| Ompok | |
|---|---|
 | |
| Ompok bimaculatus | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Siluridae |
| Genus: | Ompok Lacépède, 1803 |
| Type species | |
| Ompok siluroides Lacépède, 1803 | |
| Synonyms | |
CallichrousHamilton, 1822 Contents | |
Ompok is a genus of fish in the family Siluridae found in lakes and large rivers throughout South and Southeast Asia. [1]
The genus is recognized to be paraphyletic. The species of Ompok have been grouped into species groups, such as the Ompok bimaculatus group (i.e. O. bimaculatus, O. malabaricus and O. miostoma), the O. eugeneiatus group (i.e. O. eugeneiatus and O. pinnatus), the O. hypophthalmus group (i.e. O. hypophthalmus, O. rhabdinurus and O. urbaini) and the O. leiacanthus group (O. fumidus, O. jaynei and O. leiacanthus). [2] [3] [4] On the other hand, the monophyly of these species groups is not strong enough to reassign species to other genera. [5]
The O. eugeneiatus group is likely to be more closely related to Kryptopterus than the other Ompok species. [2] According to Ferraris O. eugeneiatus has been reclassified into Kryptopterus, however O. pinnatus has not. [6]
There are currently 28 recognized species in this genus:
Kryptopterus bicirrhis, often called the glass catfish, is an Asian glass catfish species of the genus Kryptopterus. Until 1989, the concept of K. bicirrhis included its smaller relative Kryptopterus vitreolus. Its scientific name K. bicirrhis and common name glass catfish are often still used in the aquarium fish trade to refer to the actual K. vitreolus; as it seems, the larger and more aggressive true K. bicirrhis was only ever exported in insignificant numbers.
Clarias is a genus of catfishes of the family Clariidae, the airbreathing catfishes. The name is derived from the Greek chlaros, which means lively, in reference to the ability of the fish to live for a long time out of water.
Wallago is a genus of catfishes order Siluriformes of the family Siluridae, or sheatfish. They are found in rivers throughout southern and southeastern Asia. The only extant species of this genus is Wallago attu.
Siluridae is the nominate family of catfishes in the order Siluriformes. About 105 living species of silurids are placed in 12 or 14 genera.
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.
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.
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.
Kryptopterus cryptopterus is a species of catfish, the type species of the genus Kryptopterus. It can be distinguished from all its congeners, with the exception of the newly split Kryptopterus geminus, by the almost flat dorsal profile with no concavity behind the head. This species grows to a length of 14.6 centimetres (5.7 in) SL.
Kryptopterus geminus is a species of catfish belonging to the family Siluridae. It can be distinguished from all its congeners, with the exception of Kryptopterus cryptopterus, by the almost flat dorsal profile with no concavity behind the head. This species grows to a length of 17.1 centimetres (6.7 in) SL.
Hemibagrus is a genus of catfishes of the family Bagridae.
Mystus is a genus of fish in the family Bagridae native to Asia. Phylogenetic relationships within this genus are poorly understood, though it has been suggested that there are two major lineages.
Pseudomystus is a genus of catfishes of the family Bagridae.
Amblyceps is a genus of fish in the family Amblycipitidae. The genera Amblyceps and Liobagrus are sister group pair that is, in turn, sister to Xiurenbagrus. These species are easily distinguished by the presence of pinnate processes along with the median caudal-fin rays, a prominent cup-like skin flap above the base of the pectoral spine, and the adipose fin largely separate from the caudal fin. In most species the caudal fin is deeply forked; A. apangi and A. murraystuarti differ in having their caudal fin truncate. Amblyceps species may reach about 100 millimetres (3.94 in) SL.
Kryptopterus minor is a small species of Asian glass catfish from the Kapuas River basin in Borneo, Indonesia. Until 2013, the ghost catfish was included in K. minor. The true K. minor is rarely seen in the aquarium trade, while K. vitreolus is common.
Kryptopterus vitreolus, known in the aquarium trade traditionally as the glass catfish and also as the ghost catfish or phantom catfish, is a small species of Asian glass catfish. It is commonly seen in the freshwater aquarium trade, but its taxonomy is confusing and was only fully resolved in 2013. It is endemic to Thailand, and found in rivers south of the Isthmus of Kra that drain into the Gulf of Thailand and river basins in the Cardamom Mountains. There are also unconfirmed reports from Penang in Malaysia.
Ompok bimaculatus, known as butter catfish, is a species of sheatfishes native to Asian countries such as Bangladesh, India, Pakistan, and Sri Lanka, but recently identified in Myanmar. It also indetified in Mekong Basin of Vietnam
Kryptopterus piperatus is a species of Asian glass catfish from rivers in northern Sumatra, Indonesia. It was first described in 2004. True K. piperatus is rarely seen in the aquarium trade, while K. vitreolus is common.
Ompok argestes, is a species of sheatfishes endemic to Sri Lanka.
Pterocryptis taytayensis is a species of catfish found in Palawan, Philippines.