L1 users: 3,700 (1991 SIL).
Papua Barat province: Sorong Selatan regency in Bird’s Head, northwest coast of Maccluer gulf.
Kasuweri (Komudago), Negri Besar (Negeri Besar), Tarof. Wurm and Hattori (1981) list Kasuweri and Tarof as separate languages. Komudago and Tarof dialects are most similar. Lexical similarity: 60% with Kemberano [bzp]; Kasuweri dialect 86% with Tarof dialect; Negri Besar 82% with Tarof.