| Hemimyzon pengi | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cypriniformes |
| Family: | Balitoridae |
| Genus: | Hemimyzon |
| Species: | H. pengi |
| Binomial name | |
| Hemimyzon pengi (S. Y. Huang, 1982) | |
| Synonyms | |
| |
Hemimyzon pengi is a species of ray-finned fish in the genus Hemimyzon . Hemimyzon pengi is a freshwater fish, mainly found in China. [1]
Catfish are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive, the Mekong giant catfish from Southeast Asia, the wels catfish of Eurasia, and the piraíba of South America, to detritivores, and even to a tiny parasitic species commonly called the candiru, Vandellia cirrhosa. Neither the armour-plated types nor the naked types have scales. Despite their name, not all catfish have prominent barbels or "whiskers". Members of the Siluriformes order are defined by features of the skull and swimbladder. Catfish are of considerable commercial importance; many of the larger species are farmed or fished for food. Many of the smaller species, particularly the genus Corydoras, are important in the aquarium hobby. Many catfish are nocturnal, but others are crepuscular or diurnal.
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.
Pengi is a game for the Acorn Electron and BBC Micro, released by Visions Software in 1984. It is a direct clone of the 1982 Sega arcade game Pengo, even down to calling the enemies "snow bees," as in the original.
Fish are aquatic, craniate, gill-bearing 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 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 megalopseos is a species of ray-finned fish in the genus Hemimyzon.
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 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.
Xiyunykus is an alvarezsaur from the Early Cretaceous of the Tugulu Group of China. It includes one species, Xiyunykus pengi.