| Common name | McCosker's hagfish |
| Language | English |
| Type | Vernacular |
| Official trade name | No |
| Rank | 2 - (Preferred common name (unique)) |
| Country | Galapagos Islands |
| Locality | |
| Ref. | Mincarone, M.M., D. Plachetzki, C.L. McCord, T.M. Winegard, B. Fernholm, C.J. Gonzalez and D.S. Fudge, 2021 |
| Life stage | juveniles and adults |
| Sex | females and males |
| Core | |
| 1st modifier | |
| 2nd modifier | |
| Remarks |