| Common name | Dalak |
| Language | Maranao/Samal/Tao Sug |
| Type | Vernacular |
| Official trade name | No |
| Rank | 2 - (Preferred common name (unique)) |
| Country | Philippines |
| Locality | |
| Ref. | Herre, A.W.C.T. and A.F. Umali, 1948 |
| Life stage | juveniles and adults |
| Sex | females and males |
| Core | |
| 1st modifier | |
| 2nd modifier | |
| Remarks | Applies to Ophieleotris aporos. |