| Key | Title |
| 691 | Key to species of Centroscymnus from China. |
| 692 | Key to species of Etmopterus from China. |
| 693 | Key to species of Isistius from China. |
| 694 | Key to species of Scymnodon from China. |
| 872 | Key to the species of lantern sharks (black dogfishes) [Dalatiidae (=Etmopteridae)] occurring in the Western Central Atlantic. |
| 873 | Key to the species of sleeper sharks [Dalatiidae (=Somniosidae)] occurring in the Western Central Atlantic. |
| 874 | Key to the species of kitefin sharks (Dalatiidae) occurring in the Western Central Atlantic. |