genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of
catfish
Catfish (or catfishes; order Siluriformes or Nematognathi) 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, ...
family
Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...
Bagridae
The Bagridae are a family of catfish that are native to Africa ('' Bagrus'') and Asia (all other genera) from Japan to Borneo. It includes about 245 species. These fish are commonly known as naked catfishes or bagrid catfishes.
Many large bagrid ...
.
The genus ''Hemibagrus'' is known from
Southeast Asia
Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical United Nations geoscheme for Asia#South-eastern Asia, south-eastern region of Asia, consistin ...
,
India
India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...
, and southern
China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
. Members of this genus are found ubiquitously in river drainages east of the
Ganges
The Ganges ( ) (in India: Ganga ( ); in Bangladesh: Padma ( )). "The Ganges Basin, known in India as the Ganga and in Bangladesh as the Padma, is an international river to which India, Bangladesh, Nepal and China are the riparian states." is ...
-
Brahmaputra
The Brahmaputra is a trans-boundary river which flows through Tibet, northeast India, and Bangladesh. It is also known as the Yarlung Tsangpo in Tibetan, the Siang/Dihang River in Arunachali, Luit in Assamese, and Jamuna River in Bangla. It ...
basin and south of the
Yangtze
The Yangtze or Yangzi ( or ; ) is the longest river in Asia, the third-longest in the world, and the longest in the world to flow entirely within one country. It rises at Jari Hill in the Tanggula Mountains (Tibetan Plateau) and flows ...
basin, and reach their greatest diversity in
Sundaland
Sundaland (also called Sundaica or the Sundaic region) is a biogeographical region of South-eastern Asia corresponding to a larger landmass that was exposed throughout the last 2.6 million years during periods when sea levels were lower. It ...
.
This genus consists of large-sized catfishes. '' H. wyckioides'' is the largest Bagrid catfish in central
Indochina
Mainland Southeast Asia, also known as the Indochinese Peninsula or Indochina, is the continental portion of Southeast Asia. It lies east of the Indian subcontinent and south of Mainland China and is bordered by the Indian Ocean to the west an ...
and may reach 80 kilograms. It includes species with depressed (flattened) heads, rugose (ridged or wrinkled) head shields not covered by skin, and moderately long
adipose fin
Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as s ...
s.
In Southeast Asia, ''Hemibagrus'' species are an important source of animal protein.
The extinct species, '' H. major'', is a fossil species from a
Miocene
The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recen ...
lake fauna from what is now Ban Nong Pia,
Phetchabun
Phetchabun is a town (''thesaban mueang'') in Thailand, capital of Phetchabun Province. It covers the ''tambon'' Nai Mueang of the Phetchabun District, along the Pa Sak River. As of 2005, it had a population of 23,823. Phetchabun lies north of ...
Province of
Thailand
Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is bo ...
.
Species
There are currently 41 recognized species in this genus:
* ''
Hemibagrus amemiyai
''Hemibagrus amemiyai'' is a species of bagrid catfish found in Howchan in Szechwan Province in China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's List of countries and dependenc ...
Hemibagrus baramensis
''Hemibagrus baramensis'' is a species of bagrid catfish found in northern Borneo
Borneo (; id, Kalimantan) is the third-largest island in the world and the largest in Asia. At the geographic centre of Maritime Southeast Asia, in relati ...
'' (
Regan
The family name Regan, along with its cognates O'Regan, O Regan, Reagan, and O'Reagan, is an Anglicized form of the Irish surname Ó Riagáin or Ó Ríogáin, from Ua Riagáin. The meaning is likely to have originated in ancient Gaelic ''ri'' ...
, 1906)
* ''
Hemibagrus bongan
''Hemibagrus bongan'' is a species of bagrid catfish found in Asia
Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares th ...
Hemibagrus camthuyensis
''Hemibagrus camthuyensis'' is a species of bagrid catfish found in Vietnam
Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainl ...
Hemibagrus chrysops
''Hemibagrus chrysops'' is a species of bagrid catfish
The Bagridae are a family of catfish that are native to Africa ('' Bagrus'') and Asia (all other genera) from Japan to Borneo. It includes about 245 species. These fish are commonly known ...
Bleeker Bleeker is a Dutch occupational surname. Bleeker is an old spelling of ''(linnen)bleker'' ("linen bleacher").Hemibagrus maydelli
''Hemibagrus'' is a genus of catfishes (order Siluriformes) of the family Bagridae.
The genus ''Hemibagrus'' is known from Southeast Asia, India, and southern China. Members of this genus are found ubiquitously in river drainages east of the Ga ...
Valenciennes
Valenciennes (, also , , ; nl, label=also Dutch, Valencijn; pcd, Valincyinnes or ; la, Valentianae) is a commune in the Nord department, Hauts-de-France, France.
It lies on the Scheldt () river. Although the city and region experienced a s ...
Hemibagrus planiceps
''Hemibagrus'' is a genus of catfishes (order Siluriformes) of the family Bagridae.
The genus ''Hemibagrus'' is known from Southeast Asia, India, and southern China. Members of this genus are found ubiquitously in river drainages east of the G ...
'' (
Valenciennes
Valenciennes (, also , , ; nl, label=also Dutch, Valencijn; pcd, Valincyinnes or ; la, Valentianae) is a commune in the Nord department, Hauts-de-France, France.
It lies on the Scheldt () river. Although the city and region experienced a s ...
Hemibagrus punctatus
''Hemibagrus punctatus'', or Nilgiri mystus, is a species of fish in the family Bagridae. It was first described by Jerdon in 1849. It is endemic to east-flowing rivers in the Western Ghats of India. Of these, the species is likely only found ...
Hemibagrus sabanus
''Hemibagrus'' is a genus of catfishes (order Siluriformes) of the family Bagridae.
The genus ''Hemibagrus'' is known from Southeast Asia, India, and southern China. Members of this genus are found ubiquitously in river drainages east of the Ga ...
'' (
Inger
Inger may refer to:
People
* Inger (given name), a list of people
* Inger, the main character of Hans Christian Andersen's fairy tale ''The Girl Who Trod on a Loaf''
* Robert F. Inger (1920–2019), American herpetologist
* Stella Inger, America ...
Hemibagrus vietnamicus
''Hemibagrus'' is a genus of catfishes (order Siluriformes) of the family Bagridae.
The genus ''Hemibagrus'' is known from Southeast Asia, India, and southern China. Members of this genus are found ubiquitously in river drainages east of the Ga ...
Bleeker Bleeker is a Dutch occupational surname. Bleeker is an old spelling of ''(linnen)bleker'' ("linen bleacher").Hemibagrus wyckioides
''Hemibagrus wyckioides'', the Asian redtail catfish, is a species of catfish (order Siluriformes) of the family Bagridae.
Distribution
These catfish originate from the Mekong basin, and are reported from Chao Phraya, Mae Klong, and peninsular ...