Genus Balaena, commonly known as the whale genus, includes species like the humpback whale, blue whale, and gray whale. The word "balaena" translates to "whale" in Latin. Other synonyms for Genus Balaena include cetaceans, which encompasses all marine mammals including whales, dolphins and porpoises. Mysticeti is another synonym, which refers specifically to the baleen whales that have a comb-like fringed plate in place of teeth. Moreover, "rorqual" refers to the pleated grooved skin of the whale, which is present in certain species belonging to the Genus Balaena such as the humpback whale and blue whale. In conclusion, Genus Balaena has various synonyms that describe its species, features, and characteristics.