''Asprocottus herzensteini'', the Herzenstein's rough sculpin, is a deepwater sculpin, a

freshwater Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the term specifically excludes seawater and brackish water, it does include ...

fish which is endemic to

Lake Baikal Lake Baikal (, russian: Oзеро Байкал, Ozero Baykal ); mn, Байгал нуур, Baigal nuur) is a rift lake in Russia. It is situated in southern Siberia, between the federal subjects of Irkutsk Oblast to the northwest and the Repu ...

, Russia.''Asprocottus herzensteini''
at www.fishbase.org. It was described by

Lev Berg Lev Semyonovich Berg, also known as Leo S. Berg (russian: Лев Семёнович Берг; 14 March 1876 – 24 December 1950) was a leading Russian geographer, biologist and ichthyologist who served as President of the Soviet Geographical So ...

in 1906.Berg, L. S., 1906 (27 Nov.) ''Übersicht der Cataphracti (Fam. Cottidae, Cottocomephoridae und Comephoridae) des Baikalsees.'' Zoologischer Anzeiger v. 30 (no. 26): 906–911. It dwells at a depth range of 22–887 metres, and is abundantly found below 60 m. Males can reach a maximum total length of 11.5 centimetres.

References

Abyssocottidae Taxa named by Lev Berg Fish described in 1906 {{Scorpaeniformes-stub