Original description as Platypoecilus xiphidium:
ZooBank:DD2DD597-B31E-49B5-A512-461A8A2EDBA5.
- Hubbs, Carl Leavitt & Myron Gordon. 1934. "Chromosome numbers in Xiphophorin fishes". American Naturalist. 68(718):446-455 (ffm01019)
Conservation: Xiphophorus xiphidium is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (LC) least concern (2018).