[n = 6]
| Year / Period | From | To | Established | Ecol. effects |
|---|---|---|---|---|
| unknown | USA | Mexico | not established | |
| unknown | USA | Morocco | established | |
| unknown | USA | Panama | unknown | |
| unknown | Unknown | US Virgin Islands | established | |
| 1944 | USA | Mauritius | unknown | |
| 1957 | USA | Puerto Rico | established |