Original description as Myxostoma austrinum:
- Bean, Tarleton Hoffman. 1880. "Descriptions of two species of fishes collected by Prof. A. Dugès in central Mexico". Proceeding of the United States National Museum. 2(95):302-305 (ffm00236)
Conservation: Moxostoma austrinum is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (DD) data deficient (2018).