| Common name | Regnløje |
| Language | Danish |
| Type | Vernacular |
| Official trade name | No |
| Rank | 2 - (Preferred common name (unique)) |
| Country | Denmark |
| Locality | |
| Ref. | Frier, J.-O., 1994 |
| Life stage | juveniles and adults |
| Sex | females and males |
| Core | |
| 1st modifier | |
| 2nd modifier | |
| Remarks | Its occurence in small ponds can be very periodic and the Danish legend says that the fish "rained down from the sky". Confirmed by Ref. 51471. Also Ref. 9946. |