 "Suifen" is the Manchu word "(suifun)" for awl, referring to the shape of a species of "Oncomelania" snail.In Russian, the river was originally known under the same Manchu / Chinese name (rendered as Суйфун (Suifun) in Russian).In 1972, in the aftermath of the Zhenbao Island incident (1969), toponyms of Chinese origin in Primorsky Krai were replaced en masse with newly designed Russian names; as part of this project, the Russian part of the Suifen received the name "Razdolnaya", which can be translated from Russian as "widely flowing".