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  • Mystus wolffii
Jump to next section Cat-eLog Data Sheet
Scientific Name Mystus wolffii  (Bleeker, 1851)
Common Name
Type Locality Bandjarmasin, Kalimantan, Borneo, Indonesia.
Synonym(s) Bagrus wolffii, Hypselobagrus wolffii, Macrones wolffii, Mystus armiger
Pronunciation miss tuss
Etymology The generic name is probably derived from the Latin mystax, meaning moustache, in reference to the long barbels. It was first used by Scopoli in 1777 making it a very old genus that has included many catfishes from throughout the world at one time or another. 
Jump to next section Species Information
Size 200mm or 7.9" SL. Find near, nearer or same sized spp.
Identification Fishes of the genus Mystus Scopoli are small to medium-sized bagrid catfishes occurring in South Asia. Roberts (1994) recognized Mystus to have an elongate cranial fontanel reaching up to the base of the occipital process, long maxillary barbel, very long adipose fin, 11–30 gill rakers on the first gill arch and 37–46 total vertebrae, about equally divided between abdominal and caudal regions. He included only eight species under the genus. Mo (1991) characterized the genus to have a thin needle-like first infraorbital, twisted and thickened metapterygoid loosely attached to the quadrate by means of ligament or a small extent of cartilage. Jayaram & Sanyal (2003) and Ferraris (2007) respectively listed 44 and 33 species of Mystus as valid.

Distinguished from congeners by their uniform color without any dark markings, approximately equal lengths of adipose and anal fin bases, and long maxillary barbels that reach at least to the base of the caudal fin. Nasal barbels longer than head.
Sexing Males have an elongate genital papilla in front of the anal fin.
General Remarks See also, The Status Of The Catfish Mystus wolffii Bleeker, 1851 (Actinopterygii: Siluriformes: Bagridae) In Singapore, With Notes On Its Taxonomy, Heok Hee Ng.
Jump to next section Habitat Information
Distribution Asia: Thailand to Indonesia. Known from the Mekong basin.
Thailand Waters (click on these areas to find other species found there)
Indonesian Waters (click on these areas to find other species found there)
Pacific, Malaysia Waters (click on these areas to find other species found there)
Mekong (click on these areas to find other species found there)

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IUCN Red List Status Least Concern
pH 7.0 - 7.8
Other Parameters Found in brackish to fresh water regions.
Jump to next section Husbandry Information
Feeding Feeds mainly on insects and crustaceans
Breeding Unreported.
Breeding Reports There is no breeding report.
Jump to next section Further Information
Reference Natuurkundig Tijdschrift voor Nederlandsch Indië v. 2 (no. 2), pp 205.
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Last Update 2019 Oct 07 10:43 (species record created: 2005 Apr 27 00:00)