English
flagfish
From flag + fish.
The story
The red, white and blue stripes and dots are reminiscent of the American flag.
Today it means
noun A freshwater fish in the family Cyprinodontidae native to Florida, Jordanella floridae, sometimes kept in aquaria and used in laboratory tests of the biological effects of environmental pollutants.
Language periods are conventional ranges, not dates for this word.
Etymograph / flagfish