All FishesBagridaeHemibagrus

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Scientific Name Hemibagrus nemurus  (Valenciennes, 1840)
Common Name Asian Redtail Catfish
Type Locality Java, Indonesia.
Synonym(s) Bagrus nemurus, Macrones nemurus, Mystus nemurus
Pronunciation HEM ee BAG russ - nee moo russ
Etymology From the Greek hemi- meaning half and bagrus, the catfish genus. From the Greek nema, meaning thread and oura, meaning tail. In reference to the filaemntous extensions on the dorsalmost principal caudal rays.
Hop to next section Species Information
Size 650mm or 25.6" SL. Find near, nearer or same sized spp.
Identification Members of the genus Hemibagrus are bagrid catfishes that can attain standard lengths of up to 800 mm and are found in large rivers throughout the Indian subcontinent,Southeast and East Asia. Members of this genus have depressed heads,rugose head shields not covered by skin,a slender occipital process and moderately long adipose fins.

Easily distinguished from other bagrids in having a flat head, relatively short adipose fin, and filamentous extensions to the dorsal- and caudal-fin rays.
Distinguished from congeners in lacking any distinctive coloration on the body or fins.
Sexing Males have an elongate gential papilla in front of the anal fin.
Hop to next section Habitat Information
Distribution Asia: Mekong, Chao Phraya and Xe Bangfai basins; also from the Malay Peninsula, Sumatra, Java, Borneo.
Mekong (click on these areas to find other species found there)
Thailand Waters, Chao Praya (click on these areas to find other species found there)
Pacific, Greater Sunda Island Rivers (click on these areas to find other species found there)
Mekong, Xe Bangfai (click on these areas to find other species found there)
Pacific, Malaysia Waters, Peninsular Malaysia Waters (click on these areas to find other species found there)

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IUCN Red List Category Least Concern, range map and more is available on the IUCN species page. Last assessed 2018.
pH 6.0 - 7.6
Temperature 20.0-27.0°C or 68-80.6°F (Show species within this range)
Hop to next section Husbandry Information
Feeding Will eat a wide variety of live, frozen and prepared foods. Meaty foods are particularly relished, as are smaller fishes.
Furniture Provide plenty of rock and driftwood, which should be securely fastened.
Compatibility An aggressive loner. As with other Hemibagrus specis, very intolerant of other fish inhabiting the same tank. What it cannot eat, it will kill out of spite.
Breeding The fish spawn in pools within rivers or within the flooded forest, usually depositing the eggs in a substrate of leaves and twigs. The parents apparently exhibit brood care.
Breeding Reports There is no breeding report.
Hop to next section Further Information
Reference Histoire naturelle des poissons v. 14, pp 423.
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Last Update 2020 Sep 23 03:11 (species record created: 2002 Feb 27 00:00)