of which Tapangu and Tfuya are still spoken. Iimcu has not been well described. The grammar of the other three dialects is nearly identical, and phonological variation is marginal: In certain environments, Tapangu corresponds to Tfuya and Duhtu or , and Duhtu had for Tfuya and Tapangu (Actually, older speakers had been recorded to vary between and , but at that point the dialect was moribund.).

Tsou is spoken in the following villages: All of the villages are located in Alishan Township,