Idiosepius paradoxus (Ortmann, 1888)
| Japanische Cephalopoden A Ortmann (1888) Zoologische Jahrbuecher (Systematik) 3: 639-670 | |
| Revision des sépiolides L Joubin (1902) Mémoires de la Société Zoologique de France 15: 80-145 | |
| A catalogue of Japanese Cephalopoda S S Berry (1912) Proceedings of the Academy of Natural Sciences of Philadelphia 64: 380-444 | |
| Arnold Edward Ortmann, a bibliography of his work on mollusks, with a catalogue of his Recent molluscan taxa R I Johnson (1977) Occasional Papers on Mollusks 4: 229-244 |