| Key | Title |
| 43 | Key to the Apristurus ‘longicephalus’-group (Scyliorhinidae/Pentanchidae) |
| 73 | Key to the catsharks/dogfishes (Scyliorhinidae) of Europe. |
| 106 | Key to the species of catsharks (Scyliorhinidae) occuring in the Western Central Pacific. |
| 686 | Key to species of Apristurus occuring in China. |
| 687 | Key to species of Galeus occuring in China. |
| 878 | Key to the species of catsharks (Scyliorhinidae) occurring in the Western Central Atlantic. |
| 1515 | Key to the Indo-West Pacific Parmaturus species. |