Species
Proturritella gradata (Koken, 1897)
Synonymy list
1897 Gonionema gradatum n. sp. — Koken, E. , pp. 186
1925 Gonionema gradatum Koken — Koken & Perner , pp. 209, fig. 35: 3, 4, 5
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Gastropoda |
| Subclass | Orthogastropoda |
| Order | Murchisoniina |
| Superfamily | Trochonematoidea |
| Family | Lophospiridae |
| Subfamily | Lophospirinae |
| Genus | Proturritella |
| Species | acutum |
| angulosa | |
| bicarinata | |
| cingulata | |
| gradata | |
| reticulata | |
| trimarginata |
See also