| Helicophagus | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Pangasiidae |
| Genus: | Helicophagus Bleeker, 1858 |
| Type species | |
| Helicophagus typus Bleeker, 1858 | |
Helicophagus is a genus of shark catfishes native to Southeast Asia.
There are currently three recognized species in this genus: [1]
H. leptorhynchus is known from the Chao Phraya and Mekong River drainages in Indochina. [2] H. typus inhabits rivers of Sumatra and southeast Borneo. [3] H. waandersii is known from medium- to large-sized rivers of Sumatra and Peninsular Malaysia. [2]
H. leptorhynchus grows to about 47.2 centimetres (18.6 in) SL. [4] H. typus reaches a length of about 37.7 cm (14.8 in) TL. [3] H. waandersii has a maximum recorded length of about 70.0 cm (27.6 in) TL. [5]
The stomachs of the specimens of H. waandersii are more or less filled with mollusks, usually bivalves. [5] H. waandersii enters flooded forests. [5] H. waandersii migrates upstream when water levels begin to rise at the beginning of the flood season and moves downstream as water clears at the end of the flood season. [5]
Unlike H. waandersii, H. leptorhynchus stays in permanent river channels and does not move into flooded forests. However, it also migrates upstream and downstream with changes in the water level. [2] H. leptorhynchus feeds primarily on bivalves. [2]
Pseudoplatystoma is a genus of several South American catfish species of family Pimelodidae. The species are known by a number of different common names. They typically inhabit major rivers where they prefer the main channels and tend to stay at maximum depth, but some species can also be seen in lakes, flooded forests, and other freshwater habitats. They have robust bodies, and are important food fish. Recently, their population size has been on the drastic decline due to a variety of factors including overfishing and habitat destruction due to the construction of hydroelectric dams.
Akysis is the largest genus of catfishes of the family Akysidae.
Kryptopterus is a genus of catfishes belonging to the family Siluridae. They are found in freshwater throughout Southeast Asia. The scientific name comes from Ancient Greek kryptós + ptéryx. It refers to the reduced or even entirely absent dorsal fin of these catfishes.
Balantiocheilos is a small genus of cyprinid fish from southeast Asia. It includes two species.
Chaca is the only genus in the catfish family Chacidae. These fish are commonly known as squarehead catfishes, frogmouth catfishes, or angler catfishes. These unusual fish have a sedentary lifestyle and spend much of their time motionless.
Hemibagrus wyckioides, the Asian redtail catfish, is a species of catfish of the family Bagridae.video
Batasio is a genus of catfish of the family Bagridae. These small fish are found in fast-flowing hillstreams throughout South and mainland Southeast Asia.
Pinirampus pirinampu is a species of catfish of the family Pimelodidae. P. pirinampu is also known as the flatwhiskered catfish.
Bagrichthys is a genus of bagrid catfishes.
Hemibagrus is a genus of catfishes of the family Bagridae.
Hyalobagrus is a genus of bagrid catfishes found in Southeast 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.
Parakysis is a genus of catfishes of the family Akysidae. It includes six species.
Pseudobagarius is a genus of catfishes of the family Akysidae.
Silurichthys is a genus of sheatfishes native to Asia.
Belodontichthys is a genus of sheatfishes native to Asia.
Ketengus typus, the bigmouth sea-catfish, is the only species in the sea catfish genus Ketengus.
Bagarius bagarius, also known as the devil catfish, dwarf goonch or goonch, is a species of catfish in the genus Bagarius. It is generally reported as being found in large and medium rivers in South Asia, and is likely synonymous with B. yarrelli.
Bagarius yarrelli, also known as the giant devil catfish or goonch, is a very large species of catfish in the genus Bagarius found in rivers in the Indian subcontinent. It is likely synonymous with B. bagarius.
Osteochilus is a genus of cyprinid fishes mainly found in Southeast Asia with a few extending into adjacent parts of China. Additionally, two species are endemic to the Western Ghats in India.
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