Amfractaropa Holcroft, 2018 (original description)
Amfractaropa bretti Holcroft, 2018 (original description)
Biomphalopa recava (Hedley, 1912) (basis of record)
Comularopa Holcroft, 2018 (original description)
Comularopa georginae Holcroft, 2018 (original description)
Nodularopa Holcroft, 2018 (original description)
Nodularopa samanthae Holcroft, 2018 (original description)
Radiolaropa Holcroft, 2018 (original description)
Radiolaropa danieli (J. Stanisic, 2010) (new combination reference)
Radiolaropa eungella Holcroft, 2018 (original description)
Stanisicaropa Holcroft, 2018 (original description)
Stanisicaropa chambersae (J. Stanisic, 2010) (new combination reference)
Whitcochlea Holcroft, 2018 (original description)
Whitcochlea iuloidea (Forbes, 1852) (new combination reference)
Xenoropa Holcroft, 2018 (original description)
Xenoropa wigtonensis Holcroft, 2018 (original description)