| Phyla | Recorded Species in Canada | Unrecorded Species in Canada | Recorded Species in the World | Unrecorded Species in the World |
|---|---|---|---|---|
| Gnathostomulida | None | Unknown | 97 | Unknown |
| Micrognathozoa | None | Unknown | 1 | Unknown |
| Rotifera | 500 | 175 | 2,049 | Unknown |
| Acanthocephala | 25 | 22 | 1,197 | Unknown |