 Although named after the lake, both the Baikal teal and Baikal bush warbler are widespread in eastern Asia.Fewer than 65 native fish species occur in the lake basin, but more than half of these are endemic.The families Abyssocottidae (deep-water sculpins), Comephoridae (golomyankas or Baikal oilfish), and Cottocomephoridae (Baikal sculpins) are entirely restricted to the lake basin.