Opinions from J. Perner 1903
- 'Antispira belongs to Gastropoda'
- 'Antispira praecox belongs to Antispira'
- 'Archinacella capuloidea belongs to Archinacella'
- 'Archinacella elevata belongs to Archinacella'
- 'Archinacella mitra belongs to Archinacella'
- 'Archinacella modesta belongs to Archinacella'
- 'Archinacella ovata belongs to Archinacella'
- 'Archinacella ovata complanata belongs to Archinacella ovata'
- 'Archinacella ovata elevata belongs to Archinacella ovata'
- 'Archinacella ovata tarda belongs to Archinacella ovata'
- 'Archinacella proxima belongs to Archinacella'
- 'Archinacella rostrata belongs to Archinacella'
- 'Archinacella subglobosa belongs to Archinacella'
- 'Archinacella sublaevis belongs to Archinacella'
- 'Auriptygma consepultum belongs to Auriptygma'
- 'Auriptygma fortior belongs to Auriptygma'
- 'Bellerophon (Bucania) draboviensis belongs to Bellerophon (Bucania)'
- 'Bellerophon (Coelocyclus) belongs to Bellerophon'
- 'Bellerophon (Coelocyclus) novaeki belongs to Bellerophon (Coelocyclus)'
- 'Bellerophon (Coelocyclus) novaki belongs to Bellerophon (Coelocyclus)'
- 'Bellerophon (Coelocyclus) rarissimus belongs to Bellerophon (Coelocyclus)'
- 'Bellerophon (Cymbularia) sculptus belongs to Bellerophon (Cymbularia)'
- 'Bellerophon (Cyrtolites) orphanus belongs to Bellerophon (Cyrtolites)'
- 'Bellerophon (Megalomphala) deficiens belongs to Bellerophon (Megalomphala)'
- 'Bellerophon (Oxydiscus) incola belongs to Bellerophon (Oxydiscus)'
- 'Bellerophon (Prosoptychus) belongs to Bellerophon'
- 'Bellerophon (Prosoptychus) plebeius belongs to Bellerophon (Prosoptychus)'
- 'Bellerophon (Prosoptychus) projectus belongs to Bellerophon (Prosoptychus)'
- 'Bellerophon (Sinuites) strangulatus belongs to Bellerophon (Sinuites)'
- 'Bellerophon (Sphaerocyclus) belongs to Bellerophon'
- 'Bellerophon (Sphaerocyclus) bohemicus belongs to Bellerophon (Sphaerocyclus)'
- 'Bellerophon (Sphaerocyclus) fritschi belongs to Bellerophon (Sphaerocyclus)'
- 'Bellerophon (Sphaerocyclus) nuciformis belongs to Bellerophon (Sphaerocyclus)'
- 'Bellerophon (Sphaerocyclus) scissus belongs to Bellerophon (Sphaerocyclus)'
- 'Bellerophon (Sphaerocyclus) whidbornei belongs to Bellerophon (Sphaerocyclus)'
- 'Bellerophon insignis is recombined as Tremanotus insignis'
- 'Brochidium (Temnospira) belongs to Brochidium'
- 'Brochidium (Temnospira) monile belongs to Brochidium (Temnospira)'
- 'Brochidium (Temnospira) percinctum belongs to Brochidium (Temnospira)'
- 'Brochidium fractum belongs to Brochidium'
- 'Brochidium tuba belongs to Brochidium'
- 'Bucania comata belongs to Bucania'
- 'Bucania delicatula belongs to Bucania'
- 'Bucaniella bohemica belongs to Bucaniella'
- 'Bucanopsis calypso belongs to Bucanopsis'
- 'Bucanospira contexta belongs to Bucanospira'
- 'Calloconus was reranked as Palaeoscurria (Calloconus) and belongs to Palaeoscurria'
- 'Calloconus avus belongs to Calloconus'
- 'Calloconus pompeckji belongs to Calloconus'
- 'Callonema amabile belongs to Callonema'
- 'Callonema surgens belongs to Callonema'
- 'Calyptraea simplex belongs to Calyptraea'
