Genus Tautoga refers to a genus of marine fish that includes a single species, Tautog. The fish is also commonly known as blackfish or tog. While the genus Tautoga includes only one species, there are some synonyms used to refer to this species, including Tautoga onitis, Labrus onitis, and Pogonias onitis. These synonyms are based on earlier taxonomic classifications that have been revised over time. The Tautog is a popular sport fish, and it is also commercially harvested. It is typically found in waters along the Eastern coast of North America, from Nova Scotia to South Carolina.