Species
Haplacanthus ehrmanensis Gross, 1942
Synonymy list
1975     Haplacanthus ehrmanensis Gross, 1940 — Lyarskaya , pp. 232, fig. 1:5
1998     Haplacanthus ehrmanensis Gross — Valiukevičius , pp. 7
2000     Haplacanthus ehrmanensis Gross — Esin et al. , pp. 345
Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Chordata | 
| Subphylum | Vertebrata | 
| Infraphylum | Gnathostomata | 
| Class | Acanthodii | 
| Genus | Haplacanthus | 
| Species | ehrmanensis | 
| ludziensis | |
| marginalis | |
| perseensis |