Treuz Fly-Bulaka River (Yekmek, Maklew, Bine, Wipii (Gidra), Gizra, Meriam, Northeastern Kiwai, Arigibi, Southern Kiwai, Bamu, Morigi, Kerewo, Waboda, Moraori, Idi, Agob (Dabu), Waia, Tirio, Aturu, Lewada, Bitut (Mutum), Baramu, Were, Yey, Namo (Dorro), Nambo (Nambu). Neme, Namat, Nama, Nen, Blafe (Tonda), Rema, Guntai, Kunja, Arammba, Wara, Ngkalmpw Kanum, Badi Kanum, Sota Kanum, Smarky Kanum)