Image from page 51 of "Cetaceans of the Channel Islands National Marine Sanctuary / prepared for National Oceanic and Atmospheric Administration, Channel Islands National Marine Sanctuary and NOAA, National Marine Fisheries Service by Stephen Leatherwood

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Body to almost 3 m long. Body black to dusky gray on back (distinct cape), lighter on sides, with white belly patch which may extend onto sides in area of anus. Head rounded; no beak; lips white; lower jaw and chin may be white. Dorsal fin to 'Am tall, erectly falcate; located near midpoint of back. Flippers rounded on tips. Distribution tropical and subtropical. 46 Pygmy Killer Whale Feresa attenuata (T)

Source: https://www.flickr.com/photos/internetarchivebookimages/19966622724/

The pygmy killer whale (Feresa attenuata) is a poorly known and rarely seen oceanic dolphin. It derives its common name from sharing some physical characteristics with the killer whale. It is the smallest species that has "whale" in its common name. Although the species has been known to be extremely aggressive in captivity, this aggressive behavior has not been observed in the wild. Order: Artiodactyla, Infraorder: Cetacea, Family: Delphinidae, Genus: Feresa, Species: Feresa attenuata (Gray, 1874).