sladkowskii, Rivulus Vermeulen [F. B. M.] 2023:103, Figs. 1-6 [Killi-Data Series 2023; ref. 40177] Small creek, about 14.6 km southeast of the indigenous village Mitú, Vaupés Department, eastern Colombia, 1°9'57.12"N, 70°8'54.18"W, elevation 190 meters. Holotype: CIUA 0008005. Paratypes: CIUA 0008006 (9), 0008007 (2). Genus tentative. •Valid as Laimosemion sladkowskii (Vermeulen 2023). Current status: Valid as Laimosemion sladkowskii (Vermeulen 2023). Rivulidae: Rivulinae. Distribution: South America: upper Vaupés River drainage, Vaupés Department, eastern Colombia. Habitat: freshwater.