Cat-eLog Right Arrow Clariidae Right Arrow Heterobranchus

Jump to next section Cat-eLog Data Sheet
Scientific Name Heterobranchus bidorsalis  Geoffroy St. Hilaire, 1809
Common Name
Type Locality Nile River
Synonym(s) Heterobranchus geoffroyi, Heterobranchus intermedius, Heterobranchus senegalensis
Pronunciation Het err o brach us
Etymology Heterobranchus: From the Greek heteros, meaning different and branchos, meaning fin; in reference to the presence of the two dorsal fins (rayed and adipose). 
Jump to next section Species Information
Size 1500mm or 59.1" SL. Find near, nearer or same sized spp.
Identification Head oval-shaped to rectangular dorsally; snout broadly rounded; eyes rather laterally placed. Frontal fontanelle long and narrow; occipital fontanelle relatively long and oval shaped. `Postorbital' bones completely united. Suprabranchial organ well developed. Pectoral spine smooth. Openings of secondary sensory canals with regular geometric pattern. Body and fins occasionally with irregularly placed spots.
Sexing The genital papilla, which is right below the anus, is elongated and pointy in males while it is round and relatively larger (and larger than the anus) in females. In ventral view especially, females are much broader in the body than males of equal age and rearing practices.
General Remarks Fishbase lists 150 cm TL.
Jump to next section Habitat Information
Distribution Africa: Nile. Africa: Chad basin, Niger, Upper Volta, Guinea and Senegal. Also known from the Gambia River
African Waters, Nile (click on these areas to find other species found there)
African Waters, Chad (click on these areas to find other species found there)
African Waters, Nigeria Waters, Niger (click on these areas to find other species found there)
African Waters, Gambia (click on these areas to find other species found there)
African Waters, Sénégal (click on these areas to find other species found there)
African Waters, Volta, Upper Volta (click on these areas to find other species found there)

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IUCN Red List Status Least Concern
Temperature 22.0-28.0°C or 71.6-82.4°F (Show species within this range)
Jump to next section Husbandry Information
Breeding Unreported.
Breeding Reports There is no breeding report.
Jump to next section Further Information
References Poissons du Nilv. 1 (pt 1) - pp - Pls. 16-17
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Last Update 2006 Nov 11 05:54 (species record created: 2004 Dec 03 00:00)