltwater crocodile ("C. porosus").The animal was first described from the area of the Sepik River in the north of Papua New Guinea.The closely related Hall's New Guinea crocodile is found in the southern half of the island, with a range that extends from southeastern Papua New Guinea to the Indonesian provinces of Papua and West Papua.