Nemacheilus is a genus of stone loaches native to Asia.
Nemacheilus dori is a species of ray-finned fish in the family Balitoridae. It is found only in Israel. Its natural habitat is rivers. It is threatened by habitat loss.
The Starostin's loach is a species of troglobitic stone loach endemic to Turkmenistan. It is the only known member of the genus Troglocobitis, but it has previously been included in the genus Nemacheilus. It is the only cavefish known from Central Asia. The species English vernacular name and specific name honour the hydrobiologist I. V. Starostin, who was a researcher of the inland waters of Turkmenistan.
The Blind cave loach is a species of troglobitic stone loach endemic to Thailand. It is only known from one subterranean stream in the Sai Yok Noi cave, which also is inhabited by Pterocryptis buccata. The blind cave loach has no eyes and lacks pigmentation. It grows to 6.8 cm (2.7 in) SL. Despite its common name, there are several other species of blind cave-living loaches.
Schistura denisoni is a species of ray-finned fish in the stone loach genus Schistura described from the Bhavani river of Tamil Nadu.
Schistura semiarmata is a species of stone loach in the genus Schistura. It is found in the Indian states of Karnataka, Kerala, and Tamil Nadu and, at least based on some sources, in Pakistan. It grows to 5.6 cm (2.2 in) SL. It is a very common species inhabiting high altitude streams with hard bottom. It is sometimes used as an aquarium fish.
Schistura zonata is a species of ray-finned fish, a stone loach, in the genus Schistura from hill streams in Assam, India. Its exact distribution is unknown and there have been records of this species since the type specimens were collected. Some authorities include Nemacheilus mugah as a synonym of S. zonata, which in turn has been regarded as a synonym of Schistura scaturigina, but these views are not currently widely accepted.
Afronemacheilus abyssinicus is a species of stone loach endemic to Ethiopia. It is known from the Blue Nile at its outlet from Tana Lake, with records from the Baro River. Originally the only species in its genus, in 2013 A. kaffa was described based on the Omo population, formerly included in A. abyssinicus.
Nemacheilus anguilla, the eel loach, is a species of ray-finned fish in the genus Nemacheilus which is endemic to the Western Ghats in southern India. It occurs in streams with pebbles and with sandy substrates. It is collected for the aquarium trade but the main threat may come from pollution caused by large numbers of pilgrims which attend temples near the waters in which this species occurs.
Oxynoemacheilus hamwii, the Orontes sportive loach, is a species of ray-finned fish in the genus Oxynoemacheilus. This species is found in the headwaters of the Orontes River but is now restricted to three streams in the Turkish part of the drainage, two joining the lower Orontes in Turket and the third flowing into the Afrin River in Syria, and has been extirpated from Syria. It was described as being very common in the late 20th century, but it is sensitive to pollution and requires clear, flowing streams over mud or gravel. The drainage of the Orontes is heavily used by humans and lower rainfall in the region caused by climate change may exacerbate the threat to this species by increasing the amount of water taken from the streams by humans and by lowering the water table.
Schistura kodaguensis is a species of ray-finned fish, a stone loach, in the genus Schistura. This species has been recorded from a single stream with a swift current and gravel bottom in the Cauvery River system in Karnataka, India. The specific name is derived from Kodagu District where the type specimen was collected.
Nemacheilus monilis, the spotted loach, is a species of ray-finned fish in the genus Nemacheilus which is endemic to the southern Western Ghats in the Indian states of Kerala and Tamil Nadu. It occurs in fast flowing water, even in rapids, over substrates consisting of pebbles and cobble substrates. It occasionally is collected and exported for the aquarium trade.
Nemacheilus triangularis is a species of stone loach endemic to the Western Ghats in southern Karnataka, Kerala, and Tamil Nadu, India. It is a fairly common species occurring in streams with gravel, cobbles and bedrock with some sand as the substrate. This fish grows to a length of 5.8 centimetres (2.3 in) SL and can be found in the aquarium trade.
Mesonoemacheilus petrubanarescui is a species of ray-finned fish from India. The specific name petrubanaescui honours the Romanian ichthyologist Petre Mihai Bănărescu. It grows to 3.5 cm (1.4 in) standard length. It is endemic to the Western Ghats and is known from only two locations, the Netravati River and Kabani River in Karnataka and Kerala. It is a little known species which is rare and may be threatened by habitat alteration, sand mining and pollution. It turns up occasionally in the aquarium trade where it is sold as the "dwarf loach".
Nemacheilus ruppelli, also known as the mongoose loach is a species of fish in the genus Nemacheilus. This fish is endemic to the Western Ghats of India. Recent evidence shows that there is only a marginal raw mitochondrial genetic distance between Nemachilichthys shimogensis and N. ruppelli. Although morphometric difference occur at the population level, Keskar et al. conclude that there are no significant differences separating the two species. Therefore they treat N. shimogensis as a synonym of N. ruppelli. The Eschmeyer's Catalog of Fishes follows this treatment.
Nemacheilus singhi is a species of ray-finned fish in the stone loach genus Nemacheilus, although some authorities place it in the genus Schistura. This species has only been recorded from a single locality in Nagaland, India.
Nemacheilus tuberigum is a species of stone loach endemic to Sumatra, Indonesia. It grows to 4.8 cm (1.9 in) SL.
The arrow loach is a species of ray-finned fish in the genus Nemacheilus.
The Amu-Darya stone loach is a species of ray-finned fish in the genus Nemacheilus, although it is sometimes placed in the genus Oxynoemacheilus.
Nemachilichthys shimogensis, the Shimoga loach, is a species of stone loach from the Western Ghats of Maharashtra and Karnataka. Although Fishbase treats it as a valid species some authorities state that N. shimogensis is the same species as, i.e. a synonym of, Nemacheilus rueppelli, which they then place as the only species in the genus Nemachilichthys.
