Opinions from E. Koken and J. Perner 1925
- 'Anomphalus filosus belongs to Anomphalus'
- 'Archaeophialia suecica belongs to Archaeophialia'
- 'Archinacella approximans belongs to Archinacella'
- 'Bellerophon angulatus belongs to Bellerophon'
- 'Bellerophon bullatus belongs to Bellerophon'
- 'Bellerophon compressum is recombined as Salpingostoma compressum'
- 'Bellerophon conspicuus is recombined as Bucaniella conspicua'
- 'Bellerophon contortus is recombined as Megalomphala contorta'
- 'Bellerophon cultrijugata is recombined as Cymbularia cultrijugata'
- 'Bellerophon fastigiatus is recombined as Cymbularia fastigiatus'
- 'Bellerophon globulus is recombined as Cymbularia globulus'
- 'Bellerophon megalostoma is recombined as Salpingostoma megalostoma'
- 'Bellerophon nanus is recombined as Sinuites nanus'
- 'Bellerophon nitens belongs to Bellerophon'
- 'Bellerophon norvegica is recombined as Temnodiscus norvegica'
- 'Bellerophon radiata is recombined as Bucania radiata'
- 'Bembexia incisa belongs to Bembexia'
- 'Brachytomaria costata belongs to Brachytomaria'
- 'Brachytomaria plautini belongs to Brachytomaria'
- 'Brachytomaria turbinata belongs to Brachytomaria'
- 'Bucanella belongs to Bucaniellinae'
- 'Bucania belongs to Bucaniinae'
- 'Bucania cornu belongs to Bucania'
- 'Bucania crassa is recombined as Megalomphala crassa'
- 'Bucania crassiuscula is recombined as Megalomphala crassiuscula'
- 'Bucania gracillima is recombined as Conradella gracillima'
- 'Bucania latissima belongs to Bucania'
- 'Bucania macera belongs to Bucania'
- 'Bucania oelandica belongs to Bucania'
- 'Bucaniella christianiae belongs to Bucaniella'
- 'Bucaniella crispata belongs to Bucaniella'
- 'Bucaniella divergens belongs to Bucaniella'
- 'Bucaniella esthona belongs to Bucaniella'
- 'Bucaniella glabrata belongs to Bucaniella'
- 'Bucaniella homalotropis belongs to Bucaniella'
- 'Bucaniella inflata belongs to Bucaniella'
- 'Bucaniella insularis belongs to Bucaniella'
- 'Bucaniella jugata belongs to Bucaniella'
- 'Bucaniella lamellosa belongs to Bucaniella'
- 'Bucaniella lateralis belongs to Bucaniella'
- 'Bucaniella obtusangula belongs to Bucaniella'
- 'Bucaniella revaliensis belongs to Bucaniella'
- 'Bucaniella rudicostata belongs to Bucaniella'
- 'Bucaniella undata belongs to Bucaniella'
- 'Bucaniellinae belongs to Bellerophontidae'
- 'Bucaniinae belongs to Bellerophontidae'
- 'Cataschisma microsoma belongs to Cataschisma'
- 'Cataschisma winkleri belongs to Cataschisma'
- 'Clathrospira ogygia belongs to Clathrospira'
- 'Clisospira was reranked as Mimospira (Clisospira) and belongs to Mimospira'
- 'Clisospira borkholmiensis belongs to Clisospira'
- 'Clisospira christianieae belongs to Clisospira'
- 'Conradella pinguis belongs to Conradella'
- 'Conradella reticulata belongs to Conradella'
- 'Cyclonema inaequistriatum belongs to Cyclonema'
- 'Cymbularia aequalis belongs to Cymbularia'
- 'Cymbularia angusta belongs to Cymbularia'
- 'Cymbularia compressa belongs to Cymbularia'
- 'Cymbularia galeata belongs to Cymbularia'
- 'Cymbularia lenticularis belongs to Cymbularia'
- 'Cymbularia nummulina belongs to Cymbularia'
- 'Cymbularia pygmaea belongs to Cymbularia'
