| Common name | Geelbeek |
| Language | English |
| Type | AFS |
| Official trade name | No |
| Rank | 1 - (Legal common name (unique)) |
| Country | United States (contiguous states) |
| Locality | |
| Ref. | Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991 |
| Life stage | juveniles and adults |
| Sex | females and males |
| Core | color pattern(s) |
| 1st modifier | |
| 2nd modifier | |
| Remarks | 'geelbeek', from Afrikaans'geelbek'; 'geel', i.e., yellow and 'bek', i.e., mouth may refer to the colouration of the mouth of the fish. (Nico E. Willemse, Coll. No. 375, personal communication). |