The Cottidae are a family of fish in the superfamily Cottoidea, the sculpins. It is the largest sculpin family, with about 275 species in 70 genera. They are referred to simply as cottids to avoid confusion with sculpins of other families.
The Abyssocottinae are a subfamily of ray-finned fishes in the family Cottidae, the sculpins. They are known commonly as the deep-water sculpins. The entire family is endemic to Lake Baikal in Siberia.
Cottus is a genus of the mainly freshwater ray-finned fishes belonging to the family Cottidae, the typical sculpins. They are often referred to as the "freshwater sculpins", as they are the principal genus of sculpins to be found in fresh water. They are native to the Palearctic and Nearctic.
Comephorus, known as the golomyankas or Baikal oilfish, are a genus comprising two species of peculiar, sculpin fishes endemic to Lake Baikal in Russia. Comephorus is the only genus in the subfamily Comephorinae. Golomyankas are pelagic fishes which make the main food source of the Baikal seal.
Asprocottus is a genus of deepwater sculpins endemic to Lake Baikal in Russia.
Procottus is a genus of deepwater sculpins endemic to Lake Baikal in Russia.
Batrachocottus is a genus of freshawater ray-finned fishes belonging to the family Cottidae, the typical sculpins. These fishes are endemic to the Lake Baikal watershed in Russia.
Kessler's sculpin is a species of Baikal sculpin, a freshwater fish native to Russia and Mongolia where it occurs in Lake Baikal and surrounding lakes as well as the Selenga, Angara and Bain Gol rivers. It is the only member of its genus. In Lake Baikal it occurs on sandy, rocky-sandy or sandy-muddy bottoms, ranging from relatively shallow water to depths of 70 m (230 ft). In rivers they mainly occur in slow-flowing channels and floodplains.
Abyssocottus elochini is a species of ray-finned fish belonging to the family Cottidae, the typical sculpins. These sculpins are endemic to Lake Baikal in Russia. It is known to dwell at a depth range of 250–300 metres.
Abyssocottus gibbosus is a species of ray-finned fish belonging to the family Cottidae, the typical sculpins. These sculpins are endemic to Lake Baikal in Russia. It dwells at a depth range of 400–1600 metres. Males can reach a maximum total length of 14 centimetres.
Asprocottus abyssalisis a species of ray-finned fish belonging to the family Cottidae, the typical sculpins. These sculpins are endemic to Lake Baikal in Russia. It was described by Dmitrii Nikolaevich Taliev in 1955, originally as a subspecies of Asprocottus herzensteini. It is a freshwater fish which is endemic to Lake Baikal, Russia. It is known to dwell at a depth range of 150–1400 metres.
Herzenstein's rough sculpin is a species of ray-finned fish belonging to the family Cottidae, the typical sculpins. These sculpins are endemic to Lake Baikal in Russia. It was described by Lev Berg in 1906. 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.
Asprocottus intermedius is a species of ray-finned fish belonging to the family Cottidae, the typical sculpins. It was described by Dmitrii Nikolaevich Taliev in 1955, originally as a subspecies of Asprocottus herzensteini. It is a freshwater fish which is endemic to Lake Baikal, Russia. It is known to dwell at a depth range of 200–800 metres.
Asprocottus minor is a species of ray-finned fish belonging to the family Cottidae, the typical sculpins. It was described by Valentina Grigorievna Sideleva in 2001, originally as a subspecies of Asprocottus korjakovi. It is a freshwater fish which is endemic to Lake Baikal, Russia.
Asprocottus parmiferus is a species of ray-finned fish belonging to the family Cottidae, the typical sculpins.. It was described by Dmitrii Nikolaevich Taliev in 1955, originally as a subspecies of Asprocottus herzensteini. It is a freshwater fish which is endemic to Lake Baikal, Russia. It is known to dwell at a depth range of 50–500 metres.
Asprocottus platycephalus is a species of ray-finned fish belonging to the family Cottidae, the typical sculpins. It was described by Dmitrii Nikolaevich Taliev in 1955, originally as a subspecies of Asprocottus herzensteini. It is a freshwater fish which is endemic to Lake Baikal, Russia. It is known to dwell at a depth range of 50–800 metres, most commonly between 250 and 460 m. Males can reach a maximum total length of 10.5 centimetres.
Asprocottus pulcher is a species of ray-finned fish belonging to the family Cottidae, the typical sculpins. It was described by Dmitrii Nikolaevich Taliev in 1955. It is a freshwater fish which is endemic to Lake Baikal, Russia. It is known to dwell at a depth range of 50–250 metres.
Cyphocottus eurystomus is a species of ray-finned fish belonging to the family Cottidae, the typical sculpins. These sculpins are endemic to Lake Baikal in Russia. It was described by Dmitrii Nikolaevich Taliev in 1955, originally as a subspecies of Asprocottus megalops. It is a freshwater fish which is endemic to Lake Baikal, Russia. It is known to dwell at a depth range of 50–600 metres.
Procottus gotoi is one of the four species of Procottus, a genus of deepwater sculpins endemic to Lake Baikal, Siberia. It was described only in 2001 by Valentina Sideleva.
The Baikal yellowfin, also known as the yellow-finned sculpin or yellow-wing sculpin, is a species of freshwater ray-finned fish belonging to the family Cottidae, the typical sculpins. This species is endemic to Lake Baikal and its tributaries in Siberia, Russia. It is most common in the southern part of the lake and lives from near the shore to a depth of 300 m (980 ft).
