| Clarias insolitus | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Clariidae |
| Genus: | Clarias |
| Species: | C. insolitus |
| Binomial name | |
| Clarias insolitus H. H. Ng, 2003 | |
  Holotype & Paratypes (Feb. 1991) Clarias insolitus (Borneo) | |
Clarias insolitus is a catfish within the genus Clarias , found in the upper drainage of the Barito River, in Kalimantan, Indonesian Borneo. [2]
It lives in mostly small streams in the Barito Ulu region, literally "upstream Barito". Specific habitat details have not been mentioned . [2]
Collected as recent as 1991, the holotype length was 122.5 mm (or 4.8 inches) in SL, with 7 paratypes collected from the same area ranging from 53.5 to 139.7 mm (2.1-5.5 inches), though it hasn't been inferred about the specimen's matuirty status. The diagnosis has been defined by: [2]
It is further distinguishable from other clariids from the following characteristics (except for C. intermedius , C. meladerma , C. olivaceus , and C. planiceps ):
Further characteristics include:
Coloration has been noted to be violet-gray (or plum) in lateral and dorsal areas, with dorsal, anal and pectoral fins with the same coloring, sometimes ranging to translucent near margins. Pelvic fins are translucent. Barbels are violet-gray dorsally, yet paler ventrally (about light gray).
Airbreathing catfish comprise the family Clariidae of the order Siluriformes. Sixteen genera and about 117 species of clariid fishes are described; all are freshwater species. Other groups of catfish also breathe air, such as the Callichthyidae and Loricariidae.
The walking catfish is a species of freshwater airbreathing catfish native to Southeast Asia. It is named for its ability to "walk" and wiggle across dry land, to find food or suitable environments. While it does not truly walk as most bipeds or quadrupeds do, it can use its pectoral fins to keep it upright as it makes a wiggling motion with snakelike movements to traverse land. This fish normally lives in slow-moving and often stagnant waters in ponds, swamps, streams, and rivers, as well as in flooded rice paddies, or temporary pools that may dry up. When this happens, its "walking" skill allows the fish to move to other aquatic environments. Considerable taxonomic confusion surrounds this species and it has frequently been confused with other close relatives. One main distinction between the walking catfish and the native North American ictalurid catfish with which it sometimes is confused, is that the walking catfish lacks an adipose fin.
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.
The stream catfishes comprise the family Akysidae of catfishes.
Erethistidae are a family of catfishes that originate from southern Asia. It includes about 45 species.
Clarias nieuhofii, the slender walking catfish, is a species of clariid catfish. It has a wide distribution in Southeast Asia including southern Vietnam, Cambodia, Thailand, Malay Peninsula, parts of the Greater Sunda Islands, and the Philippines.
Clarias nigricans is a species of clariid catfish. It is only known from the Mahakam River in eastern Borneo. The eel-like catfish of this region were long assumed to belong to the widespread species Clarias nieuhofii but examination of 6 specimens purchased from a fish market in Samarinda in 1999 and preserved specimens from the same location revealed consistent and distinctive differences indicating a separate species.
Clarias batu is a species of clariid catfish. It is only known from Tioman Island off the eastern coast of Peninsular Malaysia. The eel-like catfish found on this island were originally identified as the widespread species Clarias nieuhofii but comparison of a large series of specimens from Tioman with a series of C. nieuhofii from the mainland revealed consistent and distinctive differences indicating a separate species.
Parakysis is a genus of catfishes of the family Akysidae. It includes six species.
Breitensteinia is a genus of catfishes of the family Akysidae. It includes three species.
Acrochordonichthys is a genus of catfishes of the family Akysidae. It includes ten species.
Dolichallabes microphthalmus is the only species of airbreathing catfish in the genus Dolichallabes.
Clarias kapuasensis is a species of clariid catfish from Borneo. It has been described from the upper part of the River Kapuas
Clarias peudoleiacanthus is a species of clariid catfish from Borneo. It has been described from the southern lower parts of the River Kapuas (Western Kalimantan and coastal areas near the Barito River in southern Kalimantan, Indonesia
Clarias intermedius is a species of clariid catfish from Indonesian Borneo. It has been described from Central Kalimantan, Indonesia, between the Sampit and Barito rivers.
Clarias pseudonieuhofii is a species of clariid catfish from Borneo. It has been currently described from the upper basin of the Kapuas River in West Kalimantan, in a geographic area bordering Sentarum Lake. It has been differed from C. nieuhofii by comparing the holotypes and paratypes from specimens of C. nieuhofii from Sumatra.
Clarias anfractus is a species of clariid catfish from Borneo. It is known from the Segama and Kalabakan drainages in Sabah, Northeastern Borneo.
Clarias planiceps is a species of clariid catfish from Borneo. It is known from tributaries all over Sarawak, and possibly up to Kapuas Hulu Regency.
Clarias microspilus is a species of clariid catfish from Sumatra. It is known from short coastal rivers that drain the western face of the Leuser Mountain Range, in Aceh Province
Clarias monsembulai is a species of clariid catfish from the Congo Basin. It was named in honor of Raoul Monsembula Iyaba, a biology professor at the University of Kinshasa for collecting the type sample specimens and his contribution towards central African ichthyology. It has been described from a few rivers, namely Luilaka and Salonga, all near Salonga National Park.
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