Nemacheilus is a genus of stone loaches native to Asia.
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.
Nemacheilus corica is a species of ray-finned fish in the genus Nemacheilus. It occurs in the foothills of the Himalayas in the drainage of the Ganges in Nepal and the Indian states of Uttar Pradesh, Uttarakhand, Bihar and West Bengal. Its reported presence in other areas need to be confirmed.
Nemacheilus anguilla 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.
Nemacheilus arenicolus is a species of ray-finned fish in the genus Nemacheilus which is found only in the Nam Theun and Nam Gnouang rivers in Laos.
Nemacheilus banar is a species of ray-finned fish in the genus Nemacheilus, it has currently only been recorded in Vietnam but it may occur also in Laos.
Nemacheilus binotatus is a species of ray-finned fish in the genus Nemacheilus which is found in the Chao Phraya and Maeklong basins in Thailand.
Mesonoemacheilus menoni is a species of ray-finned fish in the genus Mesonoemacheilus. It is endemic to the southern Western Ghats in Kerala, India, where it occurs in the upper reaches of the Periyar River over substrates of cobbles, pebbles and sand in flowing water. It is common within the Periyar Tiger Reserve but may be threatened by predation and competition from the invasive African cichlid Mozambique tilapia, the common carp and Clarias gariepinus.
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 pallidus is a species of ray-finned fish in the genus Nemacheilus which occurs in the lower Mekong basin in Thailand, Laos, Cambodia and Vietnam, as well as in the Chao Phraya and Maeklong basins in Thailand.
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 platiceps is a species of ray-finned fish in the genus Nemacheilus. It has been recorded in the lower Mekong basin in eastern Thailand, central and southern Laos, Cambodia and Vietnam. Its habitat is stretches of rivers with a gravel substrate where there is a moderate to rapid current in the lowlands and in foothills. It is consumed locally in subsistence fisheries and is occasionally found in the aquarium trade.
Nemacheilus rueppelli, also known as the mongoose loach is a species of stone loach from rivers in India. It includes Nemachilichthys shimogensis, which frequently is recognized as a valid species from the Thunga River in Karnataka, but Keskar et al. 2015 treat them as synonyms, while Fishbase says the name is misapplied and should not be used as N. shimgoensis is treated as a separate species by Fishbase and the IUCN. According to Keskar et al, 2015 this species is placed in the monotypic genus Nemachilichthys but Fishbase retains it in Nemacheilus., although Catalog of Fishes follows treatment outlined by Keskar et al.
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 stigmofasciatus, the Thuttinjet stone loach, is a species of ray-finned fish in the genus Nemacheilus which has been recorded from just one locality in the west flowing river Seethanathi at Thuttinjet in Karnataka. This locality is at an altitude of 199m above sea level and has many cascades and waterfalls in its upstream portion. The stream is dominated by the presence of pebbles and boulders with gravel and sand making up approximately 5% of the substrate.
Nemacheilus subfusca is a species of ray-finned fish from the family Nemacheilidae in the genus Nemacheilus which is found in Assam and China. It inhabits pebbly streams. N. subfusca was synonymised with Neomacheilus scaturigina which was described by Menon from the collection of Hamilton. It was, however, then treated as a valid species and sometimes placed in the genus Schistura.
Nemacheilus yingjiangensis is a species of ray-finned fish in the genus Nemacheilus, although some authorities place it in the genus Schistura. The species has only been recorded from the Daying River, a tributary of the Irrawaddy River in Yingjiang County, Yunnan Province, China.
The arrow loach is a species of ray-finned fish in the genus Nemacheilus.
Nemachilichthys shimogensis 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.
