| Common name | I'en |
| Language | Laotian |
| Type | Vernacular |
| Official trade name | No |
| Rank | 3 - (Other common name) |
| Country | Lao |
| Locality | |
| Ref. | Davidson, A., 1975 |
| Life stage | juveniles and adults |
| Sex | females and males |
| Core | |
| 1st modifier | |
| 2nd modifier | |
| Remarks | Usually transcribed as Yen, but sound is very close to Ian. |