Alternate Names: Sihan
Dialects: None known. May be intelligible of Bukitan ,, Ukit ,, and Punan Batu 1 ,.
Genealogy:
Demographics: 50 (Wurm 2000).
Language Use: Endangered (2000 S. Wurm). A few to half the children speak Sian.
Writing System: Unwritten
Nation of Origin: Malaysia