In the dialect of the Sanin region that includes the former Inaba province (present-day eastern Tottori Prefecture) sharks are called wani in some areas ("Nihon Kokugo Daijiten" [Complete Japanese-language dictionary]).
旧因幡国（現在の鳥取県東部）を含む山陰地方の方言ではサメのことをワニと呼んでいる所がある（『日本国語大辞典』）。