Cypriniformes is an order of ray-finned fish, which includes many families and genera of cyprinid fish, such as barbs, gobies, loaches, botias, and minnows. Cypriniformes is an “order-within-an-order”, placed under the superorder Ostariophysi—which is also made up of cyprinid, ostariophysin fishes. The order contains 11-12 families, over 400 genera, and more than 4,250 named species; new species are regularly described, and new genera are recognized frequently. Cyprinids are most diverse in South and Southeast Asia, but are entirely absent from Australia and South America. At 112 years old, the longest-lived cypriniform fish documented is the bigmouth buffalo.
Psilorhynchus balitora or Balitora minnow is a species of torrent minnow found in South Asia. It is found in the drainage basins of the Ganges and the Brahmaputra in eastern Nepal, northeast Bangladesh and adjacent West Bengal and northwest Assam. It can be found in hill streams and in rapids with substrates consisting of pebbles or sand, preferring hard substrates. It is exported as an aquarium fish.
Psilorhynchus is a genus of fish in the family Psilorhynchidae native to South Asia. This genus is the only member of its family. The members of Psilorhynchus are small benthic fishes which occur in rivers and streams with fast to swift currents, hence they are often referred to a torrent minnows. They are distributed in southern Asia, in the Indo-Burma region and the Western Ghats.
Psilorhynchus amplicephalus is a freshwater ray-finned fish, from the Balishwar river in Assam, India. It can be found in rivers with a stronger current and sandy substrate, it prefers a sandy substrate with the horizontally placed pectoral fin suited to allow the fish to resist the current.
Psilorhynchus microphthalmus is a freshwater ray-finned fish, a torrent minnow. It is restricted to the Chapki Stream in the Chindwin basin of Manipur, India. It is found in flowing water with a rock substrate. This species is threatened from the effects of the use of poisons and explosives for fishing and the sedimentation of its habitat caused by deforestation and slash and burn agriculture.
Psilorhynchus breviminor is a freshwater ray-finned fish, a torrent minnow, in the genus Psilorhynchus. It is only known from the Ma Gawe River, close to the Kalaw-Thazi highway, near the state border between Mandalay and Shan near the village of Nampantet in Myanmar. It was collected from algal mats, where it seemed to be either resting or feedingin a cool, fast-flowing stream which had a bed made up of sand and gravel and a depth of 30 cm.
Psilorhynchus pseudecheneis, also known as the Nepalese minnow or stone carp, is a species of freshwater ray-finned fish, a torrent minnow. it inhabits torrential streams and it is adapted to such a habitat by possessing am increased count of simple rays in the pectoral fins and in having transverse folds in the skin on its underside which allow it to cling to rocks in the swift current. It is found in eastern Nepal and has recently been recorded from India, it is a migratory species. The specific name pseudecheneis is a compound of the Greek pseudo meaning "false" and echeneis which means a "sucker fish", probably a reference to the fact that the torrent minnows use their pectoral fin rays to adhere to the substrate rather than having a suckermouth.
Psilorhynchus sucatio, the river stone carp or sucatio minnow, is freshwater ray-finned fish a species of torrent minnow. The specific name is a latinization of one of the local names for this species, sukati. It is a widely distributed species and is found in Nepal and Bangladesh as well as the Indian states of Arunachal Pradesh, Assam, Bihar, Manipur, Meghalaya, Nagaland, Uttar Pradesh and West Bengal. P. sucatio occurs in water with a fast current preferring the edges of sandy streams. In the lowlands it is abundant near emergent or overhanging vegetation, it is an altitudinal migrant. At a maximum length of 5 cm it is too small to be of any interest to fisheries but it is collected for the aquarium trade. It is the type species of the genus Psilorhynchus.
Psilorhynchus robustus is an Asian freshwater ray-finned fish of the torrent minnow genus Psilorhynchus. It is benthopelagic and found in the headwaters of the Ataran River basin in Burma (Myanmar).
Psilorhynchus rahmani is a freshwater ray-finned fish a torrent minnow which is found in a small, well oxygenated hill stream near Chittagong University in Hathazari Upazila in the Chittagong Division of Bangladesh. The specific name honours A. K. Ataur Rahman of the Department of Fisheries in Dhaka, for his contribution to the ichthyology of Bangladesh.
Psilorhynchus tenura is a critically endangered fish found in genus Psilorhynchus. It is endemic to the Western Ghats of Karnataka, India, where it is restricted to two locations on the Tunga River near Sringeri and also at Korkanhalla inside Kudremukh National Park in Karnataka. It is found in streams and rivers with beds made up of sand, pebbles and gravel.
Psilorhynchus arunachalensis is a species of torrent minnow. It is a freshwater benthopelagic fish and which is found in Arunachal Pradesh.
Homaloptera confuzona is a species of hillstream loach in the genus Homaloptera found in Laos, Cambodia and Thailand. It lives in the lower Mekong drainage and coastal streams of Cambodia and eastern Thailand. Its maximum size is about 40 cm (16 in) SL.
Homaloptera ocellata is a species of ray-finned fish in the genus Homaloptera found in Sumatra and Java in Indonesia.
Homaloptera ogilviei is a species of ray-finned fish in the genus Homaloptera found in Malaysia and western Borneo.
Homaloptera orthogoniata is a species of ray-finned fish in the genus Homaloptera found in Thailand, Laos and Indonesia.
Homaloptera parclitella is a species of ray-finned fish in the genus Homaloptera found in Malay Peninsula.
The frail gourami or noble gourami is a mouth brooding species of gourami native to northeastern India and Bangladesh. This species grows to a length of 10 cm (3.9 in). It is only seldom found in the aquarium trade, courtesy of its extreme sensitivity to shipping stress and high levels of aggression. This species is the only known member of its genus.
Ghatsa is a genus of ray-finned fish in the family Balitoridae. This genus is created for species previously assigned to Homaloptera from the Western Ghats of India.
Psilorhynchus nudithoracicus also known as the rainbow minnow is a freshwater ray-finned fish, a torrent minnow, which is found in the drainage systems of the Ganges and the Brahmaputra in India, Nepal and Bangladesh, as well as the Meghna River and Surma River drainage basins in India and Bangladesh. the habitat of this species is shallow running streams with sandy bottoms, usually with some pebbles laying on the sand. This species reaches a length of 8.4 cm (3.3 in).