- 'Carinaria bohemica belongs to Carinaria'
- 'Carinariopsis bohemica belongs to Carinariopsis'
- 'Carinariopsis catenularia belongs to Carinariopsis'
- 'Carinariopsis roemeri belongs to Carinariopsis'
- 'Carinariopsis roemericans belongs to Carinariopsis'
- 'Carinariopsis sardesoni belongs to Carinariopsis'
- 'Carinariopsis tschernyschevi belongs to Carinariopsis'
- 'Carinaropsis is corrected as Carinariopsis and belongs to Bellerophontidae'
- 'Cirrus filifora belongs to Cirrus'
- 'Clathrospira infirma belongs to Clathrospira'
- 'Clisospira excavata belongs to Clisospira'
- 'Clisospira minuta belongs to Clisospira'
- 'Clisospira potens belongs to Clisospira'
- 'Clisospira schucherti belongs to Clisospira'
- 'Conradella inopinata belongs to Conradella'
- 'Cosmina complacens belongs to Cosmina'
- 'Craspedostoma (Ploconema) belongs to Craspedostoma'
- 'Craspedostoma (Ploconema) bohemicum belongs to Craspedostoma (Ploconema)'
- 'Craspedostoma (Ploconema) protendens belongs to Craspedostoma (Ploconema)'
- 'Craspedostoma (Sellinema) belongs to Craspedostoma'
- 'Craspedostoma (Sellinema) dives belongs to Craspedostoma (Sellinema)'
- 'Craspedostoma (Sellinema) frater belongs to Craspedostoma (Sellinema)'
- 'Craspedostoma tuba belongs to Craspedostoma'
- 'Cyclonema (Cyclonemina) ananas belongs to Cyclonema (Cyclonemina)'
- 'Cyclonema (Cyclonemina) cancellatum selecta belongs to Cyclonema (Cyclonemina) cancellatum'
- 'Cyclonema (Cyclonemina) cives belongs to Cyclonema (Cyclonemina)'
- 'Cyclonema (Cyclonemina) contexta belongs to Cyclonema (Cyclonemina)'
- 'Cyclonema (Cyclonemina) formosum belongs to Cyclonema (Cyclonemina)'
- 'Cyclonema (Cyclonemina) karlsteinensis belongs to Cyclonema (Cyclonemina)'
- 'Cyclonema (Cyclonemina) timidum belongs to Cyclonema (Cyclonemina)'
- 'Cyclonema ampullosum belongs to Cyclonema'
- 'Cyclonema composita belongs to Cyclonema'
- 'Cyclonema consepultum belongs to Cyclonema'
- 'Cyclonema convergens belongs to Cyclonema'
- 'Cyclonema delicatulum is recombined as Cyclonema (Cyclonemina) delicatulum'
- 'Cyclonema derelictum belongs to Cyclonema'
- 'Cyclonema laudabile belongs to Cyclonema'
- 'Cyclonema pervertens belongs to Cyclonema'
- 'Cyclonema sulphuriferum belongs to Cyclonema'
- 'Cyclonema trepidans belongs to Cyclonema'
- 'Cyclonema vrazensis belongs to Cyclonema'
- 'Cyclotropis belongs to Gastropoda' according to Tapp Canefri 1883
- 'Cyclotropis detersa belongs to Cyclotropis'
- 'Cyclotropis docens belongs to Cyclotropis'
- 'Cyclotropis elliptica belongs to Cyclotropis'
- 'Cyclotropis indocilis belongs to Cyclotropis'
- 'Cyclotropis placida belongs to Cyclotropis'
- 'Cyclotropis querenda belongs to Cyclotropis'
- 'Cyclotropis severa belongs to Cyclotropis'
- 'Cyclotropis vellerosa belongs to Cyclotropis'
- 'Cyclotropis verna belongs to Cyclotropis'
- 'Cymbularia was reranked as Bellerophon (Cymbularia) and belongs to Bellerophon'
- 'Cymbularia bacchus belongs to Cymbularia'
- 'Cymbularia rotunda belongs to Cymbularia'
- 'Cymbularia tarda belongs to Cymbularia'
