Opinions from J. B. Fischer 1829
- 'Balaena cortesii belongs to Balaena'
- 'Balaena cuvierii belongs to Balaena'
- 'Cynocephalus anubis is recombined as Simia anubis'
- 'Delphinus albigena belongs to Delphinus'
- 'Delphinus bertini belongs to Delphinus' according to Desmarest 1817
- 'Delphinus bivittatus belongs to Delphinus'
- 'Delphinus boryi belongs to Delphinus' according to Desmarest 1822
- 'Delphinus boryi belongs to Delphinus'
- 'Delphinus bredanensis belongs to Delphinus'
- 'Delphinus canadensis belongs to Delphinus'
- 'Delphinus coronatus belongs to Delphinus'
- 'Delphinus cortesii belongs to Delphinus'
- 'Delphinus cruciger belongs to Delphinus'
- 'Delphinus delphis belongs to Delphinus'
- 'Delphinus dubius belongs to Delphinus'
- 'Delphinus feres belongs to Delphinus'
- 'Delphinus geoffrensis is corrected as Delphinus geofroyi and belongs to Delphinus'
- 'Delphinus globiceps belongs to Delphinus'
- 'Delphinus griseus belongs to Delphinus'
- 'Delphinus hyperoodon belongs to Delphinus'
- 'Delphinus intermedius belongs to Delphinus'
- 'Delphinus kingii belongs to Delphinus'
- 'Delphinus leucas belongs to Delphinus'
- 'Delphinus leucocephalus belongs to Delphinus'
- 'Delphinus lunatus belongs to Delphinus' according to Lesson 1826
- 'Delphinus macrogenius belongs to Delphinus'
- 'Delphinus maculatus belongs to Delphinus' according to Lesson and Garnot 1826
- 'Delphinus maculatus belongs to Delphinus'
- 'Delphinus malayanus belongs to Delphinus'
- 'Delphinus minimus belongs to Delphinus' according to Lesson 1826
- 'Delphinus niger belongs to Delphinus' according to Lacepede 1818
- 'Delphinus orca belongs to Delphinus'
- 'Delphinus pernettensis is corrected as Delphinus pernettyi and belongs to Delphinus'
- 'Delphinus peronii belongs to Delphinus'
- 'Delphinus phocoena is corrected as Delphinus phocaena and belongs to Delphinus'
- 'Delphinus rhinoceros belongs to Delphinus'
- 'Delphinus rissoanus belongs to Delphinus'
- 'Delphinus superciliosus belongs to Delphinus'
- 'Delphinus tursio belongs to Delphinus'
- 'Echymipera kalubu belongs to Echymipera'
- 'Halicore belongs to Sirenia'
- 'Heterodon dalei is recombined as Delphinus dalei'
- 'Hydrodamalis stelleri is recombined as Rytina stelleri'
- 'Manatus belongs to Sirenia'
- 'Manatus australis belongs to Manatus'
- 'Manatus latirostris belongs to Manatus'
- 'Manatus senegalensis belongs to Manatus'
- 'Monodon monoceros belongs to Monodon'
- 'Monodon spurius is recombined as Delphinus spurius'
- 'Oxypterus mongitori is recombined as Delphinus mongitori'
- 'Phoca stelleri belongs to Phoca'
- 'Physeter macrocephalus belongs to Physeter'
- 'Pongo abelii is recombined as Simia abelii'
- 'Rytina belongs to Sirenia'
- 'Sirenia was reranked as a unranked clade and belongs to Cete'
- 'Trichechus dugon is recombined as Halicore dugong'
- 'Trichechus hydropithecus belongs to Trichechus' according to Shaw 1800
- 'Trichechus hydropithecus is recombined as Manatus hydropithecus'
- 'Trigontherium cuvieri belongs to Trigontherium'
- 'Viverra mungo is recombined as Mangusta mungo'