最初命名為 Algoma amara:
- Girard, Charles Frederic. 1856. "Researches upon the cyprinoid fishes inhabiting the fresh waters of the United States, west of the Mississippi Valley, from specimens in the museum of the Smithsonian Institution". Proceedings of the Academy of Natural Sciences of Philadelphia. 8:165-213 (ffm04542)
同種異名 (1):
- Algoma fluviatilis Girard, 1856, 其模式產地在 Near Monterrey, Nuevo León, Mexico. 鑑定者: Gilbert, 1998
保育: Hybognathus amarus 被評鑑為國際自然保育聯盟瀕危物種紅皮書名單中的 (EN) 瀕危 (1996).