Classification / Names
Common names from other countries
Size / Weight / Age
Max length : 14.0 cm TL male/unsexed; (Ref. 26130); 16.0 cm TL (female); common length : 2.8 cm TL male/unsexed; (Ref. 12193)
Freshwater; brackish; benthopelagic; pH range: 7.0 - 8.0; dH range: 9 - 19; non-migratory
Climate / Range
Tropical; 22°C - 28°C (Ref. 52054), preferred ?; 26°N - 12°N
North and Central America: Rio Nantla, Veracruz in Mexico to northwestern Honduras. Africa: Feral populations reported from Natal and eastern Transvaal as well as in Lake Otjikoto, Namibia (Ref. 7248). Several countries report adverse ecological impact after introduction.
Countries | FAO areas | Ecosystems | Occurrences | Introductions
soft rays: 8 - 10. This species is distinguished by having a medium to large swordtail with a long straight caudal appendage; midlateral stripe may be dusky or brownish (northern populations) or red; 2 additional reddish stripes may be present above midlateral line and one beneath; terminal segment of gonopodial ray 3 produced into a crescent-shaped hook and blade pointed distally; ray 4a curves strongly backward over the blade at an angle greater than 90°; distal serrae of ray 4p reduced in size and number and proximal serrae rather slender; terminal segment of ray 5a produced into a claw, several times larger than the distal serrae of ray 4p (Ref. 52914).
IUCN Red List Status (Ref. 90363)
Threat to humans
Fisheries: of no interest; aquarium: highly commercial
Estimates of some properties based on models
Phylogenetic diversity index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)
3.2 ±0.43 se; Based on food items.
High, minimum population doubling time less than 15 months (tm<1; Fec=20-200 * 12)
Low vulnerability (16 of 100)