Gradiconus nybakkeni Tenorio, J. K. Tucker & Chaney, 2012 – basionym of Conus nybakkeni (Tenorio, J.K.Tucker & Chaney, 2012)
Gradiconus ostrinus J. K. Tucker & Tenorio, 2011 – basionym of Conus ostrinus (J.K.Tucker & Tenorio, 2011)
Graphiconus indomaris Bozzetti, 2014 – basionym of Conus indomaris (Bozzetti, 2014)