Original description as Brachyrhaphis hartwegi:
- Rosen, Donn E & R.M. Bailey. 1963. "The poeciliid fishes (Cyprinodontiformes), their structure, zoogeography, and systematics". Bulletin of the American Museum of Natural History. 126(1): 1-176 (ffm04566)
Conservation: Brachyrhaphis hartwegi is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (LC) least concern (2018).