Hemicystodinium zoharyi – synonym of Pyrodinium bahamense bahamense
Hemicystodinium zoharyi – synonym of Pyrodinium bahamense compressum
Heteraulacus ostenfeldii – synonym of Alexandrium ostenfeldii
Hystrichosphaeridium machaerophorum – synonym of Lingulodinium polyedrum
Hystrichosphaeridium zoharyi – synonym of Pyrodinium bahamense bahamense
Hystrichosphaeridium zoharyi – synonym of Pyrodinium bahamense compressum