interruptus, Melanorivulus Volcan [M. V.], Severo-Neto [F.] & Lanés [L. E. K.] 2018:264, Figs. 1-2 [Zoosystematics and Evolution v. 94 (no. 2); ref. 35895] First order stream, in the headwaters of Rio Pardo, municipality of Campo Grande, Mato Grosso do Sul state, Brazil, 20°28'11"S, 54°29'25"W, elevation 589 meters. Holotype: MCP 53145. Paratypes: MCP, ZUFMS. •Valid as Melanorivulus interruptus Volcan, Severo-Neto & Lanés 2018 -- (Volcan et al. 2024:1499 [ref. 41484]). Current status: Valid as Melanorivulus interruptus Volcan, Severo-Neto & Lanés 2018. Rivulidae: Rivulinae. Distribution: South America: Rio Pardo drainage, Rio Paraná basin, Mato Grosso do Sul state, Brazil. Habitat: freshwater.