Species (63)
- Urceolus cyclostomus Stein ()
- Cyclostomus abeillei
- Cyclostomus cariniferus
- Cyclostomus castus
- Cyclostomus castaneus
- Cyclostomus chromius
- Cyclostomus chloroticus
- Cyclostomus citrinus
- Cyclostomus costulatus
- Cyclostomus crosseanus
- Cyclostomus cuvierianus
- Cyclostomus deliciosus
- Cyclostomus defloratus
- Cyclostomus deburghiae
- Cyclostomus eugeniae
- Cyclostomus deshayesianus
- Cyclostomus fimbriatus
- Cyclostomus formosus
- Cyclostomus isabella
- Cyclostomus griseus
- Cyclostomus kieneri
- Cyclostomus ligatulus
- Cyclostomus mauritianus
- Cyclostomus madagascariensis
- Cyclostomus macareae
- Cyclostomus michaudi
- Cyclostomus microchasma
- Cyclostomus modestus
- Cyclostomus moulinsii
- Cyclostomus multifasciatus
- Cyclostomus principalis
- Cyclostomus obsoletus
- Cyclostomus pulchellus
- Cyclostomus occlusus
- Cyclostomus pulcher
- Cyclostomus reflexus
- Cyclostomus pyrostomus
- Cyclostomus reticulatus
- Cyclostomus sarcodes
- Cyclostomus scaber
- Cyclostomus sinuatus
- Cyclostomus tricarinatus
- Cyclostomus sulcatus
- Cyclostomus tubularis
- Cyclostomus undulatus
- Cyclostomus virgo
- Cyclostomus unicarinatus
- Cyclostomus virgatus
- Cyclostomus vittatus
- Cyclostomus xanthochilus
- Cyclostomus aplustre
- Cyclostomus barclayanus
- Cyclostomus asper
- Cyclostomus bicarinatus
- Cyclostomus belairi
- Cyclostomus boivini
- Cyclostomus campanulatus
- Cyclostomus elegans
- Cyclostomus dupontianus
- Cyclostomus euchilus
- Cyclostomus expansilabris
- Cyclostomus fulvescens
- Cyclostomus zonatus