Opinions from E. Koken 1896
- 'Bellerophon alutaceus belongs to Bellerophon'
- 'Bellerophon bilobatus is recombined as Sinuites bilobatus'
- 'Bellerophon bisulcatus is recombined as Bucaniella bisulcata'
- 'Bellerophon carina is recombined as Bucaniella carina'
- 'Bellerophon conspicuus is recombined as Bucaniella conspicua'
- 'Bellerophon czekanowskii is recombined as Bucania czekanowskii'
- 'Bellerophon decussatus is recombined as Bucania decussata'
- 'Bellerophon latofasciatus belongs to Bellerophon'
- 'Bellerophon tumidus is recombined as Bucaniella tumida'
- 'Brachytomaria nodulosa belongs to Brachytomaria'
- 'Bucania crassa belongs to Bucania'
- 'Bucania gracillima belongs to Bucania'
- 'Bucania oelandica belongs to Bucania'
- 'Bucaniella jugata belongs to Bucaniella'
- 'Bucaniella lineata belongs to Bucaniella'
- 'Buccinites arculatus is recombined as Macrochilina arculata'
- 'Cymbularia galeata belongs to Cymbularia'
- 'Cyrtolites arrosus is recombined as Temnodiscus arrosus'
- 'Cyrtolites euryomphalus is recombined as Temnodiscus euryomphalus'
- 'Cyrtolites lamellifer is recombined as Temnodiscus lamellifer'
- 'Cyrtolites obliquus is recombined as Temnodiscus obliquus'
- 'Cyrtolites pharetra is recombined as Temnodiscus pharetra'
- 'Eccyliopterus tolli belongs to Eccyliopterus'
- 'Euomphalus carinifer belongs to Euomphalus'
- 'Euomphalus dimidiatus belongs to Euomphalus'
- 'Euomphalus gradatus belongs to Euomphalus'
- 'Euomphalus helicoides belongs to Euomphalus'
- 'Euomphalus radiatus is recombined as Discohelix radiata'
- 'Euomphalus striatus is recombined as Porcellia striata'
- 'Euomphalus trigonalis is recombined as Buechelia trigonalis'
- 'Helicites delphinuloides is recombined as Euryzone delphinuloides'
- 'Helicites qualteriata is recombined as Raphistoma qualteriatum'
- 'Holopea ampullacea belongs to Holopea'
- 'Loxonema obliquearcuatum is recombined as Zygopleura obliquearcuatum'
- 'Loxonema reticulata is recombined as Zygopleura reticulatum'
- 'Lytospira potens belongs to Lytospira'
- 'Lytospira tubicina belongs to Lytospira'
- 'Maclurea dilatata belongs to Maclurea'
- 'Maclurea helix is recombined as Lesueurilla helix'
- 'Maclurea infundibulum belongs to Maclurea'
- 'Megalomphala cycloides belongs to Megalomphala'
- 'Monodonta purpurea is recombined as Euchelus purpura'
- 'Murchisonia nieszkowskii is recombined as Ectomaria nieszkowskii'
- 'Nerita subcostata is recombined as Turbonitella subcostata'
- 'Oxydiscus imitator belongs to Oxydiscus'
- 'Paradoxides kjerulfi is recombined as Olenellus kjerulfi'
- 'Phasianella ovata is recombined as Macrochilina ovata'
- 'Phasianella ventricosa is recombined as Macrochilina ventricosa'
- 'Pleurotomaria (Sagana) juvavica belongs to Pleurotomaria (Sagana)'
- 'Pleurotomaria callosa is recombined as Gosseletina callosa'
- 'Pleurotomaria centrifuga is recombined as Euryzone centrifuga'
- 'Pleurotomaria chamaeconus belongs to Pleurotomaria'
- 'Pleurotomaria guestphalica is recombined as Euryzone guestphalica'
- 'Pleurotomaria imbricata is recombined as Euryzone imbricata'
- 'Pleurotomaria inflata belongs to Pleurotomaria'
- 'Pleurotomaria latevittata is recombined as Euryzone latevittata'
- 'Pleurotomaria limbatus is recombined as Pseudophorus limbatus'
- 'Pleurotomaria nigra is recombined as Euryzone nigra'
- 'Pleurotomaria notlingi belongs to Pleurotomaria'
- 'Pleurotomaria numismale belongs to Pleurotomaria'
- 'Pleurotomaria roemeri is recombined as Euryzone roemeri'
- 'Pleurotomaria rotelloidea belongs to Pleurotomaria'
- 'Pleurotomaria semilaevis is recombined as Euryzone semilaevis'
- 'Pleurotomaria thulensis belongs to Pleurotomaria'
- 'Pleurotomaria turbinea is recombined as Euryzone turbinea'
- 'Euryzone undulata is a subjective synonym of Euryzone imbricata'
- 'Pleurotomaria vicinalis is recombined as Euryzone vicinalis'
- 'Polytropis cingulata belongs to Polytropis'
- 'Porcellia aberrans belongs to Porcellia'
- 'Raphistoma acutangulum belongs to Raphistoma'
- 'Raphistoma spirillum belongs to Raphistoma'
- 'Salpingostoma locator belongs to Salpingostoma'
- 'Schizostoma costata is recombined as Porcellia costata'
- 'Sinuites angustus belongs to Sinuites'
- 'Sinuites naviculoides belongs to Sinuites'
- 'Subulites subula belongs to Subulites'
- 'Temnodiscus accola belongs to Temnodiscus'
- 'Temnodiscus tumidus belongs to Temnodiscus'
- 'Trochonema panderi belongs to Trochonema'
- 'Turbinites bicarinatus is recombined as Gonionema bicarinatus'
- 'Turbo armatus is recombined as Eunema armata'
- 'Worthenia aista belongs to Worthenia'
- 'Worthenia borkholmiensis belongs to Worthenia'
- 'Worthenia mickwitzi belongs to Worthenia'