''Pseudobagarius'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

catfish Catfish (or catfishes; order (biology), order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Catfish are common name, named for their prominent barbel (anatomy), barbels, which resemble a cat's whiskers, though not ...

es (

order Order, ORDER or Orders may refer to: * A socio-political or established or existing order, e.g. World order, Ancien Regime, Pax Britannica * Categorization, the process in which ideas and objects are recognized, differentiated, and understood ...

Siluriformes) of the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Akysidae The stream catfishes comprise the family Akysidae of catfishes. Distribution and habitat Akysids are known from across a large area in Southeast Asia. They are found in fresh water. Fish of the subfamily Parakysinae are primarily found in the Mal ...

Taxonomy

''Pseudobagarius'' includes

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

that were originally part of the ''pseudobagarius'' group of the genus ''

Akysis ''Akysis'' is the largest genus of catfishes (order Siluriformes) of the family Akysidae. Taxonomy In 1996, it was determined that ''Akysis'' is the sister group to all other akysids, then only including ''Parakysis'', ''Acrochordonichthys'', an ...

''. This group was first recognized in 1998; the authors recognized it as conceivable that this group and the ''Akysis variegatus'' represented two genera, but tentatively retained the species in a single genus. The genus was erected for these species in 2007.

Distribution and habitat

''Pseudobagarius'' species are from

Southeast Asia Southeast Asia is the geographical United Nations geoscheme for Asia#South-eastern Asia, southeastern region of Asia, consisting of the regions that are situated south of China, east of the Indian subcontinent, and northwest of the Mainland Au ...

, including

Borneo Borneo () is the List of islands by area, third-largest island in the world, with an area of , and population of 23,053,723 (2020 national censuses). Situated at the geographic centre of Maritime Southeast Asia, it is one of the Greater Sunda ...

Cambodia Cambodia, officially the Kingdom of Cambodia, is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. It is bordered by Thailand to the northwest, Laos to the north, and Vietnam to the east, and has a coastline ...

China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

Laos Laos, officially the Lao People's Democratic Republic (LPDR), is the only landlocked country in Southeast Asia. It is bordered by Myanmar and China to the northwest, Vietnam to the east, Cambodia to the southeast, and Thailand to the west and ...

Thailand Thailand, officially the Kingdom of Thailand and historically known as Siam (the official name until 1939), is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. With a population of almost 66 million, it spa ...

, and

Vietnam Vietnam, officially the Socialist Republic of Vietnam (SRV), is a country at the eastern edge of mainland Southeast Asia, with an area of about and a population of over 100 million, making it the world's List of countries and depende ...

. ''Pseudobagarius'' species typically inhabit clear, swiftly flowing upland streams with sandy or rocky substrates. However, ''P. similis'' is known to occur in

brackish water Brackish water, sometimes termed brack water, is water occurring in a natural environment that has more salinity than freshwater, but not as much as seawater. It may result from mixing seawater (salt water) and fresh water together, as in estuary ...

Description

''Pseudobagarius'' species are akysids with the snout extending well anterior of the margin of lower jaw (which renders the mouth subterminal), the anterior and posterior nostrils relatively large and closely set (separated only by the base of the nasal barbel), and the

caudal fin Fins are moving appendages protruding from the body of fish that interact with water to generate thrust and help the fish swim. Apart from the tail or caudal fin, fish fins have no direct connection with the back bone and are supported only ...

deeply forked.

Species

* ''

Pseudobagarius alfredi ''Pseudobagarius'' is a genus of catfishes (order (biology), order Siluriformes) of the family (biology), family Akysidae. Taxonomy ''Pseudobagarius'' includes species that were originally part of the ''pseudobagarius'' group of the genus ''Akys ...

'' ( H. H. Ng & Kottelat, 1998) * '' Pseudobagarius baramensis'' ( Fowler, 1905) * '' Pseudobagarius filifer'' ( H. H. Ng & Rainboth, 2005) * ''

Pseudobagarius fuscus ''Pseudobagarius'' is a genus of catfishes (order Siluriformes) of the family Akysidae. Taxonomy ''Pseudobagarius'' includes species that were originally part of the ''pseudobagarius'' group of the genus ''Akysis''. This group was first recogniz ...

'' ( H. H. Ng & Kottelat, 1996) * ''

Pseudobagarius hardmani ''Pseudobagarius'' is a genus of catfishes (order Siluriformes) of the family Akysidae. Taxonomy ''Pseudobagarius'' includes species that were originally part of the ''pseudobagarius'' group of the genus ''Akysis''. This group was first recogniz ...

'' ( H. H. Ng & Sabaj Pérez, 2005) * ''

Pseudobagarius inermis ''Pseudobagarius'' is a genus of catfishes (order Siluriformes) of the family Akysidae. Taxonomy ''Pseudobagarius'' includes species that were originally part of the ''pseudobagarius'' group of the genus ''Akysis''. This group was first recogniz ...

'' ( H. H. Ng & Kottelat, 2000) * ''

Pseudobagarius leucorhynchus ''Pseudobagarius'' is a genus of catfishes (order Siluriformes) of the family Akysidae. Taxonomy ''Pseudobagarius'' includes species that were originally part of the ''pseudobagarius'' group of the genus ''Akysis''. This group was first recogniz ...

'' ( Fowler, 1934) * '' Pseudobagarius macronemus'' ( Bleeker, 1860) * '' Pseudobagarius meridionalis'' ( H. H. Ng & Siebert, 2004) * '' Pseudobagarius nitidus'' ( H. H. Ng & Rainboth, 2005) * '' Pseudobagarius pseudobagarius'' ( Roberts, 1989) * '' Pseudobagarius similis'' ( H. H. Ng & Kottelat, 1998) * '' Pseudobagarius sinensis'' ( He, 1981) * ''

Pseudobagarius subtilis ''Pseudobagarius'' is a genus of catfishes (order Siluriformes) of the family Akysidae. Taxonomy ''Pseudobagarius'' includes species that were originally part of the ''pseudobagarius'' group of the genus ''Akysis''. This group was first recogniz ...

'' ( H. H. Ng & Kottelat, 1998)

References

* Akysidae Fish of Southeast Asia Fish of Cambodia Fish of China Fish of Indonesia Fish of Laos Fish of Malaysia Fish of Thailand Fish of Vietnam Catfish genera Taxa named by Carl J. Ferraris Jr. Freshwater fish genera {{catfish-stub