- 'Cymbularia verrucosa belongs to Cymbularia'
- 'Cyrtolites was reranked as Bellerophon (Cyrtolites) and belongs to Bellerophon'
- 'Cyrtolites advena belongs to Cyrtolites'
- 'Cyrtolites cristatus belongs to Cyrtolites'
- 'Cyrtolites decorus belongs to Cyrtolites'
- 'Cyrtolites eremita belongs to Cyrtolites'
- 'Cyrtolites evolvens belongs to Cyrtolites'
- 'Cyrtolites eximius belongs to Cyrtolites'
- 'Cyrtolites fallax belongs to Cyrtolites'
- 'Cyrtolites fasciculatus belongs to Cyrtolites'
- 'Cyrtolites inprobus belongs to Cyrtolites'
- 'Cyrtolites kokeni belongs to Cyrtolites'
- 'Cyrtolites occultus belongs to Cyrtolites'
- 'Cyrtolites planicosta belongs to Cyrtolites'
- 'Cyrtolites rugosus belongs to Cyrtolites'
- 'Cyrtolites seminulum belongs to Cyrtolites'
- 'Cyrtolites tuboides belongs to Cyrtolites'
- 'Cyrtolites undulatus belongs to Cyrtolites'
- 'Cyrtospira funata belongs to Cyrtospira'
- 'Cyrtospira inexpectata belongs to Cyrtospira'
- 'Donaldia altera belongs to Donaldia'
- 'Dyeria carens belongs to Dyeria'
- 'Euchelus selectus belongs to Euchelus'
- 'Eunema fraternum belongs to Eunema'
- 'Eunema lyelli belongs to Eunema'
- 'Euomphalopterus aliger belongs to Euomphalopterus'
- 'Euomphalopterus recticosta belongs to Euomphalopterus'
- 'Euomphalus devexus is recombined as Pachystrophia devexa'
- 'Euomphalus tenera belongs to Euomphalus'
- 'Fusispira longior belongs to Fusispira'
- 'Gonionema fristschi belongs to Gonionema'
- 'Goniophora zephyrina is recombined as Carinaria zephyrina'
- 'Helcionopsis eminens belongs to Helcionopsis'
- 'Helcionopsis ovulum belongs to Helcionopsis'
- 'Helcionopsis pinnaeformis belongs to Helcionopsis'
- 'Helcionopsis praepostera belongs to Helcionopsis'
- 'Helicotoma oriens belongs to Helicotoma'
- 'Holopea incola belongs to Holopea'
- 'Holopea interupta belongs to Holopea'
- 'Holopea irregularis belongs to Holopea'
- 'Holopea lepidula belongs to Holopea'
- 'Holopea mima belongs to Holopea'
- 'Holopea servus belongs to Holopea'
- 'Holopea timida belongs to Holopea'
- 'Holopea tumescens belongs to Holopea'
- 'Holopella (Macrochilina) hospitalis belongs to Holopella (Macrochilina)'
- 'Holopella altera belongs to Holopella'
- 'Holopella communis belongs to Holopella'
- 'Holopella concors belongs to Holopella'
- 'Holopella contraria belongs to Holopella'
- 'Holopella debilis belongs to Holopella'
- 'Holopella deleta belongs to Holopella'
- 'Holopella dextra belongs to Holopella'
- 'Holopella expandens belongs to Holopella'
- 'Holopella infida belongs to Holopella'
- 'Holopella jovialis belongs to Holopella'
- 'Holopella modesta belongs to Holopella'
- 'Holopella parvula belongs to Holopella'
- 'Holopella tenera belongs to Holopella'
- 'Holopella vermiculosa belongs to Holopella'
- 'Holopella vermiculosa is recombined as Holopea vermiculosa'
- 'Horiostoma involutum is recombined as Polytropis involuta'
- 'Horiostomella otiosa belongs to Horiostomella'
- 'Hystricoceras spinosum belongs to Hystricoceras'
- 'Isospira lepida belongs to Isospira'
- 'Laeogyra bohemica belongs to Laeogyra'
