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Jump to next sectionCat-eLog > Clariidae > Clarias

  • Clarias macrocephalus(1)  - Click to enlarge
Jump to next section Cat-eLog Data Sheet
Scientific Name Clarias macrocephalus  Günther, 1864     
Common Name(s) Pla Duk
Type Locality Thailand.
Pronunciation klar ee ass
Etymology Clarias: From the Greek chlaros, meaning lively; in reference to the ability of the fish to live for long periods out of water. 
Jump to next section Species Information
Size 1000mm (39.4") SL. Find near, nearer or same sized spp.
Identification Clarias species are characterized by having an elongated body; a soft rayed dorsal fin extending to, or nearly to, the caudal fin base; a soft rayed anal fin extending from just behind the anus to the caudal fin base; pectoral fins each with a serrated anterior bony spine; head depressed, covered largely by firmly sutured, surface sculptured bony plates forming a protective helmet; four pairs of flagellate barbels (nasals, maxillaries, inner and outer mandibulars); air breathing organs derived from the 2nd and 4th epibranchials within a superbranchial chamber.

Distinguished from Southeast Asian congeners by an extremely short and rounded occipital process and by a very high dorsal fin. The combination of these characters are diagnostic for the species. Occipital process wide, broadly curved, with length 3-5 times in its width; distance between dorsal and occipital process 5-7 times in distance from tip of snout to end of occipital process
Jump to next section Habitat Information
Distribution Asia: Thailand to Viet Nam. Introduced to China, Malaysia, Guam and the Philippines.
Thailand Waters (hover or click on these areas to show maps or find other species found there)
Vietnam waters (hover or click on these areas to show maps or find other species found there)
Jump to next section Husbandry Information
Feeding Feeds on aquatic insects, young shrimps and small fishes.
Suggested Tankmates Large cyprinids (silver sharks, tinfoil or spanner barbs for example) or Central American cichlids.
Breeding Unreported. Spawns in small streams
Jump to next section Further Information
References Cat. Fishesv. 5 - pp18
Registered Keepers None. Add this species to your My Cats species list Add this species to your "my cats" page.
Breeding Reports None.
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Last Update 2006 Nov 11 06:16 (species record created: 2006 Nov 11 06:16)

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