Chaetognatha: Sagittoidea
Order Aphragmophora (Arrow Worms)
| Family | Common Name | Selected Genus and Species | Image |
| Bathybelidae | Arrow Worm | Bathybelos typhlops |  |
| Krohnittidae | Arrow Worm | Krohnitta subtilis |  |
| Pterokrohniidae | Arrow Worm | Pterokrohnia arabica |  |
| Pterosagittidae | Arrow Worm | Pterosagitta draco |  |
| Sagittidae | Arrow Worm | Aidanosagitta neglecta |  |
Order Phragmophora (Arrow Worms)
| Family | Common Name | Selected Genus and Species | Image |
| Eukrohniidae | Arrow Worm | Eukrohnia hamata |  |
| Heterokrohniidae | Bathypelagic Arrow Worm | Heterokrohnia involucrum |  |
| Krohnittellidae | Arrow Worm | Krohnittella boureei |  |
| Spadellidae | Arrow Worm | Spadella cephaloptera |  |
On to Cycliophora
Back to home page