Lake Baikal is a rift lake that is the deepest lake in the world. It is situated in southern Siberia, Russia between the federal subjects of Irkutsk Oblast to the northwest and the Republic of Buryatia to the southeast.
The Baikal seal, also known as Lake Baikal seal or Baikal nerpa, is a species of earless seal endemic to Lake Baikal in Siberia, Russia. Like the Caspian seal, it is related to the Arctic ringed seal. The Baikal seal is one of the smallest true seals and the only exclusively freshwater pinniped species. A subpopulation of inland harbour seals living in the Hudson Bay region of Quebec, Canada,, as well as the Saimaa ringed seal and the Ladoga seal, are also found in fresh water, but these seals are part of species that also have marine populations.
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 subfamily is endemic to Lake Baikal in Siberia.
Lepidocephalichthys jonklaasi, known as the Jonklaas's loach or the spotted loach, is an endemic fish species restricted to the wet zone of Sri Lanka. The species was first recorded from the Wilpita area. It is currently known from 12 locations in the wet zone including Beraliya, Dombagaskandha, Madakada, Gilimale, Hiyare, Kottawa, Kanneliya, Weddagala, Nakiyadeniya, Pahiyangala and Boralugoda. It is recorded from a wide range of altitudes. Due to its restricted range and the threats to its habitat Lepidocephalichthys jonklaasi, is listed as an Endangered species. The species has already begun to disappear from some of the sites mentioned above due to destruction and fragmentation of its habitat and many other threats that are operating on the species.
Neocottus is a genus of ray-finned fish belonging to the family Cottidae, the typical sculpins. These fishes are endemic to endemic to Lake Baikal 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.
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.
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 korjakovi is a species of ray-finned fish belonging to the family Cottidae, the typical sculpins. This species is endemic to the ancient lake Baikal in Siberia. It is a member of the deepwater sculpin family Abyssocottidae, and was described scientifically by Valentina Sideleva in 2001.
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.
Limnocottus bergianus is a species of ray-finned fish belonging to the family Cottidae, the typical sculpins. It was described by Dmitrii Nikolaevich Taliev in 1935. It is a freshwater fish which is endemic to Lake Baikal, Russia. It is known to dwell at a depth range of 100–1000 metres. Males can reach a maximum total length of 22.5 centimetres.
Limnocottus griseus 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 Abyssocottus godlewskii. It is a freshwater fish which is endemic to Lake Baikal, Russia. It is known to dwell at a depth range of 250–1300 metres.
Neocottus werestschagini is a species of ray-finned fish belonging to the family Cottidae, the typical sculpins. It was described by Dmitrii Nikolaevich Taliev in 1935, originally under the genus Abyssocottus. It is a rare freshwater, deep water-dwelling fish which is endemic to Lake Baikal, Russia. It dwells at a depth range of 877 to 1,400 metres, and inhabits silty sand sediments. Males can reach a maximum total length of 9.8 centimetres (3.9 in).
Procottus gotoi is a species of ray-finned fish belonging to the family Cottidae, the typical sculpins. It is endemic to Lake Baikal in Siberia. This species was first formally described in 2001 by Valentina Grigorievna Sideleva.
Procottus jeittelesii, the red sculpin or red Baikal sculpin, is a species of ray-finned fish belonging to the family Cottidae, the typical sculpins. This species is endemic to Lake Baikal in Russia. It is a freshwater fish that dwells under stones or in holes in the mud at a depth range of 0 to 800 m. It is often found at around 100 m (330 ft), and is most abundant during the autumn and winter. From the late winter to the spring it breeds at depths of 5 to 30 m. It can reach a maximum length of 18 cm (7.1 in), but typically is 10–12 cm (3.9–4.7 in). It has a red spotted or banded pattern on a light background. The red sculpin resembles two of its close relatives, the smaller P. gurwici and the larger P. major.
