| Hemimyzon megalopseos | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cypriniformes |
| Family: | Balitoridae |
| Genus: | Hemimyzon |
| Species: | H. megalopseos |
| Binomial name | |
| Hemimyzon megalopseos Z. Y. Li & Y. R. Chen, 1985 | |
Hemimyzon megalopseos is a species of ray-finned fish in the genus Hemimyzon .
The Khone Falls and Pha Pheng Falls together form a waterfall located in Champasak Province on the Mekong River in southern Laos, near the border with Cambodia. At 35,376 feet (10,783 m) wide, it is the widest waterfall in the world.
Nam Ngum is a 354 km long river in Laos. It is a major tributary of the Mekong River.
Fish are gill-bearing aquatic craniate animals that lack limbs with digits. They form a sister group to the tunicates, together forming the olfactores. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Around 99% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with over 95% belonging to the teleost subgrouping.
Hemimyzon taitungensis is a species of ray-finned fish in the family Balitoridae that is endemic to Taiwan. It is a small freshwater fish currently known only from running waters of the Central Mountain Range of Taiwan at high and middle elevations. In contrast to H. formosanus, it appears to be a well-defined species with no signs of strong genetic structuring suggestive of cryptic species.
Hemimyzon is a genus of ray-finned fish in the family Balitoridae.
Hemimyzon confluens is a species of ray-finned fish in the genus Hemimyzon. It is known from a single location in the Nam Ngum drainage in Laos, a tributary of the Mekong. The known material suggests a maximum standard length of about 47 mm (1.9 in). H. confluens is threatened by pollution from mining activities and hydro-power development.
Hemimyzon ecdyonuroides is a species of hillstream loach in the genus Hemimyzon. It is known from two tributaries of the Mekong, from Sekong River and Sesan River drainages in Vietnam and Laos.
Hemimyzon formosanus is a species of hillstream loach in the genus Hemimyzon. It is endemic to western portion of Central Mountain Range of Taiwan. Its maximum length is 10 cm (3.9 in). Variations in nucleotide sequences within the mitochondrial control region show strong geographic structuring suggestive of a cryptic species complex.
Hemimyzon khonensis is a species of hillstream loach in the genus Hemimyzon. It is known from a single specimen collected in the Mekong at the Khone Falls in Laos, near the Cambodian border; it is named for the falls. The specimen was 51 mm (2.0 in) in standard length.
Hemimyzon macroptera is a species of hillstream loach in the genus Hemimyzon. It is found in clear-water streams with rocky bottom in the Nanpan River basin, Yunnan, China. It is naturally scarce but widespread.
Hemimyzon nanensis is a species of hillstream loach in the genus Hemimyzon. It occurs in the Chao Phraya basin, Thailand.
Hemimyzon nujiangensis is a species of hillstream loach endemic to Yunnan, China.
Hemimyzon pumilicorpora is a species of ray-finned fish in the genus Hemimyzon. it is a fresh water fish found in China. Males can reach up to 5.7 cm in length.
Hemimyzon pengi is a species of ray-finned fish in the genus Hemimyzon. Hemimyzon pengi is a freshwater fish, mainly found in China.
Hemimyzon papilio is a species of ray-finned fish in the genus Hemimyzon.
Hemimyzon sheni is a species of ray-finned fish in the genus Hemimyzon. It is only known from Tar-Ju River basin, Taitung County, southeast Taiwan, where its type locality is. Only three specimens were collected and later attempts to find more specimens have failed. Among its relatives, H. sheni most closely resembles H. formosanus, but it seems to be more a head-water species than H. formosanus. It is a small species with standard length of 5 cm (2.0 in).
Hemimyzon yaotanensis is a species of ray-finned fish in the genus Hemimyzon.
Hemimyzon elongata is a species of ray-finned fish in the genus Hemimyzon. It has been found in the Mekong basin in Yunnan, China. It is a benthopelagic, freshwater fish.
Hemimyzon tchangi is a species of ray-finned fish in the genus Hemimyzon.