Ethmodiscus appendiculatus (Grunow) Ricard, 1970 accepted as Stictodiscus appendiculatus Grunow in Van Heurck, 1883
Ethmodiscus carinatus Pantocsek, 1892 (uncertain > unassessed )
Ethmodiscus convexus Castracane, 1886 (uncertain > unassessed )
Ethmodiscus coronatus Castracane, 1886 (uncertain > unassessed )
Ethmodiscus diadema Castracane, 1886 (uncertain > unassessed )
Ethmodiscus gazellae (C.Janisch ex Grunow) Hustedt, 1928 accepted as Coscinodiscus gazellae C.Janisch ex Grunow, 1879
Ethmodiscus gigas Castracane, 1886 (uncertain > unassessed )
Ethmodiscus hassiacus Krasske, 1934 (uncertain > unassessed )
Ethmodiscus humilis Castracane, 1886 (uncertain > unassessed )
Ethmodiscus japonicus Castracane, 1886 (uncertain > unassessed )
Ethmodiscus japonicus var. subtilis Lemmermann, 1899 (uncertain > unassessed )
Ethmodiscus obovatus Castracane, 1886 (uncertain > unassessed )
Ethmodiscus oruetae F. Azpeitia y Moros, 1911 (uncertain > unassessed )
Ethmodiscus parvulus Karsten, 1905 (uncertain > unassessed )
Ethmodiscus perichantinos Castracane, 1886 (uncertain > unassessed )
Ethmodiscus punctiger Castracane, 1886 (uncertain > unassessed )
Ethmodiscus radiatus Castracane, 1886 (uncertain > unassessed )
Ethmodiscus rex (Wallich in Rattray) Hendey in Wiseman & Hendey, 1953 accepted as Coscinodiscus rex Wallich in Schmidt, 1888
Ethmodiscus russicus Pantocsek, 1892 (uncertain > unassessed )
Ethmodiscus sphaeroidalis Castracane, 1886 (uncertain > unassessed )
Ethmodiscus stellifer Pantocsek, 1892 (uncertain > unassessed )
Ethmodiscus subtilis Karsten, 1905 (uncertain > unassessed )
Ethmodiscus tympanum Castracane, 1886 (uncertain > unassessed )
Ethmodiscus vitrifaces Tempère & Brun in Brun & Tempère, 1889 (uncertain > unassessed )
Ethmodiscus wyvilleanus Castracane, 1886 (uncertain > unassessed )