| More info | Plus d'info | Mais info | FishBase |
| Ref No. | Description | Page |
|---|---|---|
| 031982 | Anonymous,1999 Fish collection database of the Natural History Museum, London (formerly British Museum of Natural History (BMNH)). Natural History Museum, London (formerly British Museum of Natural History (BMNH)). | |
| 097748 | Smith, J.A.,1863 Notice of the ukpam, a large species (probably new) of sting ray (Trygon, Cuv.), found in the Old Calabar River, Africa. Proc. R. Phys. Soc. Edinb. 2:64-69. | 69 |