Mammals of the families Delphinidae (ocean dolphins), Iniidae, Lipotidae, Pontoporiidae, and Platanistidae (all river dolphins). Among the most well-known species are the BOTTLE-NOSED DOLPHIN and the KILLER WHALE (a dolphin). The common name dolphin is applied to small cetaceans having a beaklike snout and a slender, streamlined body, whereas PORPOISES are small cetaceans with a blunt snout and rather stocky body. (From Walker's Mammals of the World, 5th ed, pp978-9)

Synonyms: txid103598, Franciscana, Piebald Dolphins, txid103596, txid103594, txid103592, Dolphin, Atlantic White-Sided Dolphin, Delphinidae, Ocean Dolphin, Irrawaddy River Dolphin, Orcaella brevirostri, Ganges River Dolphin, Orcaella brevirostris, Steno bredanensis, Pontoporia blainvilleus, Whale, Pygmy Killer, txid46167, Melon-Headed Whales, txid48747, Marine Dolphin, Ocean Dolphins, Cephalorhynchus, Peponocephala electra, Pseudorca crassidens, False Killer Whales, Lagenodelphis hosei, White-Beaked Dolphins, Pseudorca crassiden, Pontoporia blainvillei, Dolphins, Melon-Headed Whale, Sousa, Planista gangetica, Atlantic White-Sided Dolphins, Susus, Lissodelphis, txid27610, txid27612, txid48750, Platanistas, White Beaked Dolphins, Fraser's Dolphin, txid27607, Baiji, txid27609, Franciscanas, Many-Toothed Blackfish, Many Toothed Blackfish, Feresa attenuata, White-Beaked Dolphin, Tucuxi Dolphins, Baijus, Piebald Dolphin, Right Whale Dolphins, Lissodelphi, Rissos Dolphin, Humpback Dolphin, Lagenorhynchus albirostris, Planista gangeticas, La Plata Dolphin, Whale, False Killer, Whale, Melon-Headed, txid82174, Tucuxi Dolphin, Rough-Toothed Dolphins, Pacific White-Sided Dolphins, txid90246, Amazon River Dolphins, txid90247, Humpback Dolphins, Marine Dolphins, Ganges Dolphin, Langenorhynchus obliquiden, Sotalia fluviatilis, Rough Toothed Dolphin, Fraser Dolphin, Lagenorhynchus, False Killer Whale, Yangtze River Dolphin, Pygmy Killer Whales, txid9725, txid9726, Gray Grampus, Lipotes vexillifer, Pacific White Sided Dolphins, Chinese River Dolphin, Pacific White-Sided Dolphin, Dolphin, Fraser's, txid118797, Langenorhynchus obliquidens, Right Whale Dolphin, Rough-Toothed Dolphin, Frasers Dolphin, Lagenodelphis hoseus, Lagenorhynchus albirostri, Inia geoffrensis, Atlantic White Sided Dolphins, txid48723, Risso Dolphin, Melon Headed Whale, Platanista, Lagenorhynchus acutus, Amazon Dolphins, Pygmy Killer Whale, Grampus griseus, txid83653, Risso's Dolphin, Sotalia fluviatili, txid103599