| Quadrigyrus | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Acanthocephala |
| Class: | Eoacanthocephala |
| Order: | Gyracanthocephala |
| Family: | Quadrigyridae |
| Subfamily: | Quadrigyrinae |
| Genus: | Quadrigyrus Van Cleave, 1920 |
| Type species | |
| Quadrigyrus torquatus Van Cleave, 1920
| |
Quadrigyrus is a genus in Acanthocephala (thorny-headed worms, also known as spiny-headed worms).