Amblydoras nauticus, the marbled talking catfish or marbled raphael catfish, is a species of thorny catfish endemic to Peru where it is found in the upper Amazon basin. This species grows to a length of 7.5 centimetres (3.0 in) SL.

It is often found in the aquarium trade where commonly mislabelled as "'Amblydoras hancockii" (a synonym of another species, Platydoras hancockii).

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