最初描述为 Heros istlanus:
- Jordan, David Starr & J.O. Snyder. 1899. "Notes on a collection of fishes from the rivers of Mexico, with description of twenty new species". Bulletin of the U.S. Fish Commission. 19:115-147 (ffm00041)
- Heros mento Vaillant & Pellegrin, 1902, 标本产地来自于 Río Negro, southern Mexico. 鉴定者: Taylor & Miller, 1980
- Cichlasoma (Parapetenia) leonhard-schultzei Ahl, 1935, 标本产地来自于 Tlapa, Guerrero, Mexico. 鉴定者: Kullander, 2003
- Cichlasoma istlana fusca de Buen, 1946, 标本产地来自于 Río Huámito, La Huacana, Mexico. 鉴定者: Kullander, 2003
保育: Amphilophus istlanus 由国际自然保护联盟（IUCN）在濒危物种红色名录中为自然保育而进行了评估 evaluated (LC) 无危（Least Concern） (2018). A. istlanus faces multiple threats from urban and industrial pollution, habitat degradation, water extraction, hydropower, dam construction, potential overfishing, aquarium trade extraction, and foreign species invasion. However, this species is widespread and occurs within many protected areas of Mexico, and it is not thought that there is a global population decline (Daniels, 2019).
In the Amacuzac River, Balsas drainage, I witnessed A. istlanus sharp population decline in the late 1980s after the introduction of the convict cichlid, Amatitlania nigrofasciata, which quickly colonized the river. Trujillo-Jiménez (1998) found that A. nigrofasciata has a wider but partially overlapping diet with the more specialized A. istlanus, but she rules out that diet alone has displaced the native species.