Original description as Characodon lateralis:
- Günther, Albert C. L. G. 1866. "Catalogue of the Physostomi, containing the families Salmonidae, Percopsidae, Galaxidae, Mormyridae, Gymnarchidae, Esocidae, Umbridae, Scombresocidae, Cyprinodontidae, in the collection of the British Museum". Catalogue of the fishes in the British Museum. v. 6, pp. 1-368 (ffm04521)
- Characodon audax Smith & Miller, 1986, with type locality at Pond at El Ojo de Agua de Las Mujeres, near the village of El Toboso (24°16'35''N, 104°34'5''W), Durango, Mexico. Determiner: et al., 2008
Conservation: Characodon lateralis is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (CR) critically endangered (2018). Of the more than fifteen known localities where Characodon lateralis has been known to inhabit during the last fifty years, they just remain nowadays in six, and they may disappear very soon from localities where they localities where they remain, all highly vulnerable.