| Scientific Name | Author | English Name |
|---|---|---|
| Idiosepius biserialis | Voss, 1962 | |
| Idiosepius kijimuna | Reid, Sato, Jolly & Strugnell, 2023 | Ryukyu pygmy squid |
| Idiosepius macrocheir | Voss, 1962 | |
| Idiosepius minimus | (D'Orbigny, 1835) | |
| Idiosepius notoides | Berry, 1921 | Southern pygmy squid |
| Idiosepius paradoxus | (Ortmann, 1888) | Northern pygmy squid |
| Idiosepius picteti | (Joubin, 1894) | |
| Idiosepius pygmaeus | Steenstrup, 1881 | Two-tone pygmy squid |
| Idiosepius thailandicus | Chotiyaputta, Okutani, & Chaitiamvong, 1991 | |
| Kodama jujutsu | Reid, Sato, Jolly & Strugnell, 2023 | Hannan's pygmy squid |