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Scientific NameMystus bimaculatus    (Volz, 1904)
Common NameTwo Spot Catfish
Type LocalitySengi Si Russu and Kwantang River, near Djapura (Indragari), Sumatra, Indonesia.
Synonym(s)Macrones bimaculatus
Pronunciationmiss tuss
EtymologyThe 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. Named after the genus, Bagrus, which refers to the Arabic name of a fish.
Hop to next section Species Information
Size67mm or 2.6" SL. Find near, nearer or same sized spp.
IdentificationFishes 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.

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.
Hop to next section Habitat Information
DistributionPrimarily Asia but a handful of species in Africa.
Pacific, Greater Sunda Island Rivers, Sumatra Waters (click on these areas to find other species found there)

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IUCN Red List Category
Near Threatened
, a distribution map is available on the IUCN species page. Last assessed 2019.
pH4.0 - 5.5
Temperature23.0-32.0°C or 73.4-89.6°F (Show species within this range)
Other ParametersTo reflect the natural habitat, the tank should imitate a blackwater environment with soft, warm, and acidic water. That said, these very adaptable catfish will thrive even in medium hard water with a near neutral pH.
Hop to next section Husbandry Information
FeedingEasily adapts to a wide variety of frozen and prepared food in the aquarium. May eat very small fish. User data.
Breeding ReportsThere is no breeding report.
Hop to next section Further Information
ReferenceRevue Suisse de Zoologie v. 12 (no. 2), pp 466.
Registered KeepersThere is but a single registered keeper, view all "my fish" data.
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There are 5 records of this fish being seen, view them all.
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Look up on Encyclopedia of LifeLook up M. bimaculatus on Encyclopedia of Life
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Last UpdateThu Nov 03, 2022 9:26 pm (Species record created: Thu Jan 01, 1970 1:00 am)