sentences:  Although the fish had been discovered in Brazil in 1953 by Harald Sioli, a discus collector, Axelrod claimed that he had made the discovery himself during a steamboat trip on the Rio Negro, and he sent fish that he purchased from a dealer in New Jersey to the Smithsonian Institution, where the species was identified.In 1989, Axelrod donated his collection of fossil fish to the University of Guelph, which the university says is one of the largest donations by an individual to a Canadian university.The Axelrod Institute of Ichthyology at that university was named for him.