Characidium alipioiCharacidium alipioi is a fish in the family Crenuchidae. It is native to South America and is found in the Paraíba do Sul River basin in Brazil.SizeThis species reaches a length of.EtymologyThe fish is named in honor of Brazilian herpetologist and ichthyologist Alípio de Miranda-Ribeiro, who founded the fish collection at the Federal University of Rio de Janeiro's National Museum.