degreefi, Rivulus Collier [G. E.] 2016:45, Figs. 5, 6a [Journal of the American Killifish Association v. 49 (no. 2) (for Mar./Apr.); ref. 35018] Small puddles next to Rio Oscura, 3-4 km upstream from where the river empties into Lago de Izabal, Guatemala. Holotype: UMMZ 250297. Paratypes: UMMZ. Genus tentative. •Valid as Cynodonichthys degreefi (Collier 2016). Current status: Valid as Cynodonichthys degreefi (Collier 2016). Rivulidae: Rivulinae. Distribution: Middle America: Rio Polochic valley, Guatemala. Habitat: freshwater.