Fabricia dubia – synonym of Fabricia stellaris
Fabricia dubia Wesenberg-Lund, 1941 – synonym of Fabricia stellaris
Fabricia sabella – synonym of Fabricia stellaris
Fabricia sabella Ehrenberg – synonym of Fabricia stellaris
Fabricia stellaris stellaris – synonym of Fabricia stellaris
Fabricia stellaris stellaris Fitzhugh, 1990 – synonym of Fabricia stellaris
Fabriciola baltica Friedrich, 1940 – synonym of Fabriciola baltica
Fabriciola bochmanni – synonym of Fabricia stellaris
Fabriciola bochmanni Friedrich, 1940 – synonym of Fabricia stellaris
Ficopomatus enigmaticus Ten Hove & Werdenburg, 1978 – synonym of Ficopomatus enigmaticus
Filibranchus roseus – synonym of Trichobranchus roseus
Filibranchus roseus Malm, 1874 – synonym of Trichobranchus roseus
Filograna dysteri – synonym of Salmacina dysteri
Filograna dysteri – synonym of Salmacina dysteri
Filograna implexa Berkeley in Sars, 1851 – synonym of Filograna implexa
Fimbriosthenelais minor – synonym of Sthenelais boa
Fimbriosthenelais minor Pettibone, 1971 – synonym of Sthenelais boa
Fimbriosthenelais zetlandica – synonym of Sthenelais zetlandica
Fimbriosthenelais zetlandica Pettibone, 1971 – synonym of Sthenelais zetlandica
Flabelligera affinis M. Sars, 1829 – synonym of Flabelligera affinis
Flabelligera diplochaitos var. affinis – synonym of Flabelligera affinis
Flabelligera diplochaitos var. affinis Haase, 1915 – synonym of Flabelligera affinis