Chitonellus gunnii Reeve, 1847 accepted as Cryptoplax striata (Lamarck, 1819) (source of synonymy)
Cryptoconchus (Notoplax) ashbyi Leloup, 1940 accepted as Notoplax addenda Iredale & Hull, 1925 (source of synonymy)
Cryptoplax montanoi Rochebrune, 1882 accepted as Cryptoplax larvaeformis (Burrow, 1815) (source of synonymy)
Cryptoplax striata (Lamarck, 1819) (basis of record)
Cryptoplax striatus (Lamarck, 1819) accepted as Cryptoplax striata (Lamarck, 1819) (basis of record)
Cryptoplax striatus var. westernensis Ashby, 1923 accepted as Cryptoplax striata (Lamarck, 1819) (source of synonymy)
Cryptoplax torresianus Rochebrune, 1882 accepted as Cryptoplax striata (Lamarck, 1819) (source of synonymy)
Cryptoplax unciniferus Rochebrune, 1882 accepted as Cryptoplax larvaeformis (Burrow, 1815) (source of synonymy)
Gymnoplax urvillei Rochebrune, 1881 accepted as Ischnochiton contractus (Reeve, 1847) (source of synonymy)
Notoplax addenda Iredale & Hull, 1925 (basis of record)
Notoplax ashbyi (Leloup, 1940) accepted as Notoplax addenda Iredale & Hull, 1925 (source of synonymy)
Notoplax speciosa addenda Iredale & Hull, 1925 accepted as Notoplax addenda Iredale & Hull, 1925 (basis of record)