Down Cat-eLog Data Sheet
Scientific Name Trachycorystes trachycorystes  (Valenciennes, 1840)
Common Names Iron Head Driftwood Catfish
Black Driftwood Catfish, Black Woodcat
Type Locality Amazon River basin, Brazil.
Synonym(s) Auchenipterus trachycorystes, Trachycorystes typus
Etymology Trachycorystes: From the Greek trachys, meaning rough and korystes, meaning one armed with a helmet; in reference to the rugose cranial shield. 
Down Species Information
Size 350mm or 13.8" SL. Find near, nearer or same sized spp.
Identification This Auchenipterid looks slender. It is the same colour all over (usually black) including the belly. Some report their fish having a brown colour, perhaps this is a different species.

Even more striking is the protruding lower jaw that gives this species identity easily away.
Sexing Males have a genital papilla and do not grow as large as females.

Males are also reported to develop thickened barbels and/or larger dorsal spines.
General Remarks Of the handful of Trachycorystes that are known to science,Trachycorystes trachycorystes is the usual one that is exported albeit on an irregular basis. See also K & B Teats, TFH Dec. 1986 pages 30-37.
Down Habitat Information
Distribution South America: Amazon River basin.
Amazon (click on these areas to find other species found there)
Amazon, Lower Amazon, Nhamundá (click on these areas to find other species found there)

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IUCN Red List Category Not Evaluated
pH 6.4 - 7.0
Temperature 23.0-29.0°C or 73.4-84.2°F (Show species within this range)
Other Parameters Generally undemanding.
Down Husbandry Information
Feeding Everything that fits its (huge) mouth. Preferably live food and plenty of it. Larger frozen foods will also be eaten. No daphnia and such!

Happily eats prepared foods too.
Furniture Large pieces of driftwood as hiding places. Yet these fish also need swimming space for their nocturnal escapades.

Make sure tank covers are secured for this species may jump in the beginning.
Compatibility An aggressive fish that requires a species tank with plenty of refuges, as this species will also attack its own congeners when it feels like it (see Reference; TFH article by K & B Teats).

Don't put smaller fish in the same tank, not even fish that may be able to defend themselves well: in the end, they will be killed.
Suggested Tankmates Only very large fish; certainly avoid slow moving species like (full grown) angelfish and fishes that would compete for refuge with this brute.
Breeding Unreported.
Breeding Reports There is no breeding report.
Down Further Information
Reference Histoire naturelle des poissons v. 15, pp 214, Pl. 437.
Registered Keepers Keeping this species? Why not .
There are 15 registered keepers, view all "my cats" data.
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Spotters Spotted this species somewhere? Click the binoculars!
There are 13 records of this fish being seen, view them all.
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Last Update 2020 Sep 23 13:51 (species record created: 2005 Nov 23 00:00)