| Common Name | Used in | Language | Type | Official Trade Name |
|---|---|---|---|---|
| Caribbean helmet | USA | English | AFS | No |
| Casco real | Spain | Spanish | FAO | No |
| Casque royal | France | French | FAO | No |
| Helmschnecke | Germany | German | Vernacular | No |
| King conch | USA | English | Vernacular | No |
| King helmet | Cayman Is. | English | Vernacular | No |
| King helmet | UK | English | FAO | No |
| King helmet-shell | USA | English | Vernacular | No |