Opinions from J. G. Marks 1951
- 'Acanthina (Chorus) sula cruziana belongs to Acanthina (Chorus) sula' according to Olsson 1932
- 'Acanthina (Chorus) sula cruziana is recombined as Chorus sula cruziana'
- 'Anachis belongs to Pyrenidae'
- 'Anachis (Costoanachis) stevensoni belongs to Anachis (Costoanachis)'
- 'Antillophos was reranked as Tritiaria (Antillophos) and belongs to Tritiaria'
- 'Cancellaria belongs to Cancellariidae'
- 'Cancellaria (Cancellaria) belongs to Cancellaria'
- 'Cantharus belongs to Buccinidae'
- 'Cantharus (Triumphis) predistortus belongs to Cantharus (Triumphis)'
- 'Cardium (Dinocardium) ecuadorialis is recombined as Dinocardium ecuadorialis'
- 'Chorus belongs to Thaisidae'
- 'Chorus was reranked as Acanthina (Chorus) and belongs to Acanthina' according to Olsson 1932
- 'Chorus sula belongs to Chorus'
- 'Chorus sula is recombined as Acanthina (Chorus) sula' according to Olsson 1932
- 'Costoanachis was reranked as Anachis (Costoanachis) and belongs to Anachis'
- 'Hanetia belongs to Buccinidae'
- 'Loripinus (Pegophysema) is reassigned into Cavilucina'
- 'Lutraria undulata is recombined as Anatina (Raeta) undulata'
- 'Melongena belongs to Buccinidae'
- 'Melongena colombiana belongs to Melongena'
- 'Metis trinitaria colombiensis is recombined as Apolymetis trinitaria colombiensis'
- 'Phos belongs to Nassariidae'
- 'Phos haughti belongs to Phos'
- 'Phos mexicanus is recombined as Tritiaria (Antillophos) mexicana'
- 'Phos tuberaensis belongs to Phos'
- 'Raeta was reranked as Anatina (Raeta) and belongs to Anatina'
- 'Strombina belongs to Pyrenidae'
- 'Strombina cimarroma belongs to Strombina'
- 'Strombina daulechica belongs to Strombina'
- 'Strombina pequenita belongs to Strombina'
- 'Tritiaria belongs to Nassariidae'
- 'Tritiaria (Antillophos) landesi belongs to Tritiaria (Antillophos)'
- 'Triumphis was reranked as Cantharus (Triumphis) and belongs to Cantharus'
- 'Vitularia belongs to Muricidae'
- 'Vitularia ecuadoriana belongs to Vitularia'