69138 Scleronema ibirapuita Ferrer & Malabarba, 2020 Trichomycteridae Pencil or parasitic catfishes Trichomycterinae Siluriformes Teleostei South America: the rio Ibirapuitã basin, a tributary to the left bank of rio Ibicuí (Brazil), and in the río Arapey (Uruguay); lower rio Uruguay basin.