Identification keys available for Order Rajiformes
| Key | Title |
| 49 | Key to the rays and skates (Rajidae) of Europe. |
| 112 | Key to the species of guitarfishes (Rhinobatidae) occuring in the Western Central Pacific. |
| 115 | Key to the species of hardnose skates (Rajidae) occuring in the Western Central Pacific. |
| 116 | Key to the species of legskates (Anacanthobatidae) occuring in the Western Central Pacific. |
| 699 | Key to species of Platyrhina from China. |
| 700 | Key to subgenera and species of skates (Rajidae) from China. |
| 701 | Key to species of Anacanthobatis from China. |
| 802 | Key to the species of Rajidae from Argentina and Uruguay. |
| 887 | Key to species of skates (Rajidae) occurring in the Western Central Atlantic. |