The long-finned pilot whale, or pothead whale (Globicephala melas) is a large species of oceanic dolphin. It shares the genus Globicephala with the short-finned pilot whale. Long-finned pilot whales are known as such because of their unusually long pectoral fins.
Long-finned pilot whale
Skeleton of a long-finned pilot whale.
Pilot whale cow and calf – Ireland
Pilot whales – Ireland
Oceanic dolphins or Delphinidae are a widely distributed family of dolphins that live in the sea. Close to forty extant species are recognised. They include several big species whose common names contain "whale" rather than "dolphin", such as the Globicephalinae. Delphinidae is a family within the superfamily Delphinoidea, which also includes the porpoises (Phocoenidae) and the Monodontidae. River dolphins are relatives of the Delphinoidea.
Oceanic dolphin
Etruridelphis giulii skull in Bologna
Dolphins and dolphinlike toothed whales
Cephalorhynchus commersonii