''Gagata'' 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 ...

sisorid catfish Sisoridae is a family of catfishes. These Asian catfishes live in fast-moving waters and often have adaptations that allow them to adhere to objects in their habitats. The family includes about 235 species. Taxonomy The family Sisoridae is recog ...

es native to

Asia Asia ( , ) is the largest continent in the world by both land area and population. It covers an area of more than 44 million square kilometres, about 30% of Earth's total land area and 8% of Earth's total surface area. The continent, which ...

Species

There are currently eight recognized species in this genus: * '' Gagata cenia'' (

Hamilton Hamilton may refer to: * Alexander Hamilton (1755/1757–1804), first U.S. Secretary of the Treasury and one of the Founding Fathers of the United States * ''Hamilton'' (musical), a 2015 Broadway musical by Lin-Manuel Miranda ** ''Hamilton'' (al ...

, 1822) * '' Gagata dolichonema'' ( He, 1996) * '' Gagata gagata'' (

, 1822) * '' Gagata itchkeea'' (

Sykes "Sykes" is a surname of Anglo-Saxon English origins, which generally has topographical roots as it original linguistic origin. The name derives from the Old Norse word "sík" or "síkja", meaning a small stream, marshy hollow, or gully. It eventua ...

, 1839) * '' Gagata melanopterus'' ( Roberts &

Ferraris Ferrari S.p.A. (; ) is an Italian luxury sports car manufacturer based in Maranello. Founded in 1939 by Enzo Ferrari (1898–1988), the company built Auto Avio Costruzioni 815, its first car in 1940, adopted its current name in 1945, and be ...

, 1998) * ''

Gagata pakistanica ''Gagata'' is a genus of sisorid catfishes native to Asia. Species There are currently eight recognized species in this genus: * ''Gagata cenia'' (Francis Buchanan-Hamilton, Hamilton, 1822) * ''Gagata dolichonema'' (He Shun-Ping, He, 1996) * ''G ...

'' (

Mirza Mirza may refer to: * Mirza (name), a name derived from a historical royal and noble title * ''Mirza'' (lemur), a genus of giant mouse lemurs * "Mirza", a 1965 French-language song by Nino Ferrer * Mirza, Kamrup, a town in Assam, India * Mirza me ...

, Parveen & Javed, 1999) * '' Gagata sexualis'' ( Tilak, 1970) * '' Gagata youssoufi'' (Ataur Rahman, 1976)

Distribution

''Gagata'' species are distributed in the

Indus The Indus ( ) is a transboundary river of Asia and a trans- Himalayan river of South and Central Asia. The river rises in mountain springs northeast of Mount Kailash in the Western Tibet region of China, flows northwest through the dis ...

drainage in

Pakistan Pakistan, officially the Islamic Republic of Pakistan, is a country in South Asia. It is the List of countries and dependencies by population, fifth-most populous country, with a population of over 241.5 million, having the Islam by country# ...

and

India India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...

, east and south (including peninsular India) to the Tenasserim drainages in

Burma Myanmar, officially the Republic of the Union of Myanmar; and also referred to as Burma (the official English name until 1989), is a country in northwest Southeast Asia. It is the largest country by area in Mainland Southeast Asia and ha ...

. ''G. cenia'' originates from the Indus,

Mahanadi The Mahanadi River is a major river in East Central India. It drains an area of around and has a total length of . Mahanadi is also known for the Hirakud Dam which was the first major multipurpose river valley project after India's independenc ...

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 which goes through India, Bangladesh, Nepal and China." is a trans-boundary rive ...

, and

Brahmaputra The Brahmaputra is a trans-boundary river which flows through Southwestern China, Northeastern India, and Bangladesh. It is known as Brahmaputra or Luit in Assamese, Yarlung Tsangpo in Tibetan, the Siang/Dihang River in Arunachali, and ...

drainages in Pakistan, India, Bangladesh, Burma and possibly

Nepal Nepal, officially the Federal Democratic Republic of Nepal, is a landlocked country in South Asia. It is mainly situated in the Himalayas, but also includes parts of the Indo-Gangetic Plain. It borders the Tibet Autonomous Region of China Ch ...

; it is also reported from the

Irrawaddy Irrawaddy or Ayeyarwady may refer to: *Irrawaddy River, the main river of Burma *Irrawaddy Delta, a rice growing region of the country *Irrawaddy, an alternative spelling of Ayeyarwady Region, an administrative division of Burma *''The Irrawaddy'' ...

drainage and

Salween The Salween is a Southeast Asian river, about long, flowing from the Tibetan Plateau south into the Andaman Sea. The Salween flows primarily within southwest China and eastern Myanmar, with a short section forming the border of Myanmar and Tha ...

drainage. ''G. dolichonema'' inhabits the upper Salween River basin in

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 ...

and the Irrawaddy, Salween, and Tenasserim River basins in Burma. ''G. gagata'' is from the Ganges drainage in India and Bangladesh and is reported from the Brahmaputra and Irrawaddy drainages. ''G. itchkeea'' is known from the

Narmada The Narmada River, previously also known as ''Narbada'' or anglicised as ''Nerbudda'', is the 5th longest river in India and overall the longest west-flowing river in the country. It is also the largest flowing river in the state of Madhya Prade ...

Krishna Krishna (; Sanskrit language, Sanskrit: कृष्ण, ) is a major deity in Hinduism. He is worshipped as the eighth avatar of Vishnu and also as the Supreme God (Hinduism), Supreme God in his own right. He is the god of protection, c ...

, and

Cauvery The Kaveri (also known as Cauvery) is a major river flowing across Southern India. It is the third largest river in the region after Godavari and Krishna. The catchment area of the Kaveri basin is estimated to be and encompasses the states o ...

drainages in peninsular India, though its presence in the Cauvery needs to be confirmed. ''G. melanoptera'' is distributed in the Irrawaddy,

Rangoon Yangon, formerly romanized as Rangoon, is the capital of the Yangon Region and the largest city of Myanmar. Yangon was the List of capitals of Myanmar, capital of Myanmar until 2005 and served as such until 2006, when the State Peace and Dev ...

, Sittang, and lower Salween drainages in Burma. ''G. pakistanica'' is from the Indus drainage in Pakistan. ''G. sexualis'' originates from the Ganges and Brahmaputra drainages in India, Bangladesh and Nepal.

Description

''Gagata'' species have a compressed head, eyes on side of the head, a depressed snout, small conical teeth in lower jaw, branchiostegal membranes broadly fused to

isthmus An isthmus (; : isthmuses or isthmi) is a narrow piece of land connecting two larger areas across an expanse of water by which they are otherwise separated. A tombolo is an isthmus that consists of a spit or bar, and a strait is the sea count ...

, no serrations on anterior margin of pectoral spine but serrate posteriorly, no well-developed maxillary barbel membrane, outer and inner mental barbels close together with their origins nearly parallel in a transverse line, short nasal and maxillary barbels, and a lack of palatal teeth. ''Gagata'' species have a great range in lengths, from 5.8 centimetres (2.3 in) TL in ''G. sexualis'' and 7.6 cm (3.0 in) TL in ''G. itchkeea'', to 15.0 cm (5.9 in) SL in ''G. cenia'' and 15.8 cm (6.2 in) SL in ''G. melanoptera'', to 30.5 cm (12.0 in) TL in ''G. gagata''.

References

{{Taxonbar, from=Q2128229 Sisoridae Fish of South Asia Fish of Southeast Asia Freshwater fish genera Catfish genera Taxa named by Pieter Bleeker