Xiphophorus nigrensis Rosen, 1960
Panuco swordtail
Xiphophorus nigrensis
photo by JJPhoto

Family:  Poeciliidae (Poeciliids), subfamily: Poeciliinae
Max. size:  6 cm TL (male/unsexed); 6 cm (female)
Environment:  benthopelagic; freshwater; pH range: 7.5; dH range: 25
Distribution:  Central America: Rio Choy of the Rio Panuco basin in San Luis Potosi, Mexico.
Diagnosis:   
Biology:  Inhabits fast-flowing river segments with steep banks and overhanging bank vegetation.
IUCN Red List Status: Data deficient (DD); Date assessed: 29 March 2018 Ref. (130435)
Threat to humans:  harmless


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