| Kingdom | Animalia |
|---|---|
| Phylum | Chordata |
| Class | Cephalaspidomorphi |
| Order | Petromyzontiformes |
| Family | Petromyzontidae |
| Genus | Petromyzon (1) |
| Size |
Head-body length at spawning: over 45 cm (2) |
![]() | Learn about the scientific name of this species and how it fits into the tree of life at Nature Navigator. |