A small,brightly colored live-bearing freshwater fish(Poecilia reticulata or Lebistes reticulatus),native to northern South America and adjacent islands of the West Indies and popular in home aquariums.

• 虹鳉一种（虹鳉胎鳉科或虹鳉）色彩艳丽的胎生小鱼，产于南美洲北部和西印度群岛临近岛屿，在家庭的鱼缸中比较常见。