Original description as Fundulus persimilis:
- Miller, Robert Rush. 1955. "An annotated list of the American cyprinodontid fishes of the genus Fundulus, with the description of Fundulus persimilis from Yucatan". Occasional Papers of the Museum of Zoology, University of Michigan. (568):1-25 (ffm00206)
Conservation: Fundulus persimilis is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (DD) data deficient (2009).