Taxonomic names from J. E. Gray 1866
- Arctocephalus californianus, J. E. Gray 1866 [Otariidae]
- Arctocephalus monteriensis, J. E. Gray 1866 [Otariidae]
- Arctocephalus nigriscens, Gray 1859 [Otariidae]
- Balaenoptera antarctica, Temminck 1841 [Balaenopteridae]
- Balaenoptera brasiliensis, J. E. Gray 1846 [Balaenopteridae]
- Balaenoptera indica, Blyth 1842 [Balaenopteridae]
- Balaenoptera swinhoei, J. E. Gray 1866 [Balaenopteridae]
- Callocephalus, F. Cuvier 1827 [Phocidae]
- Catodon australis, W. S. MacLeay 1851 [Physeteridae]
- Cuvierius, J. E. Gray 1866 [Balaenopteridae]
- Cystophora antillarum, J. E. Gray 1849 [Phocidae]
- Cystophorinae, subfamily (J. E. Gray 1866) [Phocidae]
- Cystophorini, subfamily, J. E. Gray 1866 [Phocidae]
- Delphinus albimanus, Peale 1848 [Delphinidae]
- Delphinus breviceps, Jacquinot and Pucheran 1853 [Delphinidae]
- Delphinus brevimanus, Wagner 1846 [Delphinidae]
- Delphinus catalania, J. E. Gray 1844 [Delphinidae]
- Delphinus major, J. E. Gray 1866 [Delphinidae]
- Delphinus marginatus, Duvernoy 1857 [Delphinidae]
- Delphinus moorei (J. E. Gray 1866) [Delphinidae]
- Delphinus perniger, Blyth 1848 [Delphinidae]
- Delphinus punctatus, J. E. Gray 1866 [Delphinidae]
- Delphinus roseiventris, Wagner 1846 [Delphinidae]
- Delphinus stenorhynchus, J. E. Gray 1866 [Delphinidae]
- Delphinus tethyos, Gervais 1853 [Delphinidae]
- Delphinus walkeri, J. E. Gray 1866 [Delphinidae]
- Electra (J. E. Gray 1866) [Delphinidae]
- Euphysetes, Wall 1851 [Kogiidae]
- Euphysetes macleayi, Kreft 1865 [Kogiidae]
- Globicephalinae, subfamily (J. E. Gray 1866) [Delphinidae]
- Globicephalus chinensis, J. E. Gray 1866 [Delphinidae]
- Globicephalus edwardsii, J. E. Gray 1866 [Delphinidae]
- Globicephalus indicus, Blyth 1852 [Delphinidae]
- Globicephalus intermedius, J. E. Gray 1827 [Delphinidae]
- Globiocephalus incrassatus, J. E. Gray 1861 [Delphinidae]
- Grampus affinis, J. E. Gray 1866 [Delphinidae]
- Halicore tabernaculi, Ruppell 1843 [Dugongidae]
- Halicyon, J. E. Gray 1864 [Phocidae]
- Halicyon richardi, J. E. Gray 1866 [Phocidae]
- Lagenorhynchus acutus (Gray 1828) [Delphinidae]
- Lagenorhynchus coeruleoalbus, Meyen 1833 [unclassified species]
- Macleayius australiensis, J. E. Gray 1866 [Balaenidae]
- Manatus australis, Retzius 1794 [Trichechinae]
- Manatus senegalensis, Desmarest 1817 [Trichechinae]
- Meganeuron, J. E. Gray 1866 [Physeteridae]
- Meganeuron krefftii, J. E. Gray 1866 [Physeteridae]
- Megaptera burmeisteri, J. E. Gray 1866 [Balaenopteridae]
- Neophoca cinerea (F. Peron 1816) [Otariidae]
- Orca (Orcaella), J. E. Gray 1866 [Delphinidae]
- Orca (Orcaella) brevirostris, J. E. Gray 1866 [Delphinidae]
- Orca (Pseudorca) meridionalis, Flower 1864 [Delphinidae]
- Pagomys, Gray 1860 [Phocidae]
- Phoca dimidiata, Schlegel 1800 [Phocidae]
- Phoca elephantina, Molina 1782 [Phocidae]
- Phocaena (Acanthodelphis), J. E. Gray 1866 [Phocoenidae]
- Phocaena edwardii, Smith 1834 [Delphinidae]
- Phocaena tuberculifera, J. E. Gray 1865 [Phocoenidae]
- Physalus latirostris, Flower 1864 [Balaenopteridae]
- Poescopia lalandii, J. E. Gray 1866 [Balaenopteridae]
- Sibbaldius (Rudolphius), J. E. Gray 1866 [Balaenopteridae]
- Sibbaldius antarcticus, Burmeister 1865 [Balaenopteridae]
- Sotalia, J. E. Gray 1866 [Delphinidae]
- Sphaerocephalus incrassatus, J. E. Gray 1866 [Delphinidae]
- Steno (Tucuxa), J. E. Gray 1866 [Delphinidae]
- Steno capensis, J. E. Gray 1866 [Delphinidae]
- Steno tucuxi, J. E. Gray 1857 [Delphinidae]
- Tursio dorcides, J. E. Gray 1866 [Delphinidae]