Poecilia vivipara

Southern molly
Male (top) and female (bottom)
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cyprinodontiformes
Family: Poeciliidae
Genus: Poecilia
Species:
P. vivipara
Binomial name
Poecilia vivipara
Synonyms
  • Poecilia surinamensis (Valenciennes, 1821)
  • Poecilia unimaculata (Valenciennes, 1821)

Poecilia vivipara, sometimes called the southern molly, is a small euryhaline livebearer fish distributed along the Atlantic coast of South America. It is most frequently found in standing brackish water. It has been introduced outside its native range to control mosquito populations and is occasionally kept in home aquariums.