''Pseudecheneis'' 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 ...

of sisorid catfishes 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 19 recognized species in this genus: * '' Pseudecheneis brachyurus'' W. Zhou, X. Li & Y. Yang, 2008 * '' Pseudecheneis crassicauda'' H. H. Ng & Edds, 2005 * '' Pseudecheneis eddsi'' H. H. Ng, 2006 * '' Pseudecheneis gracilis'' W. Zhou, X. Li & Y. Yang, 2008 * '' Pseudecheneis immaculatus'' X. L. Chu, 1982 * '' Pseudecheneis koladynae'' Anganthoibi & Vishwanath, 2010 * '' Pseudecheneis longipectoralis'' W. Zhou, X. Li & Y. Yang, 2008 * '' Pseudecheneis maurus'' H. H. Ng & H. H. Tan, 2007 * '' Pseudecheneis paucipunctatus'' W. Zhou, X. Li & Y. Yang, 2008 * '' Pseudecheneis paviei'' Vaillant, 1892 * '' Pseudecheneis serracula'' H. H. Ng & Edds, 2005 * '' Pseudecheneis sirenica'' Vishwanath &

Darshan Darshan, a Sanskrit word meaning "sight" or "viewing", may refer to: Ceremony and religion * Darshan (Indian religions), the auspicious sight of a divine image or holy person; also a school of Hindu philosophy * Darshan (Judaism), a Scriptural ...

, 2007 * '' Pseudecheneis stenura'' H. H. Ng, 2006 * '' Pseudecheneis sulcata'' (

McClelland McClelland is a surname. Notable people with the surname include: * Alyssa McClelland, Australian actress * Anthony McClelland, biological father of Lebron James * Charles A. McClelland (1917–2006), American political systems analyst * Charles ...

, 1842) (Sucker throat catfish) * '' Pseudecheneis sulcatoides'' W. Zhou & X. L. Chu, 1992 * '' Pseudecheneis suppaetula'' H. H. Ng, 2006 * '' Pseudecheneis sympelvica'' T. R. Roberts, 1998 * '' Pseudecheneis tchangi'' ( Hora, 1937) * '' Pseudecheneis ukhrulensis'' Vishwanath &

, 2007

Distribution

''Pseudecheneis'' species are

rheophilic A rheophile is an animal that prefers to live in fast-moving water. Examples of rheophilic animals Insects *Many aquatic insects living in riffles require current to survive. *'' Epeorus sylvicola'', a rheophilic mayfly species ( Ephemeroptera ...

fish that occur in the headwaters of major river drainages throughout South and Southeast Asia. They are found in the upper reaches of rivers throughout the Sub

himalaya The Himalayas, or Himalaya ( ), is a mountain range in Asia, separating the plains of the Indian subcontinent from the Tibetan Plateau. The range has some of the Earth's highest peaks, including the highest, Mount Everest. More than 100 pea ...

n and

Indochinese Mainland Southeast Asia (historically known as Indochina and the Indochinese Peninsula) 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 th ...

region. They are distributed in 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 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 of northern

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 ...

and

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 ...

and eastwards to the

Ailao Mountains The Ailao Mountains are located in Yunnan, China. They extend northward from the Yun range, and are located at the intersection of the Yunnan-Guizhou Plateau, the Tibetan Plateau, and the Hengduan Mountains. The Ailao Mountain Nature Reserv ...

along the upper Red River drainage of

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 ...

and the

Annamese Cordillera The Annamite Range (; ) is a major mountain range of Mainland Southeast Asia, extending approximately through Laos, Vietnam, and a small area in northeast Cambodia. Geography The highest points of the Annamite Range are the -high Phou Bia, th ...

. ''P. maurus'' represents the first record of the genus on the rivers draining to the eastern face of the Annamese Cordillera.

Description

''Pseudecheneis'' species are easily distinguished among sisorids in having a thoracic adhesive apparatus consisting of a series of transverse ridges (laminae) separated by grooves (sulcae). The

dorsal Dorsal (from Latin ''dorsum'' ‘back’) may refer to: * Dorsal (anatomy), an anatomical term of location referring to the back or upper side of an organism or parts of an organism * Dorsal, positioned on top of an aircraft's fuselage The fus ...

and

pectoral fin Fins are moving appendages protruding from the body of fish that interact with water to generate thrust and help the fish aquatic locomotion, swim. Apart from the tail or caudal fin, fish fins have no direct connection with the vertebral column ...

s have one spine each. The head is short and anteriorly depressed with a sharp snout and small mouth. The lips are thick, fleshy, and

papilla Papilla (Latin, 'nipple') or papillae may refer to: In animals * Papilla (fish anatomy), in the mouth of fish * Papilla (worms), small bumps on the surface of certain worms * Basilar papilla, a sensory organ of lizards, amphibians and fish * ...

te. The body is elongate, from moderately to greatly depressed. The eyes are small and dorsally-located. The skin is smooth. Mouth small. The maxillary

barbels In fish anatomy and turtle anatomy, a barbel is a slender, whisker like sensory organ near the mouth (sometimes called whiskers or tendrils). Fish that have barbels include the catfish, the carp, the goatfish, the hagfish, the sturgeon, the z ...

are very short. The mandibular barbels are

papillate This glossary of botanical terms is a list of definitions of terms and concepts relevant to botany and plants in general. Terms of plant morphology are included here as well as at the more specific Glossary of plant morphology and Glossary ...

. The gill openings are narrow. Paired fins are plaited to form an adhesive apparatus.

References

{{Taxonbar, from=Q5028154 Sisoridae Freshwater fish genera Fish of China Fish of India Fish of Nepal Fish of Vietnam Catfish genera Taxa named by Edward Blyth