''Euphausia'' is the largest

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

krill Krill are small crustaceans of the order Euphausiacea, and are found in all the world's oceans. The name "krill" comes from the Norwegian word ', meaning "small fry of fish", which is also often attributed to species of fish. Krill are consid ...

, and is placed in the family

Euphausiidae Krill are small crustaceans of the order Euphausiacea, and are found in all the world's oceans. The name "krill" comes from the Norwegian word ', meaning "small fry of fish", which is also often attributed to species of fish. Krill are consi ...

. There are 31 species known in this genus, including

Antarctic krill Antarctic krill (''Euphausia superba'') is a species of krill found in the Antarctic waters of the Southern Ocean. It is a small, swimming crustacean that lives in large schools, called swarms, sometimes reaching densities of 10,000–30,000 in ...

(''Euphausia superba'') and ice krill ('' Euphausia crystallorophias'') from the

Southern Ocean The Southern Ocean, also known as the Antarctic Ocean, comprises the southernmost waters of the World Ocean, generally taken to be south of 60° S latitude and encircling Antarctica. With a size of , it is regarded as the second-smal ...

, and North Pacific krill ('' Euphausia pacifica'') in the

Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the contine ...

. *''

Euphausia americana ''Euphausia'' is the largest genus of krill, and is placed in the family Euphausiidae. There are 31 species known in this genus, including Antarctic krill (''Euphausia superba'') and ice krill (''Euphausia crystallorophias'') from the Southern ...

'' Hansen, 1911 *'' Euphausia brevis'' Hansen, 1905 *'' Euphausia crystallorophias'' Holt & Tattersall, 1906 *'' Euphausia diomedeae'' Ortmann, 1894 *''

Euphausia distinguenda ''Euphausia'' is the largest genus of krill, and is placed in the family Euphausiidae. There are 31 species known in this genus, including Antarctic krill (''Euphausia superba'') and ice krill (''Euphausia crystallorophias'') from the Southern Oc ...

'' Hansen, 1908 *'' Euphausia eximia'' Hansen, 1911 *'' Euphausia fallax'' Hansen, 1916 *''

Euphausia frigida ''Euphausia'' is the largest genus of krill, and is placed in the family Euphausiidae. There are 31 species known in this genus, including Antarctic krill (''Euphausia superba'') and ice krill ('' Euphausia crystallorophias'') from the Southern ...

'' Hansen, 1911 *''

Euphausia gibba ''Euphausia'' is the largest genus of krill, and is placed in the family Euphausiidae. There are 31 species known in this genus, including Antarctic krill (''Euphausia superba'') and ice krill ('' Euphausia crystallorophias'') from the Southern ...

'' G. O. Sars, 1883 *'' Euphausia gibboides'' Ortmann, 1893 *''

Euphausia hanseni ''Euphausia'' is the largest genus of krill, and is placed in the family Euphausiidae. There are 31 species known in this genus, including Antarctic krill (''Euphausia superba'') and ice krill (''Euphausia crystallorophias'') from the Southern ...

'' Zimmer, 1915 *'' Euphausia hemigibba'' Hansen, 1910 *''

Euphausia krohnii ''Euphausia'' is the largest genus of krill, and is placed in the family Euphausiidae. There are 31 species known in this genus, including Antarctic krill (''Euphausia superba'') and ice krill ('' Euphausia crystallorophias'') from the Southern ...

'' (Brandt, 1851) *''

Euphausia lamelligera ''Euphausia'' is the largest genus of krill, and is placed in the family Euphausiidae. There are 31 species known in this genus, including Antarctic krill (''Euphausia superba'') and ice krill ('' Euphausia crystallorophias'') from the Southern ...

'' Hansen, 1911 *''

Euphausia longirostris ''Euphausia'' is the largest genus of krill, and is placed in the family Euphausiidae. There are 31 species known in this genus, including Antarctic krill (''Euphausia superba'') and ice krill ('' Euphausia crystallorophias'') from the Southern ...

'' Hansen, 1908 *''

Euphausia lucens ''Euphausia'' is the largest genus of krill, and is placed in the family Euphausiidae. There are 31 species known in this genus, including Antarctic krill (''Euphausia superba'') and ice krill ('' Euphausia crystallorophias'') from the Southern ...

'' Hansen, 1905 *''

Euphausia mucronata ''Euphausia'' is the largest genus of krill, and is placed in the family Euphausiidae. There are 31 species known in this genus, including Antarctic krill (''Euphausia superba'') and ice krill ('' Euphausia crystallorophias'') from the Southern ...

'' G. O. Sars, 1883 *''

Euphausia mutica ''Euphausia'' is the largest genus of krill, and is placed in the family Euphausiidae. There are 31 species known in this genus, including Antarctic krill (''Euphausia superba'') and ice krill (''Euphausia crystallorophias'') from the Southern ...

'' Hansen, 1905 *''

Euphausia nana ''Euphausia'' is the largest genus of krill, and is placed in the family Euphausiidae. There are 31 species known in this genus, including Antarctic krill (''Euphausia superba'') and ice krill (''Euphausia crystallorophias'') from the Southern ...

'' Brinton, 1962 *'' Euphausia pacifica'' Hansen, 1911 *''

Euphausia paragibba ''Euphausia'' is the largest genus of krill, and is placed in the family Euphausiidae. There are 31 species known in this genus, including Antarctic krill (''Euphausia superba'') and ice krill ('' Euphausia crystallorophias'') from the Southern ...

'' Hansen, 1910 *''

Euphausia pseudogibba ''Euphausia'' is the largest genus of krill, and is placed in the family Euphausiidae. There are 31 species known in this genus, including Antarctic krill (''Euphausia superba'') and ice krill ('' Euphausia crystallorophias'') from the Southern ...

'' Ortmann, 1893 *''

Euphausia recurva ''Euphausia'' is the largest genus of krill, and is placed in the family Euphausiidae. There are 31 species known in this genus, including Antarctic krill (''Euphausia superba'') and ice krill (''Euphausia crystallorophias'') from the Souther ...

'' Hansen, 1905 *''

Euphausia sanzoi ''Euphausia'' is the largest genus of krill, and is placed in the family Euphausiidae. There are 31 species known in this genus, including Antarctic krill (''Euphausia superba'') and ice krill ('' Euphausia crystallorophias'') from the Southern O ...

'' Torelli, 1934 *''

Euphausia sibogae ''Euphausia'' is the largest genus of krill, and is placed in the family Euphausiidae. There are 31 species known in this genus, including Antarctic krill (''Euphausia superba'') and ice krill (''Euphausia crystallorophias'') from the Southern ...

'' Hansen, 1908 *''

Euphausia similis ''Euphausia'' is the largest genus of krill, and is placed in the family Euphausiidae. There are 31 species known in this genus, including Antarctic krill (''Euphausia superba'') and ice krill ('' Euphausia crystallorophias'') from the Southern ...

'' G. O. Sars, 1885 *'' Euphausia spinifera'' G. O. Sars, 1885 *''

Euphausia superba Antarctic krill (''Euphausia superba'') is a species of krill found in the Antarctic waters of the Southern Ocean. It is a small, swimming crustacean that lives in large schools, called swarms, sometimes reaching densities of 10,000–30,000 ind ...

'' Dana, 1850 *'' Euphausia tenera'' Hansen, 1905 *'' Euphausia triacantha'' Holt & Tattersall, 1906 *'' Euphausia vallentini'' Stebbing, 1900

References

External links

* Krill Crustacean genera Taxa named by James Dwight Dana {{Malacostraca-stub