- 'Cymbularia roemeri belongs to Cymbularia'
- 'Cyrtolites pachygaster belongs to Cyrtolites'
- 'Eccyliopterus brevicollaris belongs to Eccyliopterus'
- 'Eccyliopterus princeps belongs to Eccyliopterus'
- 'Eccyliopterus regularis belongs to Eccyliopterus'
- 'Eccyliopterus tenuissimus belongs to Eccyliopterus'
- 'Eccyliopterus tolli is recombined as Lesueurilla tolli'
- 'Eocryptaenia singularis belongs to Eocryptaenia'
- 'Eotomaria (Stenoloron) kjerulfi belongs to Eotomaria (Stenoloron)'
- 'Eotomaria rupestris belongs to Eotomaria'
- 'Eotomaria solida belongs to Eotomaria'
- 'Eotomaria tumida belongs to Eotomaria'
- 'Euomphalopterus excavatus belongs to Euomphalopterus'
- 'Euomphalopterus gracilis belongs to Euomphalopterus'
- 'Euomphalus (Pleurotomaria) declivis is recombined as Lesueurilla declivis'
- 'Euomphalus carinifer is recombined as Euomphalopterus carinifer'
- 'Euomphalus devexus is recombined as Pachystrophia devexa'
- 'Euomphalus dimidiatus is recombined as Trochomphalus dimidiatus'
- 'Euomphalus dissoluta belongs to Euomphalus'
- 'Euomphalus gradatus is recombined as Palaeomphalus gradata'
- 'Euomphalus laminosus is recombined as Palaeomphalus laminosus'
- 'Euomphalus marginalis is recombined as Lesueurilla marginalis'
- 'Euomphalus patulus belongs to Euomphalus'
- 'Euryzone dalecarlica belongs to Euryzone'
- 'Euryzone kiari belongs to Euryzone'
- 'Euryzone patula belongs to Euryzone'
- 'Globispira nitida belongs to Globispira'
- 'Globispira pillula belongs to Globispira'
- 'Goniatites siluricus is recombined as Bucaniella silurica'
- 'Haplospira variabilis belongs to Haplospira'
- 'Helicites qualteriata is recombined as Raphistoma qualteriatum'
- 'Helicotoma immigrata belongs to Helicotoma'
- 'Helictes obvallatum is recombined as Raphistoma obvallatum'
- 'Holopea aequalis belongs to Holopea'
- 'Holopea ampullacea belongs to Holopea'
- 'Holopea coronata belongs to Holopea'
- 'Holopea inaequistriata belongs to Holopea'
- 'Holopea nitida belongs to Holopea'
- 'Holopea simplex belongs to Holopea'
- 'Isospira nautilina belongs to Isospira'
- 'Kokenospira belongs to Bucaniinae'
- 'Latitaenia kirnaensis belongs to Latitaenia'
- 'Lesueurilla expansa belongs to Lesueurilla'
- 'Loxonema broeggeri belongs to Loxonema'
- 'Loxonema infrasilurica belongs to Loxonema'
- 'Loxonema septentrionale belongs to Loxonema'
- 'Lytospira huenei belongs to Lytospira'
- 'Lytospira norvegica belongs to Lytospira'
- 'Lytospira serpula belongs to Lytospira'
- 'Lytospira valida belongs to Lytospira'
- 'Maclurea dilatata is recombined as Lesueurilla dilatata'
- 'Maclurea helix is recombined as Lesueurilla helix'
- 'Maclurea infundibulum is recombined as Lesueurilla infundibulum'
- 'Maclurea neritoides belongs to Maclurea'
- 'Maclurites septentrionalis belongs to Maclurites'
- 'Maclurites serpentrionalis belongs to Maclurites'
- 'Megalomphala belongs to Bucaniinae'
- 'Megalomphala planorbiformis belongs to Megalomphala'
- 'Mimospira (Clisospira) turrita belongs to Mimospira (Clisospira)'
- 'Murchisonia altesinuata belongs to Murchisonia'
- 'Murchisonia insignis belongs to Murchisonia'
- 'Murchisonia meyendorfi belongs to Murchisonia'