- 'Lepetopsis subrotunda belongs to Lepetopsis'
- 'Lepetopsis umbo belongs to Lepetopsis'
- 'Lesuerella bohemica belongs to Lesuerella'
- 'Littorina ussheri is recombined as Turbonitella ussheri'
- 'Lophospira dubia belongs to Lophospira'
- 'Loxonema beraunense belongs to Loxonema'
- 'Loxonema derelictum belongs to Loxonema'
- 'Loxonema domina belongs to Loxonema'
- 'Loxonema inexpectatum belongs to Loxonema'
- 'Loxonema parvula belongs to Loxonema'
- 'Loxonema pollens belongs to Loxonema'
- 'Loxonema praecedens belongs to Loxonema'
- 'Loxonema rude belongs to Loxonema'
- 'Lytospira arcuata belongs to Lytospira'
- 'Lytospira subuloidea belongs to Lytospira'
- 'Lytospira tangens belongs to Lytospira'
- 'Maclurea comes belongs to Maclurea'
- 'Macrochilina was reranked as Holopella (Macrochilina) and belongs to Holopella'
- 'Macrochilina bohemica belongs to Macrochilina'
- 'Macrochilina capillosa belongs to Macrochilina'
- 'Macrochilina crassior belongs to Macrochilina'
- 'Macrochilina dispar belongs to Macrochilina'
- 'Macrochilina evoluta belongs to Macrochilina'
- 'Macrochilina intermedia belongs to Macrochilina'
- 'Macrochilina ovata rectistriata belongs to Macrochilina ovata'
- 'Macrochilina rara belongs to Macrochilina'
- 'Macrochilina recticosta belongs to Macrochilina'
- 'Macrochilina whidbornei belongs to Macrochilina'
- 'Meandrella sculpta belongs to Meandrella'
- 'Megalomphala was reranked as Bellerophon (Megalomphala) and belongs to Bellerophon'
- 'Morphotropis aliena belongs to Morphotropis'
- 'Morphotropis capillosa belongs to Morphotropis'
- 'Morphotropis complanans belongs to Morphotropis'
- 'Morphotropis incongruens belongs to Morphotropis'
- 'Morphotropis obsolescens belongs to Morphotropis'
- 'Morphotropis procera belongs to Morphotropis'
- 'Morphotropis tremulans belongs to Morphotropis'
- 'Morphotropis vellerosa belongs to Morphotropis'
- 'Murchisonia (Goniospira) declivis is recombined as Murchisonia declivis'
- 'Murchisonia declivisdiot belongs to Murchisonia'
- 'Murchisonia fugitiva belongs to Murchisonia'
- 'Murchisonia oehlerti belongs to Murchisonia'
- 'Naticonema similaris belongs to Naticonema'
- 'Naticopsis antiquata belongs to Naticopsis'
- 'Naticopsis compar belongs to Naticopsis'
- 'Naticopsis confusa belongs to Naticopsis'
- 'Naticopsis consobrina belongs to Naticopsis'
- 'Naticopsis errans belongs to Naticopsis'
- 'Naticopsis insculpta belongs to Naticopsis'
- 'Naticopsis laeta belongs to Naticopsis'
- 'Naticopsis plebeia belongs to Naticopsis'
- 'Naticopsis plena belongs to Naticopsis'
- 'Naticopsis plicatula belongs to Naticopsis'
- 'Naticopsis velox belongs to Naticopsis'
- 'Nematotrochus concurrens belongs to Nematotrochus'
- 'Ophileta prima belongs to Ophileta'
- 'Orthonychia elegans belongs to Orthonychia'
- 'Orthonychia extenuata belongs to Orthonychia'
- 'Otospira squammata belongs to Otospira'
- 'Oxydiscus was reranked as Bellerophon (Oxydiscus) and belongs to Bellerophon'
- 'Oxydiscus (Cyrtodiscus) belongs to Oxydiscus'
- 'Oxydiscus (Cyrtodiscus) nitidus belongs to Oxydiscus (Cyrtodiscus)'
