and the Khabarovsk District of Khabarovsk Krai); probably not Nanai or even Southern Tungusic (see Kili language);
* Bikin dialect: Pozharsky District of Primorsky Krai (near the middle Ussuri River);
* Sungari dialect: boundary areas of the Ussuri River in China.

It is thought that in Russia, the Nanai language has been best preserved in