- 'Murchisonia nieszkowskii is recombined as Ectomaria nieszkowskii'
- 'Murchisonia rudis belongs to Murchisonia'
- 'Murchisonia scrobiculata is recombined as Murchisonia (Hormotoma) scrobiculata'
- 'Natiria praecursor belongs to Natiria'
- 'Nautilus decurrens is recombined as Bucaniella decurrens'
- 'Nematotrochus anceps belongs to Nematotrochus'
- 'Nematotrochus bicarinatus belongs to Nematotrochus'
- 'Omphalocirrus christianiae belongs to Omphalocirrus'
- 'Onychochilus belongs to Onychochilidae'
- 'Oxydiscus sphenonotus is recombined as Temnodiscus sphenonotus'
- 'Palaeacmaea compressus belongs to Palaeacmaea'
- 'Palaeoscurria norwegica belongs to Palaeoscurria'
- 'Patella antiquissima is recombined as Archaeophialia antiquissimia'
- 'Phasianella gigas is recombined as Subulites gigas'
- 'Phragmolites belongs to Bucaniinae'
- 'Pilina acuminatum belongs to Pilina'
- 'Pilina ovoideum belongs to Pilina'
- 'Platyceras gracile is recombined as Laeogyra gracilis'
- 'Plectonotus belongs to Bucaniellinae'
- 'Pleurotomaria (Stenoloron) is reassigned into Eotomaria'
- 'Pleurotomaria baltica is recombined as Brachytomaria baltica'
- 'Pleurotomaria chamaeconus is recombined as Pseudocryptaulina chamaeconus'
- 'Pleurotomaria claustrata is recombined as Conotoma claustrata'
- 'Pleurotomaria exquisita is recombined as Globispira exquisita'
- 'Pleurotomaria hyperboraea is recombined as Clathrospira hyperboraea'
- 'Pleurotomaria inflata is recombined as Clathrospira inflata'
- 'Pleurotomaria lahuseni is recombined as Pseudocryptaenia lahuseni'
- 'Pleurotomaria maritima is recombined as Clathrospira maritima'
- 'Pleurotomaria notabilis is recombined as Eotomaria notabilis'
- 'Pleurotomaria notlingi is recombined as Eotomaria notlingi'
- 'Pleurotomaria numismale is recombined as Raphistoma numismale'
- 'Pleurotomaria plicifera is recombined as Brachytomaria plicifera'
- 'Pleurotomaria rossica is recombined as Eotomaria rossica'
- 'Pleurotomaria rotelloidea is recombined as Latitaenia rotelloidea'
- 'Pleurotomaria rudissima is recombined as Spirotomaria rudissima'
- 'Pleurotomaria thulensis is recombined as Euryzone thulensis'
- 'Pollicina conoideus belongs to Pollicina'
- 'Polytropis cyclophora belongs to Polytropis'
- 'Polytropis zonata belongs to Polytropis'
- 'Porcellia (Tremanotus) was reranked as Tremanotus and belongs to Bucaniinae'
- 'Proturritella gracilis belongs to Proturritella'
- 'Pseudocryptaenia glabra belongs to Pseudocryptaenia'
- 'Raphistoma acutangulum belongs to Raphistoma'
- 'Raphistoma aequilaterum belongs to Raphistoma'
- 'Raphistoma alatum belongs to Raphistoma'
- 'Raphistoma applanata belongs to Raphistoma'
- 'Raphistoma bipatellare belongs to Raphistoma'
- 'Raphistoma suturale belongs to Raphistoma'
- 'Raphistoma vaginati belongs to Raphistoma'
- 'Raphistoma wesenbergense belongs to Raphistoma'
- 'Salpingostoma belongs to Salpingostomatinae'
- 'Salpingostoma carrolense belongs to Salpingostoma'
- 'Salpingostoma crassum belongs to Salpingostoma'
- 'Salpingostoma cristatum is corrected as Salpingostoma crispatum and belongs to Salpingostoma'
- 'Salpingostoma cristatum belongs to Salpingostoma'
- 'Salpingostoma depressum belongs to Salpingostoma'