- 'Oxydiscus (Cyrtodiscus) procer belongs to Oxydiscus (Cyrtodiscus)'
- 'Oxydiscus annularis belongs to Oxydiscus'
- 'Pachystrophia bohemica belongs to Pachystrophia'
- 'Pachystrophia dilatata belongs to Pachystrophia'
- 'Pachystrophia discreta belongs to Pachystrophia'
- 'Pagodea concomitans belongs to Pagodea'
- 'Palaeacmaea discoides belongs to Palaeacmaea'
- 'Palaeacmaea horizontalis belongs to Palaeacmaea'
- 'Palaeacmaea immigrans belongs to Palaeacmaea'
- 'Palaeacmaea incerta belongs to Palaeacmaea'
- 'Palaeacmaea laevigata belongs to Palaeacmaea'
- 'Palaeacmaea latiuscula belongs to Palaeacmaea'
- 'Palaeacmaea ovoidea belongs to Palaeacmaea'
- 'Palaeacmaea porrecta belongs to Palaeacmaea'
- 'Palaeacmaea primula belongs to Palaeacmaea'
- 'Palaeonustus comes belongs to Palaeonustus'
- 'Palaeoscurria (Calloconus) coronata belongs to Palaeoscurria (Calloconus)'
- 'Palaeoscurria (Calloconus) gibbosa belongs to Palaeoscurria (Calloconus)'
- 'Palaeoscurria (Calloconus) humilis belongs to Palaeoscurria (Calloconus)'
- 'Palaeoscurria calyptrata belongs to Palaeoscurria'
- 'Palaeoscurria recurva belongs to Palaeoscurria'
- 'Palaeoscurria transversa belongs to Palaeoscurria'
- 'Paragalerus holzapfeli belongs to Paragalerus'
- 'Patella antiquissima is recombined as Archaeophialia antiquissimia'
- 'Phorus philosophus is recombined as Philoxene philosophus'
- 'Phragmostoma (Salpingostoma) nobile belongs to Phragmostoma (Salpingostoma)'
- 'Phragmostoma civis belongs to Phragmostoma'
- 'Phragmostoma nautiloidea belongs to Phragmostoma'
- 'Phragmostoma tuboides belongs to Phragmostoma'
- 'Phymatifer plicatulus belongs to Phymatifer'
- 'Planitrochus amicus belongs to Planitrochus'
- 'Planitrochus dominus belongs to Planitrochus'
- 'Platyceras (Orthonychia) cornutum is recombined as Orthonychia cornuta'
- 'Platyschisma infima belongs to Platyschisma'
- 'Pleuromphalus seductor belongs to Pleuromphalus'
- 'Pleuronotus confusus belongs to Pleuronotus'
- 'Pleurotomaria (Spiroraphe) belongs to Pleurotomaria'
- 'Pleurotomaria (Spiroraphe) sulcatula belongs to Pleurotomaria (Spiroraphe)'
- 'Pleurotomaria consolans belongs to Pleurotomaria'
- 'Pleurotomaria crassior belongs to Pleurotomaria'
- 'Pleurotomaria cytherea belongs to Pleurotomaria'
- 'Pleurotomaria infausta belongs to Pleurotomaria'
- 'Pleurotomaria obesa belongs to Pleurotomaria'
- 'Pleurotomaria regulosa belongs to Pleurotomaria'
- 'Pleurotomaria sepulta belongs to Pleurotomaria'
- 'Pleurotomaria suburbana belongs to Pleurotomaria'
- 'Pleurotomaria tuboides belongs to Pleurotomaria'
- 'Polytropis approximans belongs to Polytropis'
- 'Polytropis aspirans belongs to Polytropis'
- 'Polytropis assidua belongs to Polytropis'
- 'Polytropis compar belongs to Polytropis'
- 'Polytropis conferta belongs to Polytropis'
- 'Polytropis confertissima belongs to Polytropis'
- 'Polytropis conjugata belongs to Polytropis'
- 'Polytropis costata belongs to Polytropis'
- 'Polytropis delicata belongs to Polytropis'
- 'Polytropis dives belongs to Polytropis'
- 'Polytropis dulcis belongs to Polytropis'
