Cat-eLog Right Arrow Heptapteridae Right Arrow Rhamdia

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Scientific NameRhamdia quelen  (Quoy & Gaimard, 1824)
Common NamesSilver Catfish
Bagre (Central & South America), Bagre De Arroyo (Venezuelan), Barbilla (Peruvian), Barbudo (Peruvian), Canyon Catfish, Djaki Catfish, Jandia (Brazilian), Nhandia (Brazilian), Quelen-Antennenwels (Germany)
Type LocalityBetween Caño Pastos and Hamburgo, trib. to Río Samiria, Depto Loreto, Peru.
Synonym(s)Caecorhamdella urichi, Caecorhamdia urichi, Pimelenotus vilsoni, Pimelodus baronismuelleri, Pimelodus cinerascens, Pimelodus cuyabae, Pimelodus deppei, Pimelodus godmanni, Pimelodus hilarii, Pimelodus micropterus, Pimelodus musculus, Pimelodus namdia, Pimelodus parahybae, Pimelodus pentlandii, Pimelodus queleni cuprea, Pimelodus sebae, Pimelodus sellonis, Pimelodus stegelichii, Pimelodus wagneri, Pimelodus wuchereri, Rhamdia barbata, Rhamdia baronismuelleri, Rhamdia bransfordii, Rhamdia cinerascens, Rhamdia depressa, Rhamdia godmani, Rhamdia guatemalensis depressa, Rhamdia heteracantha, Rhamdia hilarii, Rhamdia lehmanni, Rhamdia microps, Rhamdia mounseyi, Rhamdia nasuta, Rhamdia pentlandi, Rhamdia pubescens, Rhamdia riojae, Rhamdia sayaensis, Rhamdia sebae, Rhamdia vilsoni, Rhamdia wagneri, Silurus rivularis
Pronunciationram dee ah - kwee (or KEY) lenn
EtymologyThe name Rhamdia is apparently a misspelling of 'nhamdiâ', an orthographic variant of the Tupi-Guarani name for the fish, 'jandiá'. The species is named after the abbe Quelen, who accompanied Quoy and Gaimard on their travels.
Jump to next section Species Information
Size 375mm or 14.8" SL. Find near, nearer or same sized spp.
IdentificationIt is distinguished from congeners in having the following unique combination of characters: pectoral fin spine with serrae on both sides, caudal fin lobes subequal or with either lobe slightly longer, posterior nostril velum open posterolaterally, gill raker 5-16, post-Weberian vertebrae 36-44, eye medium sized.
SexingThe genital papilla of males tends to be larger and more well developed.
Jump to next section Habitat Information
DistributionWidely distributed throughout Central and South America, from southern Mexico to central Argentina.
Amazon (click on these areas to find other species found there)
Tuy (click on these areas to find other species found there)
Orinoco (click on these areas to find other species found there)
La Plata (click on these areas to find other species found there)
Guyana Waters, Coastal Rivers of Guyanas (click on these areas to find other species found there)
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pH4.0 - 8.0
Temperature18.0-28.0°C or 64.4-82.4°F (Show species within this range)
Other ParametersAble to tolerate a wide range of water conditions.
Jump to next section Husbandry Information
FeedingNot a fussy eater and will take all manner of prepared and live foods. Will eat smaller tankmates.
FurnitureSome driftwood/rocks/pipes as hiding spaces.
CompatibilityShould only be housed with large, robust fish (large central American cichlids are ideal), as smaller tankmates will be eaten. Territorial and aggressive towards conspecifics.
Suggested TankmatesLarge, robust fish (such as central American cichlids).
BreedingNot reported in aquarium, but bred for aquaculture as food fish. Non-adhesive demersal eggs (1.1 to 2.8 mm diameter) are laid down, hatching after about 48 hours at 22°C. Ten days later, the larvae weigh approximately 100 mg but growth is slow (0.5 to 1.15 g per day).
Jump to next section Further Information
ReferencesVoyage Uranie, Zool. - pp228 - Pl. 49 (figs. 3-4)
Registered Keepers(1) Silurus, (2) Marcos Montes, (3) Bas Pels, (4) Redtailrob, (5) CatfishPownage63, (6) Gulper.

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Breeding ReportsNone.
Article - CotM 2005 March
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Last Update2017 Apr 14 00:00 (species record created: 2002 May 23 00:00)