| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Cylichnium africanum (Locard, 1897) |
Northeast Atlantic | ||
| Cylichnium ancillarioides (Schepman, 1913) |
Western Central Pacific | ||
| Cylichnium nanum Valdes, 2008 |
Western Central Pacific | ||
| Cylichnium spatha (Watson, 1883) |
Western Atlantic | 0.76 |