- 'Polytropis ingenua belongs to Polytropis'
- 'Polytropis laudabilis belongs to Polytropis'
- 'Polytropis oblita belongs to Polytropis'
- 'Polytropis ornatula belongs to Polytropis'
- 'Polytropis parens belongs to Polytropis'
- 'Polytropis pectinata belongs to Polytropis'
- 'Polytropis potens belongs to Polytropis'
- 'Polytropis pulchra belongs to Polytropis'
- 'Polytropis recedens belongs to Polytropis'
- 'Polytropis robusta belongs to Polytropis'
- 'Polytropis sequens belongs to Polytropis'
- 'Polytropis subcostata belongs to Polytropis'
- 'Polytropis tegulata belongs to Polytropis'
- 'Polytropis tenera belongs to Polytropis'
- 'Polytropis tremulans belongs to Polytropis'
- 'Polytropis ventricosa belongs to Polytropis'
- 'Polytropis versata belongs to Polytropis'
- 'Porcellia consorbina is recombined as Pleurotomaria consorbina'
- 'Porcellia filiformis belongs to Porcellia'
- 'Porcellia normalis belongs to Porcellia'
- 'Porcellia simulans belongs to Porcellia'
- 'Prosolarium procerum belongs to Prosolarium'
- 'Pseudomurchisonia pulchra belongs to Pseudomurchisonia'
- 'Pseudotectus carinatus belongs to Pseudotectus'
- 'Ptychonema nigrum belongs to Ptychonema'
- 'Ptychopeltis incola belongs to Ptychopeltis'
- 'Ptychosphaera constricta belongs to Ptychosphaera'
- 'Pycnomphalus elatus belongs to Pycnomphalus'
- 'Pycnomphalus emergens belongs to Pycnomphalus'
- 'Pycnomphalus inflatus belongs to Pycnomphalus'
- 'Pycnomphalus nummularius belongs to Pycnomphalus'
- 'Pycnotrochus viator belongs to Pycnotrochus'
- 'Raphispira plena belongs to Raphispira'
- 'Raphistoma inchoans belongs to Raphistoma'
- 'Raphistoma pullus belongs to Raphistoma'
- 'Rhabdospira bifrons belongs to Rhabdospira'
- 'Rhabdospira bohemica belongs to Rhabdospira'
- 'Ribeirella sharpei belongs to Ribeirella'
- 'Ribeiria apusoides belongs to Ribeiria'
- 'Rotellomphalus tardus belongs to Rotellomphalus'
- 'Salpingostoma was reranked as Phragmostoma (Salpingostoma) and belongs to Phragmostoma'
- 'Salpingostoma attavum belongs to Salpingostoma'
- 'Salpingostoma caudatum belongs to Salpingostoma'
- 'Salpingostoma grande belongs to Salpingostoma'
- 'Salpingostoma plicosum belongs to Salpingostoma'
- 'Scenella tardissima belongs to Scenella'
- 'Scoliostoma bohemica belongs to Scoliostoma'
- 'Sinuites was reranked as Bellerophon (Sinuites) and belongs to Bellerophon'
- 'Sinuites bilobatus infaustus belongs to Sinuites bilobatus'
- 'Sinuites reticulatus belongs to Sinuites'
- 'Sinuites sowerbyi belongs to Sinuites'
- 'Sinuites sowerbyi evoluta belongs to Sinuites sowerbyi'
- 'Sinuitopsis neglecta belongs to Sinuitopsis'
- 'Sinuitopsis neglecta transgrediens belongs to Sinuitopsis neglecta'
- 'Sinuitopsis nodosa belongs to Sinuitopsis'
- 'Sinutropis esthetica belongs to Sinutropis'
- 'Sinutropis interrumpens belongs to Sinutropis'
- 'Spirina patula belongs to Spirina'
- 'Spirina tubicina belongs to Spirina'
- 'Straparollus alacer belongs to Straparollus'
- 'Straparollus coluber belongs to Straparollus'
- 'Straparollus fragilis belongs to Straparollus'
