azurescens, Rivulus Vermeulen [F. B. M.] 2013:47, Figs. 2-3 [Killi-Data Series 2013; ref. 33089] Antioquia, little mountain creek opposite to the entrance of Rancho San Silvestre, 4 km before Doradal, on the left side of the road 60, from Medellin to Puerto Triunfo, Colombia, 05°54'93"N, 7°46'85"W, elevation 353 meters. Holotype (unique): IAVHP 11255. Paratype: RMNH.PISC 36364 (1). Type catalog: DoNascimiento et al. 2016:427 [ref. 34787]. Genus tentative. •Valid as Rivulus azurescens Vermeulen 2013 -- (DoNascimiento et al. 2017:101 [ref. 35633], Gomes 2023:17 [ref. 40174]). •Valid as Cynodonichthys azurescens (Vermeulen 2013). Current status: Valid as Cynodonichthys azurescens (Vermeulen 2013). Rivulidae: Rivulinae. Distribution: South America: Antioquia, Colombia. Habitat: freshwater.