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. v. 126(n. 1), pp. 1-176 (ffm04566)
Conservation: Brachyrhaphis hartwegi is not evaluated by the international union for the conservation of nature in the iucn red list of threatened species.