Barbatula is a genus of fish in the family Nemacheilidae native to Europe and Asia. They are found in streams, rivers and lakes, and the genus also includes Europe's only cavefish, which only was discovered in the Danube–Aachtopf system in Germany in 2015.
Barbatula namiri is a species of ray-finned fish in the family Balitoridae. It is found in Lebanon, Syria, and Turkey. Its natural habitat is rivers. It is found in the Orontes River watershed and coastal rivers of Lebanon and Syria north of southern Nahr al-Kabir al-Janoubi. It is threatened by habitat loss by water extraction and dams and pollution in Turkey; threats in Lebanon and Syria are unknown. The population is unknown but is considered stable in Turkey.
Barbatula samantica is a species of ray-finned fish in the family Balitoridae. It is found only in Turkey. Its natural habitat is rivers. It is threatened by habitat loss.
The stone loach is a European species of fresh water ray-finned fish in the family Nemacheilidae. It is one of nineteen species in the genus Barbatula. Stone loaches live amongst the gravel and stones of fast flowing water where they can search for food. The most distinctive feature of this small fish is the presence of barbels around the bottom jaw, which they use to detect their invertebrate prey. The body is a mixture of brown, green and yellow.
Barbatula altayensis is one of seventeen species of ray-finned fish in the genus Barbatula. It is found in Mongolia and Xinjiang Province in China.
Oxynoemacheilus araxensis is a species of ray-finned fish in the genus Oxynoemacheilus. It was described from specimens taken at a single locality near Kandili, the type locality, the upper drainage of the Euphrates in eastern Turkey. It has never been recorded anywhere else although there are many populations of superficially similar loaches in the Euphrates drainage which have not yet been identified; these may prove to be of this species or of Oxynoemacheilus kaynaki. Its habitat appears to be moderately fast flowing streams with a gravel bottom.
Oxynoemacheilus cinicus is a species of Cypriniformes fish in the genus Oxynoemacheilus. It is little known and is most likely from western Anatolia and the Büyük Menderes River.
Barbatula dgebuadzei is a species of ray-finned fish in the genus Barbatula, which belongs to the family Nemacheilidae, the stone loaches. This loach is endemic to Mongolia where it occurs in the Baidrag-Gol River drainage, Gobi Lakes Valley.
Oxynoemacheilus argyrogramma, the two-spot loach is a species of ray-finned fish in the genus Oxynoemacheilus. This species is found in the drainage of the Queiq River in Syria and Turkey, and the upper Euphrates drainage in Turkey and possibly in this drainage in Syria and Iraq. It has almost been extirpated from the Queiq as this river has virtually dried out but it remains abundant in the Euphrates. This species can be found in a wide range of habitats as long as there is a moderately fast current from small upland streams to banks of large rivers. It can also occur in stagnant water bodies such as reservoirs. It is threatened by water abstraction, lowering rainfall due to climate change and the construction of dams. The economic development of the area where this species occurs exacerbates these threats. Freyhof and Özuluǧ published a paper in 2017 that argued that Oxynoemacheilus euphraticus was a valid species and not a synonym of O. argyrogramma.
Oxynoemacheilus germencicus, the Carian loach, is a species of Cypriniformes fish in the genus Oxynoemacheilus. It is known only from the Büyük Menderes River and lower Gediz River in western Anatolia, it probably also occurred in the Kücük Menderes, a river which sits between the Büyük Menderes and Gediz, and has been extirpated from that river by pollution and abstraction. It remains widespread and locally abundant in the other two rivers but the populations have declined and the species is threatened by climate change reducing rainfall in the area and human activities such as damming and water abstraction as well as pollution>
Oxynoemacheilus kosswigi, the Paphlagonian loach, is a species of ray-finned fish in the genus Oxynoemacheilus. This species is found in the Kizilirmak and Yeşilırmak drainages in northern Anatolia, Turkey. It lives in waters which vary from those with a moderately fast flow to almost still waters and prefers muddy or gravel substrates, It remains abundant and widespread within the two drainage systems in which it occurs but it is suspected that a number f populations may have declined or been made locally extinct by the increasing construction of small hydro-electric dams.
Barbatula nuda is a species of ray-finned fish in the genus Barbatula, which belongs to the family Nemacheilidae, the stone loaches. This loach is found in the Liao and Taizi River drainages in northern China and in northern North Korea.
Barbatula quignardi, the Languedoc stone loach or Les stone loach,, is a species of ray-finned fish in the genus Barbatula, which belongs to the family Nemacheilidae, the stone loaches. This loach is found in the drainage of Ebro, Bidasoa and Nervión in Spain and Lez, Tech, Adour and Garonne drainages in France
Barbatula sturanyi, the Ohrid stone loach, is a species of ray-finned fish in the genus Barbatula, which belongs to the family Nemacheilidae, the stone loaches. This loach is endemic to te Lake Ohrid drainage basin in the Balkan Peninsula.
Barbatula toni is a species of ray-finned fish in the genus Barbatula.
Barbatula zetensis, also known as the Zeta stone loach, is a species of Cypriniformes fish in the genus Barbatula. It is found in the drainage of the River Morača in the Lake Skadar basin in Montenegro. It is common in streams and rivers with stone beds.
Ctenophryne barbatula is a species of frog in the family Microhylidae. It is endemic to Peru and only known from the Yanachaga–Chemillén National Park, its type locality in the Pasco Region. The specific name barbatula is the diminutive of the Latin barbatus, meaning "bearded". It refers to the beard-like spines under the lower jaw of males.
Barbatula potaninorum is a species of ray-finned fish in the genus Barbatula, which belongs to the family Nemacheilidae, the stone loaches. This loach is found in northern China and Inner Mongolia.
Barbatula sawadai is a species of stone loach in the family Nemacheilidae. It is native to the Selenga River basin in Mongolia and Russia.
Barbatula cobdonensis is a species of freshwater ray-finned fish belongig to the family Nemacheilidae, the stone loaches. This loach is found in the lakes Khintiktig-Khol and Ak-Khol and in the Mogen-Buren River all within the drainage basin of the Kobdo River in northwestern Mongolia and the Tuva Republic in Russia. This taxon is placed with some uncertainty within the genus Barbatula as a species inquirenda, or it may be a junior synonym of B. compressirostris.
