| More info | Plus d'info | Mais info | FishBase |
| No. | Valid Name | Author | English Name |
| 1. | Idiotropiscis australis | (Waite & Hale, 1921) | Southern little pipehorse |
| 2. | Idiotropiscis larsonae | (Dawson, 1984) | Helen's pygmy pipehorse |
| 3. | Idiotropiscis lumnitzeri | Kuiter, 2004 | Sydney's pygmy pipehorse |