Gattyana amondseni Hartmann-Schröder, 1971 – synonym of Gattyana amondseni
Gattyana cirrosa McIntosh, 1900 – synonym of Gattyana cirrosa
Gattyana cirrosa var. chaetopteri – synonym of Gattyana cirrosa
Gattyana cirrosa var. chaetopteri Fauvel, 1923 – synonym of Gattyana cirrosa
Genetyllis lutea – synonym of Nereiphylla lutea
Genetyllis lutea Malmgren, 1865 – synonym of Nereiphylla lutea
Glycera alba Fauvel, 1923 – synonym of Glycera alba
Glycera capitata Oersted, 1843 – synonym of Glycera capitata
Glycera gigantea Quatrefages, 1865 – synonym of Glycera gigantea
Glycera lapidum Quatrefages, 1865 – synonym of Glycera lapidum
Glycera mulleri – synonym of Glycera capitata
Glycera mulleri Quatrefages, 1866 – synonym of Glycera capitata
Glycera rouxii Audouin & Milne-Edwards, 1833 – synonym of Glycera rouxii
Glycera setosa – synonym of Glycera capitata
Glycera setosa Oersted, 1843 – synonym of Glycera capitata
Glycera tesselata Grube, 1863 – synonym of Glycera tesselata
Glycera tridactyla Schmarda, 1861 – synonym of Glycera tridactyla
Glycera unicornis Savigny, 1818 – synonym of Glycera unicornis
Glycinde nordmanni Arwidsson, 1898 – synonym of Glycinde nordmanni
Glyphanostomum macroglossum – synonym of Amythasides macroglossus
Glyphanostomum macroglossum Auctt. – synonym of Amythasides macroglossus
Glyphohesione klatti – synonym of Synelmis klatti
Glyphohesione klatti Friedrich, 1950 – synonym of Synelmis klatti
Goniada bobretzkii – synonym of Goniadella bobretzkii
Goniada bobretzkii Annenkova, 1929 – synonym of Goniadella bobretzkii
Goniada eremita – synonym of Goniada pallida
Goniada eremita McIntosh, 1910 – synonym of Goniada pallida
Goniada maculata Oersted, 1843 – synonym of Goniada maculata
Goniada norvegica Oersted, 1844 – synonym of Goniada norvegica
Goniada pallida Arwidsson, 1898 – synonym of Goniada pallida
Goniadella bobretzkii Hartmann-Schröder & Stripp, 1968 – synonym of Goniadella bobretzkii
Greeffia celox – synonym of Alciopa reynaudii
Greeffia celox Apstein, 1900 – synonym of Alciopa reynaudii
Grubea limbata – synonym of Brania limbata
Grubea limbata Claparède, 1868 – synonym of Brania limbata
Grubea pusilla – synonym of Brania pusilla
Grubea pusilla Fauvel, 1923 – synonym of Brania pusilla
Grymaea Bairdi – synonym of Streblosoma bairdi
Grymaea Bairdi Malmgren, 1866 – synonym of Streblosoma bairdi
Gyptis helgolandica – synonym of Podarkeopsis helgolandica
Gyptis helgolandica Hilbig & Dittmer, 1979 – synonym of Podarkeopsis helgolandica
Gyptis mackiei Pleijel, 1993 – synonym of Gyptis mackiei
Gyptis propinqua Marion & Bobretzky, 1875 – synonym of Gyptis propinqua
Gyptis rosea Eliason, 1962 – synonym of Gyptis rosea