Genus Phoxinus refers to a genus of small freshwater fish belonging to the family Cyprinidae. Also known as minnows, these fish are commonly found in cold and clear streams, lakes, and rivers across North America, Europe, and Asia. Some synonymous terms commonly associated with the Genus Phoxinus include subgenus Phoxinus, Phoxinellus, and Romanogobio. These terms are often used interchangeably to refer to species of Cyprinidae that share similar physical and behavioral traits with the Genus Phoxinus. Some popular species synonymous with the Genus Phoxinus include Eurasian minnow, European minnow, and longnose dace.