Clarias nieuhofii

Clarias nieuhofii
	Clarias nieuhofii; from Mentaya Hulu, Central Kalimantan
Conservation status
	; Least Concern (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Siluriformes
Family:	Clariidae
Genus:	Clarias
Species:	C. nieuhofii
Binomial name
	Clarias nieuhofii; Valenciennes, 1840
Synonyms
	Clarias pentapterus Bleeker, 1851; Clarias gilli Smith & Seale, 1906;

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 (Indonesia and Malaysia, including Borneo), and the Philippines.[1]

Named in honor of Johan Nieuhof (1618-1672), Dutch East India Company, who described and illustrated this species in 1682 (but later examination of Nieuhof’s illustration reveals it is a different species).[2]

This species can be distinguished from other Clarias catfishes, apart from the recently discovered Clarias batu and Clarias nigricans, by the greatly elongated body which gives it a remarkably eel-like appearance. The colour is generally grey with two rows of white spots running along the length of the body just below the lateral line and 13 or 14 vertical rows of white spots just above the line. Specimens of up to 50 cm (19.7 inches) standard length have been recorded.

References

Ng, H.H. (2019). "Clarias nieuhofii". IUCN Red List of Threatened Species. 2019: e.T181236A89799198. doi:10.2305/IUCN.UK.2019-2.RLTS.T181236A89799198.en. Retrieved 20 November 2021.
Christopher Scharpf & Kenneth J. Lazara (22 September 2018). "Order SILURIFORMES: Families CLARIIDAE, HETEROPNEUSTIDAE, ANCHARIIDAE and ARIIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 27 February 2021.

Ng, H. H., 2003. Clarias nigricans, a new species of clariid catfish (Teleostei: Siluriformes) from eastern Borneo. The Raffles Bulletin of Zoology 51: 393–398.
Froese, Rainer; Pauly, Daniel (eds.) (2011). "Clarias nieuhofii" in FishBase. December 2011 version.

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[iucn_status_20_November_2021-1] Ng, H.H. (2019). "Clarias nieuhofii". IUCN Red List of Threatened Species. 2019: e.T181236A89799198. doi:10.2305/IUCN.UK.2019-2.RLTS.T181236A89799198.en. Retrieved 20 November 2021.

[ETYFish-2] Christopher Scharpf & Kenneth J. Lazara (22 September 2018). "Order SILURIFORMES: Families CLARIIDAE, HETEROPNEUSTIDAE, ANCHARIIDAE and ARIIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 27 February 2021.