''Pareuchiloglanis'' is a genus of sisorid catfishes native to Asia. These species are rheophilic catfish chiefly found in the headwaters of major rivers in South and East Asia. They originate from the

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 ...

drainage in India, east and south to the Yangtze drainage in

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 ...

and the

Annamese Cordillera The Annamite Range or the Annamese Mountains (french: Chaîne annamitique; lo, ພູ ຫລວງ ''Phou Luang''; vi, Dãy (núi) Trường Sơn) is a major mountain range of eastern Indochina, extending approximately through Laos, Vietnam ...

drainages in southern Vietnam. Two species are known from the Mekong River: ''P. myzostoma'' and ''P. gracilicaudata''. Four species are known from the (upper Mekong River) drainage of China: ''P. abbreviatus'', ''P. gracilicaudata'', ''P. myzostoma'' and ''P. prolixdorsalis''.

Taxonomy

The monophyly of this genus remains doubtful. In 2007, a study rejected the monophyly of this genus. The premaxillary tooth bands in the catfish tribe Glyptosternina are important in identifying genera; in ''Pareuchiloglanis'', the tooth band is divided into two patches, appearing in two types. In one type, the premaxillary tooth patches appear separate, divided down the middle by a deeper indentation; this type is characteristic in ''P. feae''. This group is distributed in and to the west of the

Lancangjiang River The Mekong or Mekong River is a trans-boundary river in East Asia and Southeast Asia. It is the world's twelfth longest river and the third longest in Asia. Its estimated length is , and it drains an area of , discharging of water annuall ...

and overlaps the distribution of ''

Oreoglanis ''Oreoglanis'' is a genus of fish in the family Sisoridae native to Asia. These fish live in fast-flowing streams in China, mainland Southeast Asia and the Indian subcontinent. They are mainly distributed in the Mekong, upper Salween and Irrawad ...

'', ''

Pseudexostoma ''Pseudexostoma'' is a genus of fish in the family Sisoridae endemic to China. These species are restricted to the upper Salween (Nujiang River) and one upper branch of the Irrawaddy ( Dayinjiang River) in China. ''P. brachysoma'' is known only ...

'' and ''

Exostoma ''Exostoma'' is a genus of sisorid catfishes native to Asia. These species are distributed in the Brahmaputra drainage of northeast India, and east and south to the Salween drainages in Burma. ''E. berdmorei'' is found in the Sittang and Salween ...

''. In the other type, the premaxillary tooth patches appear to be joined with a shallow indentation in the middle; this type is characteristic of all other species of ''Pareuchiloglanis''. This group is distributed in and to the east of the Lancangjiang.

Species

There are currently 21 recognized species in this genus: * ''

Pareuchiloglanis abbreviata ''Pareuchiloglanis'' is a genus of sisorid catfishes native to Asia. These species are rheophilic catfish chiefly found in the headwaters of major rivers in South and East Asia. They originate from the Brahmaputra drainage in India, east and sou ...

'' X. Li, W. Zhou, A. W. Thomson, Q. Zhang & Y. Yang, 2007 * ''

Pareuchiloglanis anteanalis ''Pareuchiloglanis'' is a genus of sisorid catfishes native to Asia. These species are rheophilic catfish chiefly found in the headwaters of major rivers in South and East Asia. They originate from the Brahmaputra drainage in India, east and sou ...

'' S. M. Fang, T. Q. Xu & G. H. Cui, 1984 * ''

Pareuchiloglanis brevicaudatus ''Pareuchiloglanis'' is a genus of sisorid catfishes native to Asia. These species are rheophilic catfish chiefly found in the headwaters of major rivers in South and East Asia. They originate from the Brahmaputra drainage in India, east and sou ...

'' V. H. Nguyễn, 2005 * '' Pareuchiloglanis dorsoarcus'' ( V. H. Nguyễn, 2005) * '' Pareuchiloglanis feae'' ( Vinciguerra, 1890) * '' Pareuchiloglanis gracilicaudata'' ( Y. F. Wu & Y. Chen, 1979) * '' Pareuchiloglanis hupingshanensis'' Z. J. Kang, Y. X. Chen & D. K. He, 2016 Kang, Z., Chen, Y. & He, D. (2016): ''Pareuchiloglanis hupingshanensis'', a new species of the glyptosternine catfish (Siluriformes: Sisoridae) from the middle Yangtze River, China. ''Zootaxa, 4083 (1): 109-125.'' * '' Pareuchiloglanis longicauda'' ( P. Q. Yue, 1981) * '' Pareuchiloglanis macrotrema'' (

Norman Norman or Normans may refer to: Ethnic and cultural identity * The Normans, a people partly descended from Norse Vikings who settled in the territory of Normandy in France in the 10th and 11th centuries ** People or things connected with the Norm ...

, 1925) * '' Pareuchiloglanis myzostoma'' (

, 1923) * '' Pareuchiloglanis namdeensis'' V. H. Nguyễn, 2005 * '' Pareuchiloglanis nebulifera'' H. H. Ng &

Kottelat Maurice Kottelat (born 16 July 1957 in Delémont, SwitzerlandC ...

, 2000 * '' Pareuchiloglanis phongthoensis'' ( V. H. Nguyễn, 2005) * '' Pareuchiloglanis poilanei'' Pellegrin, 1936 * '' Pareuchiloglanis prolixdorsalis'' X. Li, W. Zhou, A. W. Thomson, Q. Zhang & Y. Yang, 2007 * '' Pareuchiloglanis rhabdura'' H. H. Ng, 2004 * ''

Pareuchiloglanis robusta ''Pareuchiloglanis'' is a genus of sisorid catfishes native to Asia. These species are rheophilic catfish chiefly found in the headwaters of major rivers in South and East Asia. They originate from the Brahmaputra drainage in India, east an ...

'' R. H. Ding, T. Y. Fu & M. R. Ye, 1991 * '' Pareuchiloglanis sichuanensis'' R. H. Ding, T. Y. Fu & M. R. Ye, 1991 * '' Pareuchiloglanis sinensis'' ( Hora & Silas, 1952) * '' Pareuchiloglanis songdaensis'' H. D. Nguyễn & V. H. Nguyễn, 2001 * '' Pareuchiloglanis tamduongensis'' V. H. Nguyễn, 2005 * '' Pareuchiloglanis tianquanensis'' R. H. Ding & S. G. Fang, 1997

Description

''Pareuchiloglanis'' species have an interrupted groove behind their lips (post-labial groove), gill openings not extending onto the underside (venter),

homodont In anatomy, a heterodont (from Greek, meaning 'different teeth') is an animal which possesses more than a single tooth morphology. In vertebrates, heterodont pertains to animals where teeth are differentiated into different forms. For example ...

dentition of pointed teeth in both jaws, tooth patches in the upper jaw joined into a band and not produced posteriorly at sides, and 13–16 branched pectoral rays. The head is depressed and the body is elongate and depressed anteriorly. The skin is smooth dorsally, but it is often tuberculate ventrally. The eyes are minute, dorsal, and under the skin (subcutaneous). The lips are thick, fleshy, and papillated. The paired fins are plaited to form an adhesive apparatus.

References

{{Taxonbar, from=Q5014450 Sisoridae Catfish of Asia Freshwater fish genera Catfish genera Taxa named by Jacques Pellegrin