The blue warehou or common warehou, Seriolella brama, is a medusafish of the family Centrolophidae found off southern Australia and around New Zealand, at depths of between 50 and 400 m. Its length is up to about 75 cm.
The blue warehou is not to be confused with the bluenose warehou (usually referred to simply as bluenose in New Zealand, and bonita, big-eye or Griffin's silverfish by others) which is a deepwater member of the warehou family.
Source: Wikipedia.org