The Delphinidae Family of oceanic dolphins are a widely distributed family of mammals that live in the sea which has close to forty extant species recognized. This family includes several large species whose common name includes the word whale instead of dolphin. For example: killer whale (orca), pilot whale and round-headed whales.

Oceanic dolphins range in size from less than six feet to over 30 feet in length, from about 100 pounds to 22,000 pounds. Too, several species exhibit sexual dimorphism, with the males being larger than the females.

The parvorder Odontoceti is divided into three (tribes of) families:

Delphinidae-Dolphins

Monodontidae-Whales

Phocoenidae-Porpoises

Lagenodelphia hosei

Feresa attenuata

Granpus griseus

Peponocephalus electrus

Psuedorca crassidens

Steno bredanesis