Catopygus irregularis Smiser, 1935 † (original description)
Catopygus subcircularis Smiser, 1935 † (original description)
Clitopygus cantrainei Smiser, 1935 † (original description)
Codiopsis doma conicus Smiser, 1935 † (original description)
Codiopsis doma var. conicus Smiser, 1935 † accepted as Codiopsis doma conicus Smiser, 1935 † (original description)
Codiopsis pierrensis Smiser, 1935 † (original description)
Echinocorys belgicus Lambert, 1898 † (redescription)
Echinocorys ovatus (Leske, 1778) † (redescription)
Faujasia transversus Smiser, 1935 † (original description)
Micraster (Isopneustes) eysdenensis Smiser, 1935 † (original description)
Micraster (Isopneustes) montensis Smiser, 1935 † (original description)
Nucleolites tornacensis Smiser, 1935 † (original description)
Oolopygus convexus Smiser, 1935 † (original description)
Oolopygus jandrainensis Smiser, 1935 † (original description)
Phyllobrissus oblongus Smiser, 1935 † (original description)
Procassidulus gliberti Smiser, 1935 † (original description)
Pseudopyrina minuta Smiser, 1935 † (original description)
Pygorhynchus conicus Smiser, 1935 † (original description)
Pygorhynchus ovalis Smiser, 1935 † (original description)
Rhynchopygus macari Smiser, 1935 † (original description)
Spatagoides striatoradiatus conicus Smiser, 1935 † (original description)
Spatagoides striatoradiatus depressus Smiser, 1935 † (original description)
Spatagoides striatoradiatus elevatus Smiser, 1935 † (original description)
Spatagoides striatoradiatus var. conicus Smiser, 1935 † accepted as Spatagoides striatoradiatus conicus Smiser, 1935 † (original description)
Spatagoides striatoradiatus var. depressus Smiser, 1935 † accepted as Spatagoides striatoradiatus depressus Smiser, 1935 † (original description)
Spatagoides striatoradiatus var. elevatus Smiser, 1935 † accepted as Spatagoides striatoradiatus elevatus Smiser, 1935 † (original description)