Opinions from B.L. Pitcher 1939
- 'Bellerophon carinatus is recombined as Bucaniopsis carinatus'
- 'Bellerophon squamosus is corrected as Bellerophon squamosa and belongs to Bellerophon'
- 'Bellerophon wenlockensis is recombined as Prosoptychus wenlockiensis'
- 'Bucanella is corrected as Bucaniella and belongs to Bellerophontacea'
- 'Bucanopsis is corrected as Bucaniopsis and belongs to Bellerophontacea'
- 'Cyrtolites nitidula is recombined as Temnodiscus nitidula'
- 'Eunema salopiense belongs to Eunema'
- 'Euomphalopterus apedalensis belongs to Euomphalopterus'
- 'Globispira acuta belongs to Globispira'
- 'Gyronema octavia multicarinata belongs to Gyronema octavia'
- 'Helictes aequilaterus is recombined as Stenoloron aequilaterum'
- 'Hormotoma grayiana belongs to Murchisonia (Hormotoma)'
- 'Liospira cornovica belongs to Liospira'
- 'Liospira uriconiensis belongs to Liospira'
- 'Lophospira angulata belongs to Lophospira'
- 'Lophospira trilineata belongs to Lophospira'
- 'Lophospira trilineata belongs to Lophospira'
- 'Lophospira woodlandi belongs to Lophospira'
- 'Loxonema bellatula is recombined as Elasmonema bellatula'
- 'Murchisonia pulchra is recombined as Lophospira pulchra'
- 'Pagodea concomitans belongs to Pagodea'
- 'Pagodea valentica belongs to Pagodea'
- 'Pileopsis cornuta is recombined as Platyceras cornutum'
- 'Pleurotomaria jugosum is recombined as Phanerotrema jugosum'
- 'Pleurotomaria solarioides is recombined as Anomphalus solarioides'
- 'Pleurotomaria umbilicata is recombined as Trochonema umbilicatum'
- 'Pleurotomaria vitruvia is recombined as Liospira vitruvia'
- 'Pterotheca avirostris belongs to Pterotheca'
- 'Sinuitopsis congruens belongs to Sinuitopsis'
- 'Sinuitopsis neglecta belongs to Sinuitopsis'
- 'Sinuitopsis subquadrata belongs to Sinuitopsis'
- 'Stenoloronoron aequilaterum shelvensis belongs to Stenoloronoron aequilaterum'
- 'Trochonema valenticum belongs to Trochonema'
- 'Trochus lenticularis is recombined as Liospira lenticularis'
- 'Turbinites alatus is recombined as Euomphalopterus alatus'
- 'Turbo octavia is recombined as Gyronema octavium'
- 'Turbo rupestre is recombined as Eunema rupestre'
- 'Turritella cancellata is recombined as Holopella cancellata'
- 'Ulrichospira similis belongs to Ulrichospira'