Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Cyprinodontiformes
(Rivulines, killifishes and live bearers) > Poeciliidae
(Poeciliids) > Poeciliinae
Etymology: Xiphophorus: Greek, xiphos = sword + Greek, pherein = to carry (Ref. 45335).
Environment / Climate / Range
Freshwater; benthopelagic; pH range: 7.0 - 8.0; dH range: 9 - 19; non-migratory. Subtropical; 15°C - 25°C (Ref. 1672); 25°N - 20°N
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.0 cm TL male/unsexed; (Ref. 5723); common length : 3.9 cm TL male/unsexed; (Ref. 12193)
North America: endemic to Mexico from southern Tamaulipas to northern Veracruz. At least one country reports adverse ecological impact after introduction.
Occurs in warm springs, weedy canals and ditches (Ref. 5723). Feeds on worms, crustaceans, insects and plant matter (Ref. 7020). Used for genetic research (Ref. 4537). Aquarium keeping: minimum aquarium size 60 cm (Ref. 51539).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
After 24 days gestation, up to 100 young are born.
Rodriguez, C.M., 1997. Phylogenetic analysis of the tribe Poeciliini (Cyprinodontiformes: Poeciliidae). Copeia 1997(4):663-679. (Ref. 26855)
IUCN Red List Status (Ref. 96402)
CITES (Ref. 94142)
Threat to humans
Potential pest (Ref. 13686)
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 2.8 ±0.27 se; Based on food items.
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (tm<1; multiple spawning per year; Fec=100).
Vulnerability (Ref. 59153
): Low vulnerability (22 of 100) .