''Eschrichtius'' is a genus of

baleen whale Baleen whales (), also known as whalebone whales, are marine mammals of the order (biology), parvorder Mysticeti in the infraorder Cetacea (whales, dolphins and porpoises), which use baleen plates (or "whalebone") in their mouths to sieve plankt ...

containing two species: the

gray whale The gray whale (''Eschrichtius robustus''), also known as the grey whale,Britannica Micro.: v. IV, p. 693. is a baleen whale that migrates between feeding and breeding grounds yearly. It reaches a length of , a weight of up to and lives between ...

(''E. robustus'') and the extinct

Akishima whale ''Eschrichtius akishimaensis'', described in 2017, is one of two species, with the modern day gray whale, of the genus '' Eschrichtius'', and is the first and only fossil species of the genus, dating to around 1.77–1.95 million years ago (mya) ...

(''E. akishimaensis'').

References

Cetacean genera Mammal genera with one living species Eschrichtiidae Taxa named by John Edward Gray {{Whale-stub