Class Mammalia Linnaeus, 1758 - mammals
   Order Cetacea Brisson, 1762 - whales, dolphins, and porpoises see Infraorder Cetacea Brisson, 1762
     Suborder Odontoceti Flower, 1867 - toothed whales see Parvorder Odontoceti Flower, 1867
       Family Delphinidae Gray, 1821 - oceanic dolphins
         Genus Lagenorhynchus Gray, 1846 - short-beaked dolphins
           1 Lagenorhynchus acutus (Gray, 1828) - Atlantic white-sided dolphin
           2 Lagenorhynchus albirostris (Gray, 1846) - white-beaked dolphin
           3 Lagenorhynchus australis (Peale, 1848) - Peale's dolphin
           4 Lagenorhynchus cruciger (Quoy & Gaimard, 1824) - hourglass dolphin
           5 Lagenorhynchus obliquidens Gill, 1865 - Pacific white-sided dolphin
           6 Lagenorhynchus obscurus (Gray, 1828) - dusky dolphin