| Hypergastromyzon | |
|---|---|
 | |
| Hypergastromyzon humilis | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cypriniformes |
| Superfamily: | Cobitoidea |
| Family: | Gastromyzontidae |
| Genus: | Hypergastromyzon T. R. Roberts, 1989 |
| Type species | |
| Hypergastromyzon humilis Roberts, 1989 | |
Hypergastromyzon is a genus of loaches endemic to the island of Borneo in Southeast Asia.
There are currently 2 recognized species in this genus: [1] [2]
The hillstream loaches or river loaches are a family, the Balitoridae, of small fish from South, Southeast and East Asia. The family includes about 202 species. They are sometimes sold as "lizardfish" or "flossensaugers". Many of the species are popular for aquaria, species in the genus Sewellia are most commonly sold in the aquaria trade. They have a number of similarities with the Cobitidae, their sibling family of "loaches", such as multiple barbels around the mouth. They should not be confused with the loricariids, which look similar but are a family of catfish.
Pangio is a genus of small Asian freshwater fish in the true loach family Cobitidae. In earlier taxonomic schemes it was known as Acanthophthalmus. The "kuhli loach" is well-known in the aquarium trade and commonly identified as P. kuhlii, but most individuals actually appear to be P. semicincta.
Yasuhikotakia is a genus of botiid loaches, many which are popular aquarium fish. It is named in honor of Japanese collector/researcher Dr. Yasuhiko Taki. This genus has been separated from the genus Botia in the paper by Maurice Kottelat in 2004.
Misgurnus is a genus of true loaches found in Europe and Asia. The origin of the name Misgurnus comes from the Greek word miseo and the Turkish gür (loud), a name given to them due to their habit of becoming very active during barometric pressure changes that occur during thunderstorms. The common names, weather loach or weatherfish, also derive from this behavior. Some species of misgurnus are eaten, mostly in Asia, and are also sold as pets in the aquarium trade. Their average size can range for 6 to over 12 inches.
Hemimyzon is a genus of ray-finned fish in the family Balitoridae.
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.
Beaufortia is a genus of gastromyzontid loaches from China and mainland Southeast Asia.
Gastromyzon is a genus of gastromyzontid loaches native to Borneo.
Loaches are fish of the superfamily Cobitoidea. They are freshwater, benthic (bottom-dwelling) fish found in rivers and creeks throughout Eurasia and northern Africa. Loaches are among the most diverse groups of fish; the 1249 known species of Cobitoidea comprise about 107 genera divided among 9 families.
Barbucca is a genus of loaches native to Southeast Asia. It is currently the only genus in its family.
Glaniopsis is a small genus of loaches endemic to the island of Borneo.
Paracobitis is a genus of Asian stone loaches.
Paraprotomyzon is a genus of gastromyzontid loaches endemic to China.
Sewellia is a genus of fish in the family Gastromyzontidae. They are commonly called hillstream loaches and are found in Laos and Vietnam. According to Roberts (1998) a possible defining characteristic of the genus Sewellia is their posterior pelvic valve is highly complex and different from other rheophilic loaches, their posterior pelvic valve involves the overlapping of the second to last ventrally exposed rays. Adapted to high velocity streams, Sewellia have depressed body shapes that are laterally expanded, thus increasing their hydrodynamical properties and allowing them to better stay attached to rocks in swift current. Sewellia also have paired fins with a single simple ray and numerous branched rays allowing them to grip rocks in swift current.
Lepidocephalus is a genus of loaches native to rivers in the Southeast Asian countries of Indonesia, Malaysia and Thailand and Manipur, north east India. Members of this genus are known as "spirit loaches". They resemble the related kuhli loaches and Lepidocephalichthys loaches, but are more robust and generally found deep in large rivers. With little or no light in their habitat, their eyes and pigmentation are reduced to various extent. One species, L. spectrum, completely lacks pigment and eyes, similar to cavefish. They are generally poorly known, but based on the relatively few scientific museum specimens they can reach up to 8 cm (3.1 in) in standard length.
Serpenticobitis, popularly known as serpent loaches, is a small genus of loaches found in the Mekong River Basin in Southeast Asia. It is the only genus in the family Serpenticobitidae.
Syncrossus is a genus of six loaches, many of which are popular in the aquarium fish trade. They are primarily found in Southeast Asia, but S. berdmorei also occurs marginally outside this region in far northeastern India. It is one of eight genera in its family.
The Nemacheilidae, or stone loaches, are a family of cypriniform fishes that inhabit stream environments, mostly in Eurasia, with one genus, Afronemacheilus found in Africa. The family includes about 790 species.
The Gastromyzontidae are a family of loaches native to China and Southeast Asia, where typically found in streams and rivers with a fast current. The family includes about 137 species in eighteen genera. This family was resurrected by M. Kottelat in his review and revision of the loaches in 2012. They are commonly called hillstream loaches.
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