Teleostei (teleosts) >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Xiphophorus: Greek, xiphos = sword + Greek, pherein = to carry (Ref. 45335).
Eponymy: General Darius Nash Couch (1822–1897) was a soldier and administrator. [...] (Ref. 128868), visit book page.
More on author: Girard.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic; non-migratory. Tropical; 27°C - 30°C (Ref. 2060)
North America: Río San Juan ecoregion in Mexico.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.0 cm TL male/unsexed; (Ref. 50894); 6.0 cm TL (female)
Used for genetic studies.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Rodriguez, C.M., 1997. Phylogenetic analysis of the tribe Poeciliini (Cyprinodontiformes: Poeciliidae). Copeia 1997(4):663-679. (Ref. 26855)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquarium: commercial
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