Identification keys available for Family Polynemidae
| Key | Title |
| 750 | Key to the species of threadfins (Polynemidae) occurring in the Western Central Pacific. |
| 854 | Key to genus and species of family Polynemidae from the South China Sea. |
| 1039 | Key to the species of threadfins (Polynemidae) occurring in the Western Central Atlantic. |
| 1470 | Illustrated key to genera of Polynemids |
| 1471 | Key to species of Eleutheronema of the world. |
| 1472 | Key to species of Filimanus of the world. |
| 1473 | Key to Indo-Pacifc species of Polydactylus. |
| 1474 | Key to Eastern Pacifc species of Polydactylus. |
| 1475 | Key to the Atlantic species of Polydactylus. |
| 1476 | Key to species of Polynemus of the world. |
| 1499 | Key to genera and species of Polynemidae of West Africa. |