Carassius vulgaris is a scientific name that refers to a type of freshwater fish commonly known as the crucian carp. However, there are other synonyms that can be used to describe this species, including Carassius auratus gibelio, which is a goldfish variety of the same species, Prussian carp, and silver crucian carp. In various languages, the species is also known by different names, such as "Karaş" in Turkish and "kueshi" in Albanian. Regardless of the name used, this hardy and adaptable fish species is commonly found in ponds, lakes, and rivers, and is a favorite among hobbyist anglers for its small size and unique features.