Blue knifefish
Encyclopedia
The blue knifefish, Labracoglossa nitida, is a sea chub
Sea chub
The sea chubs are a family, Kyphosidae, of fishes in the order Perciformes.-Subfamilies:* Girellinae - nibblers* Kyphosinae* Microcanthinae Johnson, 1984 * Scorpidinae...

 of the genus Labracoglossa, found off eastern Australia
Australia
Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

, and around offshore islands of the east coast of New Zealand
New Zealand
New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

, to depths of 20 m. Its length is between 15 and 20 cm.
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