Apparently, these fishes are remnants from the last ice age.
The Brownback whitefish lives in the benthopelagic, freshwater, depth range 18 - 168 m , usually 55 - 70 m environment.
Nothing known about the Brownback whitefish
Amerikanskiy ozerno-rechnoi sig in Russian (русский язык)
Brownback whitefish in English
Coulter's whitefish in English
Ménomini pygmée in French (français)
Pygmæhelt in Danish (dansk)
pygmy whitefish in English
Валек карликовый in Russian (русский язык)
小柱白鮭 in Mandarin Chinese
小柱白鲑 in Mandarin Chinese