The northern cavefish or northern blindfish is found in caves through Kentucky and southern Indiana. It is listed as a threatened species in the United States and the IUCN lists the species as near threatened.
Stenodus leucichthys is a species of freshwater whitefish in the family Salmonidae. In the strict sense its natural distribution is restricted to the Caspian Sea basin, and it is known as beloribitsa. The beloribitsa is now considered extinct in the wild, but survives in cultured stocks. The nelma, a more widespread species of Eurasian and North America, is sometimes considered its subspecies.
Percina austroperca, the southern logperch, is a small species of freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. They are highly resilient with a minimum population doubling time of less than 15 months. It is found in the Escambia and Choctawhatchee river systems in western Florida and southern Alabama.
The Oregon chub is a species of ray-finned fish in the family Cyprinidae. It is endemic to Oregon in the United States. From 1993 to 2015 it was a federally listed threatened species.
Cavefish or cave fish is a generic term for fresh and brackish water fish adapted to life in caves and other underground habitats. Related terms are subterranean fish, troglomorphic fish, troglobitic fish, stygobitic fish, phreatic fish and hypogean fish.
Stenodus nelma, known alternatively as the nelma, sheefish, siifish, inconnu or connie, is a commercial species of freshwater whitefish in the family Salmonidae. It is widespread in the Arctic rivers from the Kola Peninsula eastward across Siberia to the Anadyr River and also in the North American basins of the Yukon River and Mackenzie River.
Schizopygopsis is a genus of cyprinid fish. Most species are endemic to river basins in the Himalayas and Qinghai–Tibet Plateau of China, but S. stoliczkai extends into the highlands of Afghanistan, Iran, northern India, Kyrgyzstan, Pakistan and Tajikistan.
Schizopygopsis kessleri is a species of ray-finned fish endemic to China.
Schizopygopsis kialingensis is a species of ray-finned fish. It is endemic to the Jialing River in Gansu Province, China. It grows to 12.7 cm (5.0 in) SL.
Schizopygopsis malacanthus is a species of ray-finned fish endemic to China. It grows to 20.4 cm (8.0 in) SL.
Schizopygopsis thermalis is a species of ray-finned fish endemic to China. It occurs in the upper Salween River drainage in Tibet. Little is known about its ecology, apart from it being recorded from rivers.
Schizopygopsis younghusbandi is a species of ray-finned fish endemic to Tibet. It occurs in the Yarlung Tsangpo River drainage and in endorheic lakes in its vicinity. Schizopygopsis younghusbandi grows to about 50 cm (1.6 ft) in total length.
The false osman is an Asian cyprinid freshwater fish living in the highlands of Afghanistan, southwestern China, Iran, northern India, Kyrgyzstan, Pakistan and Tajikistan. Young individuals and small adults live in shallow streams and pools, while large adults inhabit the main river and lakes. It grows to 34 cm (13 in) in total length.
Coregonus maraena, referred to in English as the maraene, maraena whitefish or the whitefish, is a whitefish of the family Salmonidae that occurs in the Baltic Sea basin - in the sea itself and the inflowing rivers, and in several lakes as landlocked populations. It is found in Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Netherlands, Norway, Poland, Slovakia, Russia and Sweden. As of 2013, it has been listed as a vulnerable species by the IUCN and as endangered by HELCOM. It is an extremely important fish within the Baltic Sea ecosystem, both for population equilibrium and for the local diets of the surrounding human population. Due to a variety of factors, mostly overfishing, the maraena’s population dwindled to near-extinction levels. Thus, rampant repopulation was enacted to preserve this important fish.
Chuanchia labiosa is a species of cyprinid fish that is only found in the upper reaches of the Yellow River basin in the Qinghai–Tibet Plateau of China, where it mostly inhabits slow-flowing cold waters at altitudes above 3,000 m (9,800 ft). It is the only member of its genus, but is related to other schizothoracines like Aspiorhynchus, Diptychus, Gymnodiptychus, Gymnocypris, Oxygymnocypris, Platypharodon, Ptychobarbus, Schizopyge, Schizopygopsis and Schizothorax.
Oxygymnocypris stewartii is a species of cyprinid fish endemic to Tibet and occurs in the Yarlung Tsangpo River and its tributaries at altitudes above 3,600 m (11,800 ft) in the Qinghai-Tibet Plateau. It is the only species in its genus.
Platypharodon extremus is a species of cyprinid fish endemic to the upper Yellow River basin in the Qinghai–Tibet Plateau of China. It is the only member of its genus, but is related to other schizothoracines like Aspiorhynchus, Chuanchia, Gymnocypris, Oxygymnocypris, Ptychobarbus, Schizopyge, Schizopygopsis and Schizothorax.
Ptychobarbus is a genus of cyprinid fish that is found in rivers, streams and lakes in the Himalayas and Tibetan Plateau of China, India, Nepal and Pakistan, extending into the highlands of Afghanistan. They reach up to 2.2 kg (5 lb) in weight and about 65 cm (2.1 ft) in total length. They mostly feed on benthic invertebrates, but will also take planktonic organisms, aquatic plants and algae.
