| Common name | Siven |
| Language | Bulgarian |
| Type | Vernacular |
| Official trade name | No |
| Rank | 2 - (Preferred common name (unique)) |
| Country | Bulgaria |
| Locality | |
| Ref. | Blanc, M., J.-L. Gaudet, P. Banarescu and J.-C. Hureau, 1971 |
| Life stage | juveniles and adults |
| Sex | females and males |
| Core | |
| 1st modifier | |
| 2nd modifier | |
| Remarks |