Cyclopoida

Cyclopoida
	Cyclops sp.
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Copepoda
Superorder:	Podoplea
Order:	Cyclopoida; Burmeister, 1834
Families
	See text

The Cyclopoida are an order of small crustaceans from the subclass 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.^[1]

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.^[2]

Taxonomy

Cyclopoida contains 30 families:^[3]

Archinotodelphyidae Lang, 1949
Ascidicolidae Thorell, 1859
Botryllophilidae Sars G.O., 1921
Buproridae Thorell, 1859
Chitonophilidae Avdeev & Sirenko, 1991
Chordeumiidae Boxshall, 1988
Corallovexiidae Stock, 1975
Cucumaricolidae Bouligand & Delamare-Deboutteville, 1959
Cyclopettidae Martínez Arbizu, 2000
Cyclopicinidae Khodami, Vaun MacArthur, Blanco-Bercial & Martinez Arbizu, 2017
Cyclopidae Rafinesque, 1815
Cyclopinidae Sars G.O., 1913
Enterognathidae Illg & Dudley, 1980
Enteropsidae Thorell, 1859
Fratiidae Ho, Conradi & López-González, 1998
Giselinidae Martínez Arbizu, 2000
Hemicyclopinidae Martínez Arbizu, 2001
Lernaeidae Cobbold, 1879
Mantridae Leigh-Sharpe, 1934
Micrallectidae Huys, 2001
Notodelphyidae Dana, 1853
Oithonidae Dana, 1853
Ozmanidae Ho & Thatcher, 1989
Paralubbockiidae Boxshall & Huys, 1989
Psammocyclopinidae Martínez Arbizu, 2001
Pterinopsyllidae Sars G.O., 1913
Schminkepinellidae Martínez Arbizu, 2006
Smirnovipinidae Khodami, Vaun MacArthur, Blanco-Bercial & Martinez Arbizu, 2017
Speleoithonidae Rocha & Iliffe, 1991
Thaumatopsyllidae Sars G.O., 1913
Cyclopoida incertae sedis – 8 genera

Several more families are included in Suborder Poecilostomatoida, a temporary name for the "poecilostome lineage" ^[4] The Poecilostomatoida were previously treated as a separate order, but molecular phylogenies show that this lineage is nested within the Cyclopoida.^[5]

References

^ J. K. Lowry (October 2, 1999). "Cyclopoida (Copepoda, Maxillipoda)". Crustacea, the Higher Taxa: Description, Identification, and Information Retrieval. Australian Museum. Archived from the original on April 15, 2012. Retrieved November 20, 2010.
^ Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphia, PA: Holt-Saunders International. p. 692. ISBN 0-03-056747-5.
^ Geoff Boxshall & T. Chad Walter (2018). T. Chad Walter & Geoff Boxshall (ed.). "Cyclopoida". World of Copepods database. World Register of Marine Species. Retrieved April 11, 2018.
^ Geoff Boxshall & T. Chad Walter (2018). T. Chad Walter & Geoff Boxshall (ed.). "Poecilostomatoida". World of Copepods database. World Register of Marine Species. Retrieved April 11, 2018.
^ Khodami, S; McArthur, JV; Blanco-Bercial, L; Martinez Arbizu (2017). "Molecular Phylogeny and Revision of Copepod Orders (Crustacea: Copepoda)". Scientific Reports. 7 (1): 9164. Bibcode:2017NatSR...7.9164K. doi:10.1038/s41598-017-06656-4. PMC 5567239. PMID 28831035. (Retracted, see doi:10.1038/s41598-020-74404-2, PMID 33057148. If this is an intentional citation to a retracted paper, please replace {{retracted|...}} with {{retracted|...|intentional=yes}}.)