最初描述为 Mollienesia petenensis:
ZooBank:4496B689-DE1E-4014-8565-477995E3393B.
- Günther, Albert C. L. G. 1866. "Catalogue of the Physostomi, containing the families Salmonidae, Percopsidae, Galaxidae, Mormyridae, Gymnarchidae, Esocidae, Umbridae, Scombresocidae, Cyprinodontidae, in the collection of the British Museum". Catalogue of the fishes in the British Museum. 6:1-368 (ffm04521)
同种异名 (1):
- Mollienesia gracilis Regan, 1913, 标本产地来自于 Lake Petén [Petén Itza], Guatemala. 鉴定者: Rosen et al., 1963
保育: Poecilia petenensis 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) (2020).