- 'Salpingostoma elevatum belongs to Salpingostoma'
- 'Salpingostoma granulosum belongs to Salpingostoma'
- 'Salpingostoma involutum belongs to Salpingostoma'
- 'Salpingostoma locator belongs to Salpingostoma'
- 'Salpingostoma verrucosum belongs to Salpingostoma'
- 'Salpingostoma zaddachi belongs to Salpingostoma'
- 'Salpingostomatinae belongs to Bellerophontidae'
- 'Sinuites ammonoides belongs to Sinuites'
- 'Sinuites corpulentus belongs to Sinuites'
- 'Sinuites gracilis belongs to Sinuites'
- 'Sinuites niger belongs to Sinuites'
- 'Sinuites quadratus belongs to Sinuites'
- 'Sinuites rugulosus belongs to Sinuites'
- 'Straparollus atavus belongs to Straparollus'
- 'Straparollus norvegicus belongs to Straparollus'
- 'Straparollus paullulus belongs to Straparollus'
- 'Subulites (Cyrtospira) aequalis belongs to Subulites (Cyrtospira)'
- 'Subulites (Cyrtospira) granum belongs to Subulites (Cyrtospira)'
- 'Subulites (Cyrtospira) huenei belongs to Subulites (Cyrtospira)'
- 'Subulites (Cyrtospira) inflata belongs to Subulites (Cyrtospira)'
- 'Subulites (Cyrtospira) lineatus belongs to Subulites (Cyrtospira)'
- 'Subulites (Cyrtospira) ornatus belongs to Subulites (Cyrtospira)'
- 'Subulites enormis belongs to Subulites'
- 'Subulites granum belongs to Subulites'
- 'Subulites toernquisti belongs to Subulites'
- 'Temnodiscus elegans belongs to Temnodiscus'
- 'Temnodiscus imbricatus belongs to Temnodiscus'
- 'Temnodiscus ingricus belongs to Temnodiscus'
- 'Temnodiscus lindstroemi belongs to Temnodiscus'
- 'Temnodiscus minuta belongs to Temnodiscus'
- 'Temnodiscus nautilinus belongs to Temnodiscus'
- 'Temnodiscus ogygiae belongs to Temnodiscus'
- 'Temnodiscus parvus belongs to Temnodiscus'
- 'Temnodiscus pleurogonus belongs to Temnodiscus'
- 'Temnodiscus rugifera is recombined as Helicotis rugifera'
- 'Temnodiscus tumidus belongs to Temnodiscus'
- 'Temnodiscus viator belongs to Temnodiscus'
- 'Tetranota belongs to Bucaniellinae'
- 'Triblidium esthonum is recombined as Tryblidium (Pilina) esthonum'
- 'Trochonema vittatum belongs to Trochonema'
- 'Tropidodiscus belongs to Bucaniinae'
- 'Tryblidium (Pilina) belongs to Tryblidium'
- 'Tryblidium unguis is recombined as Tryblidium (Pilina) unguis'
- 'Turbinites bicarinatus is recombined as Gonionema bicarinatum'
- 'Turbo balticus belongs to Turbo'
- 'Turbo rupestre is recombined as Eunema rupestre'
- 'Turbo silurica is recombined as Worthenia silurica'
- 'Turbo sulcifera is recombined as Eunema sulcifera'
- 'Umbonellina infrasilurica belongs to Umbonellina'
- 'Worthenia aista belongs to Worthenia'
- 'Worthenia aista prisca belongs to Worthenia aista'
- 'Worthenia alata belongs to Worthenia'
- 'Worthenia alternans belongs to Worthenia'
- 'Worthenia borkholmiensis belongs to Worthenia'
- 'Worthenia curvistriata belongs to Worthenia'
- 'Worthenia esthona belongs to Worthenia'
- 'Worthenia jaekeli belongs to Worthenia'
- 'Worthenia mickwitzi belongs to Worthenia'
- 'Worthenia perfecta belongs to Worthenia'
- 'Worthenia sodalis belongs to Worthenia'
- 'Worthenia soluta belongs to Worthenia'
- 'Worthenia subalata belongs to Worthenia'
- 'Worthenia tolli belongs to Worthenia'
- 'Worthenia turbinoides belongs to Worthenia'