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Jump to next section Cat-eLog Data Sheet
Scientific NameTrichomycterus alternatus  (Eigenmann, 1917)
Common Name
Type LocalityRio Doce, Brazil.
Synonym(s)Pygidium alternatum, Pygidium travassosi, Trichomycterus alternatum, Trichomycterus travassosi
EtymologyTrichomycterus: From the Greek trichos, meaning hair and mykter, meaning nose; in reference to the barbels. 
Jump to next section Species Information
Size 81mm or 3.2" SL. Find near, nearer or same sized spp.
SexingIn well fed individuals, one can see the egg mass through the belly of the female.
Jump to next section Habitat Information
DistributionSouth America: coastal river basins in Rio de Janeiro and Espírito Santo, Brazil.
Rio de Janeiro State Rivers (click on these areas to find other species found there)
Espirito Santo State Rivers (click on these areas to find other species found there)
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pH6.5 - 7.5
Temperature21.0-27.0°C or 69.8-80.6°F (Show species within this range)
Other ParametersPrefer cooler water, dissolved oxygen saturation is better to the higher level. A good current is also preferred.
Jump to next section Husbandry Information
FeedingLive or frozen food is well accepted, as is commerical dry prepared foods. Be careful not to overfeed.
FurnitureWill do best in a sandy bottom with some cobble / pebble substrates. Plants are not necessary but can provide some hiding places as would driftwood.
CompatibilityKeep with similarly sized fish (so the catfish won't be eaten) but is active enough to compete with them for food.
BreedingUnreported.
Jump to next section Further Information
ReferencesProc. Am. Philos. Soc. v. 56 700
Registered Keepers(1) Yann.

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Breeding ReportsNone.
Articles
Article - CotM 2011 February
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Last Update2010 Oct 15 03:25 (species record created: 2006 Dec 26 07:48)