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Cyclopoida

{{Short description|Order of crustaceans}}

{{Automatic taxobox

| image = Cyclops.jpg

| image_caption = Cyclops sp.

| display_parents = 2

| taxon = Cyclopoida

| authority = Burmeister, 1834

| subdivision_ranks = Families

| subdivision = See text

}}

The Cyclopoida are an order of small crustaceans from the class Copepoda. Like many other copepods, members of Cyclopoida are small, planktonic animals living both in the sea and in freshwater habitats. They are capable of rapid movement. Their larval development is metamorphic, and the embryos are carried in paired or single sacs attached to first abdominal somite.{{cite web |author=J. K. Lowry |url=http://www.crustacea.net/crustace/www/cyclopoi.htm |work=Crustacea, the Higher Taxa: Description, Identification, and Information Retrieval |date=October 2, 1999 |title=Cyclopoida (Copepoda, Maxillipoda) |access-date=November 20, 2010 |publisher=Australian Museum |archive-url=https://web.archive.org/web/20120415065313/http://www.crustacea.net/crustace/www/cyclopoi.htm |archive-date=April 15, 2012 |url-status=dead }}

Distinguishing features

Cyclopoids are distinguished from other copepods by having first antennae shorter than the length of the head and thorax, and uniramous second antennae. The main joint lies between the fourth and fifth segments of the body.{{cite book |author= Barnes, Robert D. |year=1982 |title= Invertebrate Zoology |publisher= Holt-Saunders International |location= Philadelphia, PA|pages= 692|isbn= 0-03-056747-5}}

Taxonomy

Cyclopoida contains 30 families:{{cite web |author=Geoff Boxshall & T. Chad Walter |year=2018 |title=Cyclopoida |editor=T. Chad Walter & Geoff Boxshall |work=World of Copepods database |publisher=World Register of Marine Species |url=http://www.marinespecies.org/aphia.php?p=taxdetails&id=1101 |access-date=April 11, 2018}}

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Several more families are included in suborder Poecilostomatoida, a temporary name for the "poecilostome lineage" {{cite web |author=Geoff Boxshall & T. Chad Walter |year=2018 |title=Poecilostomatoida |editor=T. Chad Walter & Geoff Boxshall |work=World of Copepods database |publisher=World Register of Marine Species |url=http://www.marinespecies.org/aphia.php?p=taxdetails&id=1103 |access-date=April 11, 2018}} The Poecilostomatoida were previously treated as a separate order, but molecular phylogenies show that this lineage is nested within the Cyclopoida.{{cite journal |first1=S |last1=Khodami|last2=McArthur|first2=JV|last3=Blanco-Bercial|first3=L|last4=Martinez Arbizu|year=2017 |title=Molecular Phylogeny and Revision of Copepod Orders (Crustacea: Copepoda) |journal=Scientific Reports |volume=7 |issue=1 |page=9164 |doi=10.1038/s41598-017-06656-4|pmid=28831035|pmc=5567239|bibcode=2017NatSR...7.9164K}}{{Retracted|doi=10.1038/s41598-020-74404-2|pmid=33057148}}

References

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External links

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  • [https://web.archive.org/web/20110505092612/http://www.tafi.org.au/zooplankton/imagekey/copepoda/cyclopoida/ Cyclopoida fact sheet - Guide to the marine zooplankton of south eastern Australia]
  • [http://protist.i.hosei.ac.jp/PDB/Images/Multicell/Arthropoda/Cyclopoida/ Cyclopoida pictures]
  • [https://web.archive.org/web/20040925233353/http://www.fmnh.helsinki.fi/users/haaramo/Metazoa/Protostoma/Arthropoda/Crustacea/Maxillopoda/Cyclopoida.html Mikko's Phylogeny Archive: Cyclopoida]

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Category:Crustacean orders