Descrizione originale come Poecilia chica:
ZooBank:29626B95-2DD9-4829-A504-D0DDC209F267.
- Miller, Robert Rush. 1975. "Five new species of Mexican poeciliid fishes of the genera Poecilia, Gambusia, and Poeciliopsis". Occasional Papers of the Museum of Zoology, University of Michigan. (674):1-44 (ffm04575)
Conservazione: Poecilia chica è valutata dalle organizzazioni internazionali di salvaguardia delle specie a rischio come (DD) Mancanza di dati (2018). The species is potentially threatened by destruction, modification, or reduction of its habitat as a result of perturbations caused by factors such as sedimentation, chemical pollution, de-watering, and anthropogenic modifications to natural channels or flow regimes (Maiz-Tome, 2019).