Ключевые слова: actinopterygii, amazon, america, american, animal, animals, aquarium, black doradid, black talking catfish, bolivia, brazil, catfish, colombia, cuiu cuiu, doradidae, ecuador, essequibo, fauna, fish, fresh water, fresh water fish, freshwater, freshwater fish, guyana, lake, mother of snails catfish, natural, nature, oxydoras, oxydoras niger, peru, plated catfish, pseudodoras, pseudodoras niger, razorback catfish, ripsaw catfish, river, sao francisco, siluriformes, south america, south american, swim, swimming, thorny catfish, tropical, underwater, venezuela, water, wild, wild animal, wild life, wildlife, zoo,