Gray's beaked whale
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Gray's beaked whale, sometimes known as Haast's beaked whale, the scamperdown whale, or the southern beaked whale, is one of the better-known members of the genus Mesoplodon. This species is fairly gregarious and strands relatively frequently for a beaked whale. In the Māori language, this species is called hakurā or iheihe.
An adult female, one of five Gray's beaked whales that stranded at Port Waikato, New Zealand, in 2011
Spade-toothed whale
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The spade-toothed whale is a very little-known species, the rarest species of beaked whale.
Skull of M. traversii from New Zealand (referred to M. layardii in the original description).