Cyclocoelum bivesiculatum- Cyclocoelum brasilianum
- Cyclocoelum cuneatum
- Cyclocoelum dumetellae
- Cyclocoelum halcyonis
- Cyclocoelum kossacki
- Cyclocoelum leidyi
- Cyclocoelum macrorchis
- Cyclocoelum microcotyleum
- Cyclocoelum microstomum
- Cyclocoelum mutabile
- Cyclocoelum nittanyense
- Cyclocoelum obliquum
- Cyclocoelum obscurum
- Cyclocoelum oculeum
- Cyclocoelum problematicum
- Cyclocoelum pseudomicrostomum
- Cyclocoelum triangularum
- Cyclocoelum wilsoni