Gelliodes cavicornis – synonym of Oceanapia robusta
Gelliodes consimilis – synonym of Hemigellius arcoferus
Gelliodes plexa – synonym of Hemigellius arcoferus
Gellius angulatus – synonym of Haliclona angulata
Gellius arcoferus – synonym of Hemigellius arcoferus
Gellius arnesenae – synonym of Hemigellius pumiceus
Gellius capilliferus – synonym of Biemna variantia
Gellius esperi – synonym of Hemigellius arcoferus
Gellius fallax – synonym of Haliclona angulata
Gellius fibulatus – synonym of Haliclona fibulata
Gellius jugosus – synonym of Haliclona fibulata
Gellius jugosus – synonym of Hemigellius arcoferus
Gellius luridus – synonym of Haliclona angulata
Gellius massa – synonym of Hemigellius pumiceus
Gellius pumiceus – synonym of Hemigellius pumiceus
Gellius ravus – synonym of Haliclona rava
Gellius robustus – synonym of Oceanapia robusta
Gellliodes fibulatus – synonym of Haliclona fibulata
Gelllus couchii – synonym of Haliclona fibulata
Geodia mülleri – synonym of Geodia cydonium
Grantia botryoides himantia – synonym of Leucosolenia variabilis
Grantia ciliata – synonym of Sycon ciliatum
Grantia clathrus – synonym of Clathrina clathrus
Grantia ensata – synonym of Aphroceras ensata
Grantia lacunosa – synonym of Guancha lacunosa
Grantia pulverulenta – synonym of Leuconia ananas
Grayella albula – synonym of Crella albula
Grayella pyrula – synonym of Crella pyrula
Grayella schottländeri – synonym of Crella schottlaenderi