FIGURE 1. Simpsonichthys radiosus, UFRJ 6017 in Simpsonichthys radiosus sp. n. (Teleostei: Cyprinodontiformes: Rivulidae): a new annual killifish from the upper Rio Tocantins basin, central Brazil

FIGURE 1. Simpsonichthys radiosus, UFRJ 6017, male, holotype, 23.4 mm SL (10 days after collection); Brazil: Goiás: Formosa: upper Rio Tocantins basin.Published as part of Costa, Wilson J. E. M. & Brasil, Gilberto C., 2004, Simpsonichthys radiosus sp. n. (Teleostei: Cyprinodontiformes: Rivulidae): a new annual killifish from the upper Rio Tocantins basin, central Brazil, pp. 1-7 in Zootaxa 737 on page 3, DOI: 10.5281/zenodo.15862