Glenodinium bipes Paulsen, 1904 accepted as
Protoperidinium bipes (Paulsen, 1904) Balech, 1974 (additional source)
Peridinium claudicans Paulsen, 1907 accepted as
Protoperidinium claudicans (Paulsen, 1907) Balech, 1974 (basis of record)
Protoperidinium Bergh, 1881 (additional source)
Protoperidinium bipes (Paulsen, 1904) Balech, 1974 (new combination reference)
Protoperidinium cerasus (Paulsen, 1907) Balech, 1973 (additional source)
Protoperidinium claudicans (Paulsen, 1907) Balech, 1974 (new combination reference)
Protoperidinium conicum (Gran) Balech, 1974 (new combination reference)