最初描述为 Gambusia alvarezi:
- Hubbs, Clark L & Victor G. Springer. 1957. "A revision of the Gambusia nobilis species group, with descriptions of three new species, and notes on their variation, ecology and evolution". Texas Journal of Science. 9(3):279-327 (ffm04561)
保育: Gambusia alvarezi 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 (DD) 数据缺乏（Data deficient） (1996). Gambusia alvarezi has a very limited distribution in and around Ojo de Agua de San Gregorio, which is found in good shape up to our days (May 2023). The small area of the spring is kept isolated by a fence since the water is used for human consumption.