L1 users: 30 (Wurm 2000).
Sarawak: Marudi district, west of Long Geng, southeast of Belaga.
8b (Nearly extinct).
Seriously endangered (2000 S. Wurm). A few to half the children speak it.
Different from Punan Batu, a dialect of Sajau Basap [sjb] in Kalimantan. Nomadic. They get salt from the Kayan.