Sturgeon caviar is treated and cleaned roe, i.e. eggs from sturgeon fish. The types of caviar on offer are each named after the type of sturgeon from which it comes. Four types of caviar are of economic importance: Beluga caviar (Huso Huso) Osietra caviar (Acipenser gueldenstaedtii) Siberian caviar (A. baerii) Sevruga caviar (A. stellatus) Regardless of the sturgeon species, there is also the exclusive Shah caviar, which comes from rare albino sturgeons.