Cucumariidae Ludwig, 1894
Leptopentacta bacilliformis (Koehler & Vaney, 1908)
Leptopentacta cabindaensis (Cherbonnier, 1949)
Leptopentacta cucumis (Risso, 1826)
Leptopentacta deichmannae Domantay, 1958
Leptopentacta dyakonovi Baranova & Savel'eva, 1972
Leptopentacta elongata (Düben & Koren, 1846)
Leptopentacta grisea Clark, 1938
Leptopentacta imbricata (Semper, 1867)
Leptopentacta macculochae Domantay, 1961
Leptopentacta nina Deichmann, 1941
Leptopentacta nova Deichmann, 1941
Leptopentacta panamica Deichmann, 1941
Leptopentacta punctabipeda Cherbonnier, 1960
Leptopentacta punctabipedia Cherbonnier, 1961
Leptopentacta pygmaea (Semper, 1868)
Leptopentacta ransoni (Cherbonnier, 1949)
Leptopentacta tergestina (M. Sars, 1857)