| Species | Name Used |
|---|---|
| Conasprella tirardi (Röckel & Moolenbeek, 1996) | Conus tirardi (p. ) |
| Conus tenuistriatus Sowerby, 1858 | Conus tenuistriatus (p. ) |
| Conus tessulatus Born, 1778 | Conus tessellatus (p. ) |
| Conus thomae Gmelin, 1791 | Conus thomae (p. ) |
| Conus tulipa Linnaeus, 1758 | Conus tulipa (p. ) |
| Profundiconus teramachii (Kuroda, 1956) | Conus teramachii (p. ) |