''Corophium'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of the

amphipod Amphipoda () is an order of malacostracan crustaceans with no carapace and generally with laterally compressed bodies. Amphipods () range in size from and are mostly detritivores or scavengers. There are more than 10,700 amphipod species cur ...

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Corophiidae Corophiidae is a family of amphipods, containing the following genera: *'' Americorophium'' Bousfield & Hoover, 1997 *'' Anonychocheirus'' Moore & Myers, 1983 *'' Apocorophium'' Bousfield & Hoover, 1997 *'' Bathyphotis'' Stephensen, 1944 *'' Cha ...

. Formerly a much larger genus, many species have been transferred to segregate genera such as '' Monocorophium'' and '' Crassicorophium''.

Species

''Corophium'' contains 12 species, after the genus was divided into a number of new genera in 1997: *'' Corophium arenarium'' Crawford, 1937 *'' Corophium bicaudatus'' Linnaeus, 1761 *'' Corophium colo'' Lowry, 2004 *'' Corophium denticulatum'' Ren, 1995 *'' Corophium grossipes'' Linnaeus, 1767 *'' Corophium laevicorne'' Sowinsky, 1880 *'' Corophium linearis'' Pennant, 1777 *'' Corophium longicornis'' J. C. Fabricius, 1779 *'' Corophium multisetosum'' Stock, 1952 *'' Corophium orientale'' Schellenberg, 1928 *'' Corophium urdaibaiense'' Marquiegui & Perez, 2006 *''

Corophium volutator ''Corophium volutator'' is a species of amphipod crustacean in the family Corophiidae. It is found in mudflats of the northern Atlantic Ocean The Atlantic Ocean is the second largest of the world's five borders of the oceans, oceanic div ...

'' (Pallas, 1766)

''Corophium arenarium''

''C. arenarium'' may reach 7 mm long and looks very similar to '' C. volutator''. It burrows in bottom sediments, between 10 and 60 metres deep. ''C. arenarium'' occurs on the coasts of France and the North Sea.

''Corophium multisetosum''

''C. multisetosum'' may grow to 9 mm and builds mud burrows in clay or sand in fresh or weakly brackish habitats. It occurs on the coasts of the Netherlands, France, Germany, Poland and the British Isles.

''Corophium volutator''

''C. volutator'' inhabits the upper layers of

sand Sand is a granular material composed of finely divided mineral particles. Sand has various compositions but is usually defined by its grain size. Sand grains are smaller than gravel and coarser than silt. Sand can also refer to a textural ...

on the coasts of the

Netherlands , Terminology of the Low Countries, informally Holland, is a country in Northwestern Europe, with Caribbean Netherlands, overseas territories in the Caribbean. It is the largest of the four constituent countries of the Kingdom of the Nether ...

Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...

, the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...

and

France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...

, as well as in the

Bay of Fundy The Bay of Fundy () is a bay between the Canadian provinces of New Brunswick and Nova Scotia, with a small portion touching the U.S. state of Maine. It is an arm of the Gulf of Maine. Its tidal range is the highest in the world. The bay was ...

New Brunswick New Brunswick is a Provinces and Territories of Canada, province of Canada, bordering Quebec to the north, Nova Scotia to the east, the Gulf of Saint Lawrence to the northeast, the Bay of Fundy to the southeast, and the U.S. state of Maine to ...

Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...

. They grow to 10 mm, and can occur in huge quantities: up to 40,000 per square metre have been observed.

References

{{Taxonbar, from=Q3933889 Corophiida Amphipod genera