Original description as Heros deppii:
- Heckel, Johann Jakob. 1840. "Johann Natterer's neue Flussfische Brasilien's nach den Beobachtungen und Mittheilungen des Entdeckers beschrieben (Erste Abtheilung, Die Labroiden)". Annalen des Wiener Museums der Naturgeschichte. pp 325-471 (ffm00007)
- Heros montezuma Heckel, 1840, with type locality at Mexico. Determiner: Reis et al., 2003
- Herichthys geddesi Regan, 1905, with type locality at Southern Mexico. Determiner: Paepke et al., 2014
Conservation: Herichthys deppii is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (LC) least concern (2018). Although Herichthys deppii has a high resilience and the habitat remains relatively pristine, fishing by local people, currently regularly using spear guns directed to breeding pairs is intense and the distribution range is rather small, so I believe it is important to monitor the population of H. deppii, which over the years has apparently decreased in number.