Arcania gracilis Henderson, 1893 (basis of record)
Arcania quinquespinosa Alcock & Anderson, 1894 accepted as Arcania gracilis Henderson, 1893 (source of synonymy)
Matuta lunaris (Forskål, 1775) accepted as Ashtoret lunaris (Forskål, 1775) (source of synonymy)
Polycheles nanus (Smith, 1884) accepted as Stereomastis nana (Smith, 1884) (basis of record)
Polycheles sculptus Smith, 1880 accepted as Stereomastis sculpta (Smith, 1880) (basis of record)
Polycheles validus (A. Milne-Edwards, 1880) accepted as Pentacheles validus A. Milne-Edwards, 1880 (source of synonymy)
Stereomastis grimaldii (Bouvier, 1905) accepted as Stereomastis nana (Smith, 1884) (source of synonymy)