Pareuchiloglanis | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | Siluriformes |
Family: | Sisoridae |
Tribe: | Glyptosternina |
Genus: | Pareuchiloglanis Pellegrin, 1936 |
Type species | |
Pareuchiloglanis poilanei Pellegrin, 1936 |
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. [1] They originate from the Brahmaputra drainage in India, east and south to the Yangtze drainage in China and the Annamese Cordillera drainages in southern Vietnam. [2] 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. [3]
The monophyly of this genus remains doubtful. [1] In 2007, a study rejected the monophyly of this genus. [4]
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 and overlaps the distribution of Oreoglanis , Pseudexostoma and Exostoma . 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. [3]
There are currently 20 recognized species in this genus:
Pareuchiloglanis species have an interrupted groove behind their lips (post-labial groove), gill openings not extending onto the underside (venter), homodont 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. [2] 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. [2]
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.
Pseudolaguvia is a genus of South Asian river catfishes. These species inhabit hill streams and large rivers. P. tenebricosa is found in fast running, clear water; the river has a sandy bottom and numerous rocks and boulders and aquatic vegetation is absent. P. inornata is from clear, shallow, moderately flowing streams with a predominantly sandy bottom. P. muricata is found in clear, shallow, slow-flowing streams with a mixed substrate of sand and detritus; these fish are found amongst detritus in areas with current. P. ferula is also found in swift flowing waters with a mixed rocky/sandy bottom.
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 Irrawaddy River drainages. They range from the Brahmaputra basin to the Lam River drainage in central Vietnam. They are easily distinguished from other catfishes by their strongly depressed head and body and greatly enlarged paired fins that have been modified to form an adhesive apparatus. The flattened shape of these fish and the large pectoral and pelvic fins provide essential adhesion in the fast-flowing waters they live in.
Glyptothorax is a genus of catfishes order Siluriformes of the family Sisoridae. It is the most species-rich and widely distributed genus in the family with new species being discovered on a regular basis. These species are distributed in the Black Sea basin, northern Turkey, south and east to the Yangtze River drainage in China and south throughout Indo-China to Java, Indonesia. They are found in Asia Minor and southwards to Southeast Asia. The genus is very diverse in the Indian subcontinent. Southeast Asian species tend to have restricted distributions.
Myersglanis is a genus of sisorid catfishes native to Asia.
Euchiloglanis is a genus of sisorid catfishes native to Asia.
Glaridoglanis andersonii is a species of catfish of the family Sisoridae. It is the only species of the monotypic genus Glaridoglanis.
Pseudecheneis is a genus of sisorid catfishes native to Asia.
Bagarius is an Asian genus of catfishes of the family Sisoridae. It includes five to six extant species and potentially one extinct fossil species, B. gigas.
Exostoma is a genus of sisorid catfishes native to Asia. These species are distributed in the Brahmaputra drainage of north-eastern India, and east and south to the Salween drainages in Burma. E. berdmorei is found in the Sittang and Salween drainages in Burma. E. labiatum is known from the Brahmaputra drainage in north-eastern India, but has also been recorded in the Salween drainage in Burma, the Ayeyarwady drainage in China, and the Brahmaputra drainage in Tibet and Burma. E. stuarti is from the Ayeyarwady River of Burma and India; however, it has not been collected since its original discovery. E. labiatum is found in mountain rapids.
Glyptosternon is a genus of sisorid catfishes native to Asia.
Gogangra is a genus of sisorid catfishes native to Asia.
Pseudexostoma is a genus of fish in the family Sisoridae endemic to China. These species are restricted to the upper Salween and one upper branch of the Irrawaddy in China. P. brachysoma is known only from the middle and lower Nujiang River. P. yunnanensis is only known from the upper Dayinjiang. These rivers were once connected, but are now separated. Also, the environment and temperature of the Nujiang River became greatly different between the northern and southern areas, leading to speciation.
Chimarrichthys kishinouyei is a species of sisorid catfish native to Asia.
Chimarrichthys davidi is a species of sisorid catfish native to Asia.
Creteuchiloglanis is a genus of sisorid catfishes native to Asia.
Chimarrichthys is a genus of fish in the family Sisoridae endemic to China.
Pseudecheneis sulcata, the sucker throat catfish, is a species of sisorid catfish. It is found in India, Nepal and Bangladesh.
Exostoma peregrinator is a species of sisorid catfish in the family Sisoridae. It is found in Thailand.
Exostoma tenuicaudata is a species of sisorid catfish in the family Sisoridae. It is found in the Siang River, in the Brahmaputra River basin in Arunachal Pradesh, India.
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