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Thysanoessa inermis.jpg
Thysanoessa inermis
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostraca
Order: Euphausiacea
Family: Euphausiidae
Brandt, 1851  [1]

Several, see text.

Thysanoessa is a genus of krill, containing the following species: [1] [2]

Krill order of crustaceans

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 krill, meaning "small fry of fish", which is also often attributed to species of fish.

Georg Ossian Sars Norwegian marine and freshwater biologist

Prof Georg Ossian Sars HFRSE was a Norwegian marine and freshwater biologist.

Hans Jacob Hansen was a Danish zoologist. He was born in Bellinge and died in Gentofte.

<i>Thysanoessa raschii</i> species of crustacean

Thysanoessa raschii, sometimes known as Arctic krill, is one of the most common euphausiid species of the subarctic and Arctic seas. They may reach 20–25 millimetres (0.8–1.0 in) long, and are sexually mature above 14 mm (0.6 in).

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Northern krill species of krill

Northern krill, Meganyctiphanes norvegica, is a species of krill that lives in the North Atlantic Ocean. It is an important component of the zooplankton, providing food for whales, fish and birds. M. norvegica is the only species recognised in the genus Meganyctiphanes, although it has been known by several synonyms:

Mysidae family of crustacea described by Adrian Hardy Haworth 1825

Mysidae is the largest family of crustaceans in the order Mysida, with over 1000 species in around 170 genera.

<i>Bentheuphausia</i> genus of crustaceans

Bentheuphausia amblyops, the deep sea krill is a species of krill. B. amblyops is the only species within its genus, which in turn is the only genus within the family Bentheuphausiidae. All the 85 other species of krill known are classified in the family Euphausiidae.

<i>Euphausia</i> genus of crustaceans

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 and ice krill from the Southern Ocean, and North Pacific krill in the Pacific Ocean.

<i>Nematoscelis</i> genus of krill

Nematoscelis is a genus of krill, containing the following species:

Stylocheiron is a genus of krill, containing the following species:

Thysanopoda is a genus of krill, containing the following species:

Eumalacostraca subclass of crustaceans containing almost all living malacostracans

Eumalacostraca is a subclass of crustaceans, containing almost all living malacostracans, or about 40,000 described species. The remaining subclasses are the Phyllocarida and possibly the Hoplocarida. Eumalacostracans have 19 segments. This arrangement is known as the "caridoid facies", a term coined by William Thomas Calman in 1909. The thoracic limbs are jointed and used for swimming or walking. The common ancestor is thought to have had a carapace, and most living species possess one, but it has been lost in some subgroups.

<i>Diastylis</i> genus of arthropods

Diastylis is a genus of crustaceans which belong to the family Diastylidae. It includes the following species:

Leuconidae is a family of marine hooded shrimp. The family was established by Georg Ossian Sars in his 1878 study of Mediterranean cumaceans.

<i>Iphinoe</i> genus of crustaceans

Iphinoe is a genus of crustaceans which belong to the family Bodotriidae. It includes the following species:

Carl Locher Danish realist painter

Carl Locher was a Danish realist painter who from an early age became a member of the Skagen group of painters.

Centropagidae is a family of copepods. Its members are particularly common as plankton in coastal waters and in fresh water in Australia and southern South America. They are also found on subantarctic islands and in lakes in Antarctica.

<i>Oenopota</i> genus of molluscs

Oenopota is a genus of sea snails, marine gastropod mollusks in the family Mangeliidae.

<i>Bela</i> (gastropod) genus of molluscs

Bela is a genus of sea snails; marine gastropod mollusks in the family Mangeliidae.

<i>Saduria</i> genus of crustaceans

Saduria is a genus of benthic isopod crustaceans in the family Chaetiliidae, containing the following species:

Dajidae family of crustaceans

The Dajidae are a family of marine isopod crustaceans in the suborder Cymothoida. The original description was made by Giard and Bonnier in 1887. Members of this family are ectoparasites of krill. They resemble a fleshy growth on the krill's back, and make the host look as if it is wearing a rucksack. These genera are included in the family Dajidae:

Cucumariidae family of echinoderms

Cucumariidae is a family of sea cucumbers, marine animals with elongated bodies, leathery skins and tentacles that are found on the sea bed.

<i>Leptasterias</i> genus of echinoderms

Leptasterias is a genus of starfish in the family Asteriidae. Members of this genus are characterised by having six arms although five-armed specimens sometimes occur. L. muelleri is the type species. The taxonomy of the genus is confusing and Leptasterias hexactis seems to be a species complex. Some species brood their eggs.


  1. 1 2 "Thysanoessa Brandt, 1851". Integrated Taxonomic Information System . Retrieved June 19, 2011.
  2. Volker Siegel (2011). V. Siegel, ed. "Thysanoessa Brandt, 1851". World Euphausiacea database. World Register of Marine Species . Retrieved October 4, 2011.