- Sycetta asconoides Breitfuss, 1896 accepted as Grantia asconoides (Breitfuss, 1896)
- Sycetta perforata (Haeckel, 1872)
- Sycon abyssale Borojevic & Graat-Kleeton, 1965
- Sycon ciliatum (Fabricius, 1780)
- Sycon escanabense Duplessis & Reiswig, 2000
- Sycon escanabensis Duplessis & Reiswig, 2000 accepted as Sycon escanabense Duplessis & Reiswig, 2000
- Sycon faulkneri Ilan, Gugel, Galil & Janussen, 2003
- Sycon raphanus Schmidt, 1862