- 'Straparollus honoratus belongs to Straparollus'
- 'Straparollus perlongus belongs to Straparollus'
- 'Straparollus perprofondus belongs to Straparollus'
- 'Straparollus praestans belongs to Straparollus'
- 'Straparollus sodalis belongs to Straparollus'
- 'Strophostylus gregarius belongs to Strophostylus'
- 'Strophostylus proeva belongs to Strophostylus'
- 'Temnodiscus bicarinatus belongs to Temnodiscus'
- 'Temnodiscus ferrigena belongs to Temnodiscus'
- 'Temnodiscus incertus belongs to Temnodiscus'
- 'Temnodiscus platynotus belongs to Temnodiscus'
- 'Temnodiscus pusillus belongs to Temnodiscus'
- 'Tortilla disjuncta belongs to Tortilla'
- 'Tremagyrus scaber belongs to Tremagyrus'
- 'Tremanotus beraunensis belongs to Tremanotus'
- 'Tremanotus beraunensis polygyratus belongs to Tremanotus beraunensis'
- 'Tremanotus beraunensis serpentinus belongs to Tremanotus beraunensis'
- 'Tremanotus caelatus belongs to Tremanotus'
- 'Tremanotus distans belongs to Tremanotus'
- 'Tremanotus fortis belongs to Tremanotus'
- 'Tremanotus incipiens belongs to Tremanotus'
- 'Tremanotus planorbis belongs to Tremanotus'
- 'Tremanotus polygonus belongs to Tremanotus'
- 'Trochonema attavum belongs to Trochonema'
- 'Trochonema excavatum belongs to Trochonema'
- 'Trochonema pauperum belongs to Trochonema'
- 'Trochonema peregrinum belongs to Trochonema'
- 'Trochonema tricinctum belongs to Trochonema'
- 'Trochotremaria pollens belongs to Trochotremaria'
- 'Trochus immersus belongs to Trochus'
- 'Trochus imperitus belongs to Trochus'
- 'Trochus normalis belongs to Trochus'
- 'Trochus stuxbergi belongs to Trochus'
- 'Trochus venalis belongs to Trochus'
- 'Tryblidium barrandei belongs to Tryblidium'
- 'Tryblidium glaseri is recombined as Drahomira glaseri' according to Barrande in Perner 1903
- 'Tryblidium glaseri belongs to Tryblidium'
- 'Tryblidium rugatum belongs to Tryblidium'
- 'Tubina hystrix belongs to Tubina'
- 'Tubogyra primula belongs to Tubogyra'
- 'Tubomphalus crenistria belongs to Tubomphalus'
- 'Turbo conformis belongs to Turbo'
- 'Turbo immaturus belongs to Turbo'
- 'Turbo magister belongs to Turbo'
- 'Turbo placidus belongs to Turbo'
- 'Turbo prosper belongs to Turbo'
- 'Turbonitella fraterna belongs to Turbonitella'
- 'Turbonitella humilis belongs to Turbonitella'
- 'Turbonitella ovoides belongs to Turbonitella'
- 'Turbonitella pater belongs to Turbonitella'
- 'Turbonitella primula belongs to Turbonitella'
- 'Turbonitella proligera belongs to Turbonitella'
- 'Turbonitella pusilla belongs to Turbonitella'
- 'Umbospira nigricans belongs to Umbospira'
- 'Umbotrochus aspersus belongs to Umbotrochus'
- 'Umbotropis albicans belongs to Umbotropis'
- 'Vermetus fractus belongs to Vermetus'
- 'Versispira contraria belongs to Versispira'
- 'Worthenia aberrans belongs to Worthenia'
- 'Worthenia cognata belongs to Worthenia'
- 'Worthenia complexa belongs to Worthenia'
- 'Worthenia grata belongs to Worthenia'
- 'Worthenia infidelis belongs to Worthenia'
- 'Worthenia rarissima belongs to Worthenia'
- 'Zygopleura devonicans belongs to Zygopleura'