Opinions from G. Dal Piaz 1929
- 'Acrodelphidae belongs to Squaloceti'
- 'Acrodelphinae belongs to Acrodelphidae'
- 'Acrodelphis belongs to Acrodelphinae'
- 'Argyrocetinae belongs to Acrodelphidae'
- 'Balaena physalus is recombined as Balaenoptera physalus'
- 'Balaenoptera belongs to Balaenopteridae'
- 'Balaenopteridae belongs to Mysticeti'
- 'Champsodelphis ombonii is recombined as Acrodelphis ombonii'
- 'Cyrtodelphis belongs to Argyrocetinae'
- 'Delphinidae belongs to Delphinoceti'
- 'Delphinus belongs to Delphinidae'
- 'Delphinus (Grampus) was reranked as Grampus and belongs to Delphinidae'
- 'Delphinus delphis belongs to Delphinus'
- 'Delphinus griseus is recombined as Grampus griseus'
- 'Delphinus sulcatus is recombined as Cyrtodelphis sulcatus'
- 'Eoplatanista belongs to Iniinae'
- 'Eoplatanista italica belongs to Eoplatanista'
- 'Iniinae belongs to Acrodelphidae'
- 'Monachus belongs to Phocidae'
- 'Phoca albiventer belongs to Phoca' according to Boddaert 1785
- 'Phoca albiventer is recombined as Monachus albiventer'
- 'Phocadae is corrected as Phocidae and belongs to Pinnipedia'
- 'Physeter belongs to Physeteridae'
- 'Physeter macrocephalus belongs to Physeter'
- 'Physeteridae belongs to Squaloceti'
- 'Protodelphinus belongs to Delphinidae'
- 'Rhizoprion bariensis is recombined as Squalodon bariensis'
- 'Scaldicetus belongs to Physeteridae'
- 'Scaldicetus bellunensis belongs to Scaldicetus'
- 'Squalodelphidae belongs to Squaloceti'
- 'Squalodelphis belongs to Squalodelphidae'
- 'Squalodelphis fabianii belongs to Squalodelphis'
- 'Squalodon belongs to Squalodontidae'
- 'Squalodon bariensis bellunensis is recombined as Squalodon bellunense'
- 'Squalodontidae belongs to Squaloceti'
- 'Tursiops belongs to Delphinidae'
- 'Tursiops parvimanus belongs to Tursiops' according to P. J. Van Beneden 1886
- 'Ziphiidae was reranked as the tribe Ziphiina and belongs to Squaloceti'
- 'Ziphiodelphis belongs to Ziphiidae'
- 'Ziphiodelphis abeli belongs to Ziphiodelphis'